LVC Event Information

O1 and O2 era:
This page contains the Notices ONLY for the "G" and "GW" events that LVC has released to the public.
These G/GW events occurred during the O1 and O2 science operations intervals which was a private-phase mode of operation
(i.e. Notices were sent to only those sites that had an MOU with the LVC).
As the LVC publishes on each GW event, the Notices for that event are moved from the private portion of the GCN to the public portion.
(Please note that for the next science operation (O3, starting in early 2019), the Notices (& Circulars) are immediately public and distributed without the need of an MOU.)

Post O2 Further Release to Public:
Two of the four GW events mentioned in the Dec 01, 2018 press release have been moved to this public page: G296853(=GW170809) and G298936(=GW170823).

O3 era:
During ER14 and O3, the events released to the public will be prefixed with and "S" (for "Super events").

This page changes after each Notice, so hit your <reload> button NOW.

This table contains information about LVC Triggers and the potential Counterparts found in follow-up observations.
The most recent Notice is listed first (reverse time order).

The 3 left-most columns (EVENT) are the EventNumber and the date/time of the event.
These columns contain:
      the EventNumbers (assigned by LVC) (which is a link to all the original full-format email GCN/LVC Notices on that trigger),
      the Date (yy/mm/dd), and
      the Time (hh:mm:ss.ss) of the start of the event or the follow-up observation.

The next 14 columns (OBSERVATION) come from the results of the various observations and analyses by the LVC (or the Counterpart).
These columns contain:
      the NoticeType is Preliminary, Initial, Update, or Retracted; Tests are not listed,
      the FAR (False Alarm Rate) specifies how often a trigger of this intensity would happen from just noise fluctuations,
      then for the CBC Triggers, the values of ChirpMass, Eta (mass ratio), and Max detectable Distance are given,
      then for the Burst Triggers, the values of Fluence, Central Frequency, and Duration are given,
      then for the Counterparts, the link to the Counterpart Notices are given,
      then the URLs for the LPM (Location Probability Map) and the EVENT webpages are given (access requires login),
      then the Comments from the full-format email respective Notices.
The RA,Dec locations are in J2000 epoch. If a column's information is not available or is not applicable, then that entry is listed as "n/a" or left blank.
There are more fields of information than are shown in this Table;
please refer to the full notices in the links in the EventNum column.

For more information on the LVC operation: LVC.

Mail questions/suggestions/complaints to Scott Barthelmy.

LVC EVENTS (in the Public O3 era)
EVENT OBSERVATION

CBC Burst Cpart URLs

EventNum Date Time UT S E Q # Notice Type Group Type Search Type Pipeline Type FAR NS REMN BNS NSBH BBH Mass Gap Terres Fluence Central Freq Duration SKYMAP Event Comments

S190720a XML 2019/07/20 00:08:36.704102 3 Upd 1 1 0 3.802e-09 0.00 0.00 0.00 0.00 0.98 0.00 0.01 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190720a XML 2019/07/20 00:08:36.704102 2 Ini 1 1 0 3.802e-09 0.00 0.00 0.00 0.00 0.98 0.00 0.01 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190720a XML 2019/07/20 00:08:36.747070 1 Pre 1 3 0 2.248e-09 0.00 0.00 0.00 0.00 0.99 0.00 0.00 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190630ag XML 2019/06/30 18:52:05.179550 3 Upd 1 1 4 1.435e-13 0.00 0.00 0.00 0.00 0.94 0.05 0.00 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190718y XML 2019/07/18 14:35:12.067865 3 Ini 1 1 4 3.649e-08 1.00 1.00 0.02 0.00 0.00 0.00 0.97 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190718y XML 2019/07/18 14:35:12.067865 2 Pre 1 1 4 3.649e-08 1.00 1.00 0.02 0.00 0.00 0.00 0.97 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190718y XML 2019/07/18 14:35:12.067865 1 Pre 1 1 4 3.649e-08 1.00 1.00 0.02 0.00 0.00 0.00 0.97 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190706ai XML 2019/07/06 22:26:41.344727 3 Upd 1 1 0 1.901e-09 0.00 0.00 0.00 0.00 0.98 0.00 0.01 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190707q XML 2019/07/07 09:33:26.181226 3 Upd 1 1 1 5.265e-12 0.00 0.00 0.00 0.00 0.99 0.00 0.00 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190707q XML 2019/07/07 09:33:26.181226 2 Ini 1 1 1 5.265e-12 0.00 0.00 0.00 0.00 0.99 0.00 0.00 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190707q XML 2019/07/07 09:33:26.181226 1 Pre 1 1 1 5.265e-12 0.00 0.00 0.00 0.00 0.99 0.00 0.00 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190706ai XML 2019/07/06 22:26:41.344727 2 Ini 1 1 0 1.901e-09 0.00 0.00 0.00 0.00 0.98 0.00 0.01 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190706ai XML 2019/07/06 22:26:41.344727 1 Pre 1 1 0 1.901e-09 0.00 0.00 0.00 0.00 0.98 0.00 0.01 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190701ah XML 2019/07/01 20:33:06.577637 3 Upd 1 1 0 1.916e-08 0.00 0.00 0.00 0.00 0.93 0.00 0.06 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190701ah XML 2019/07/01 20:33:06.577637 2 Ini 1 1 0 1.916e-08 0.00 0.00 0.00 0.00 0.93 0.00 0.06 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190701ah XML 2019/07/01 20:33:06.577637 1 Pre 1 1 0 1.916e-08 0.00 0.00 0.00 0.00 0.93 0.00 0.06 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190630ag XML 2019/06/30 18:52:05.179550 2 Ini 1 1 4 1.435e-13 0.00 0.00 0.00 0.00 0.94 0.05 0.00 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190630ag XML 2019/06/30 18:52:05.179550 1 Pre 1 1 4 1.435e-13 0.00 0.00 0.00 0.00 0.94 0.05 0.00 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190602aq XML 2019/06/02 17:59:27.089355 2 Ini 1 1 0 1.901e-09 0.00 0.00 0.00 0.00 0.99 0.00 0.00 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190602aq XML 2019/06/02 17:59:27.089355 1 Pre 1 1 0 1.901e-09 0.00 0.00 0.00 0.00 0.99 0.00 0.00 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190524q XML 2019/05/24 04:52:06.678669 2 Ret LVC Retraction of a previous Alert. NOTE: This is a RETRACTION. The trigger is no longer considered to be astrophysical in origin. This event is an OpenAlert.

S190524q XML 2019/05/24 04:52:06.678669 1 Pre 1 1 4 6.971e-09 1.00 1.00 0.29 0.00 0.00 0.00 0.70 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190521g XML 2019/05/21 03:02:29.447266 3 Upd 1 1 0 3.802e-09 0.00 0.00 0.00 0.00 0.96 0.00 0.03 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190521g XML 2019/05/21 03:02:29.447266 2 Ini 1 1 0 3.802e-09 0.00 0.00 0.00 0.00 0.96 0.00 0.03 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190521g XML 2019/05/21 03:02:29.447266 1 Pre 1 1 0 3.802e-09 0.00 0.00 0.00 0.00 0.96 0.00 0.03 SKYMAP EVENT LVC Super Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190521r XML 2019/05/21 07:43:59.463379 2 Ini 1 1 0 3.168e-10 0.00 0.00 0.00 0.00 0.99 0.00 0.00 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190521r XML 2019/05/21 07:43:59.463379 1 Pre 1 1 0 3.168e-10 0.00 0.00 0.00 0.00 0.99 0.00 0.00 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190521g XML 2019/05/21 03:02:29.447266 2 Ini 1 1 0 3.802e-09 0.00 0.00 0.00 0.00 0.96 0.00 0.03 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190521g XML 2019/05/21 03:02:29.447266 1 Pre 1 1 0 3.802e-09 0.00 0.00 0.00 0.00 0.96 0.00 0.03 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190519bj XML 2019/05/19 15:35:44.397949 2 Ini 1 1 0 5.702e-09 0.00 0.00 0.00 0.00 0.95 0.00 0.04 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190518bb XML 2019/05/18 19:19:21.922655 2 Ret LVC Retraction of a previous Alert. NOTE: This is a RETRACTION. The trigger is no longer considered to be astrophysical in origin. This event is an OpenAlert.

S190518bb XML 2019/05/18 19:19:21.922655 1 Pre 1 1 4 1.004e-08 1.00 1.00 0.75 0.00 0.00 0.00 0.24 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190512at XML 2019/05/12 18:07:14.422363 3 Upd 1 1 0 1.901e-09 0.00 0.00 0.00 0.00 0.98 0.00 0.01 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190517h XML 2019/05/17 05:51:01.830582 2 Ini 1 1 4 2.373e-09 0.00 0.00 0.00 0.00 0.98 0.01 0.00 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190517h XML 2019/05/17 05:51:01.830582 1 Pre 1 1 4 2.373e-09 0.00 0.00 0.00 0.00 0.98 0.01 0.00 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190513bm XML 2019/05/13 20:54:28.747089 2 Ini 1 1 4 3.734e-13 0.00 0.00 0.00 0.00 0.94 0.05 0.00 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190513bm XML 2019/05/13 20:54:28.747089 1 Pre 1 1 4 3.734e-13 0.00 0.00 0.00 0.00 0.94 0.05 0.00 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190512at XML 2019/05/12 18:07:14.422363 2 Ini 1 1 0 1.901e-09 0.00 0.00 0.00 0.00 0.98 0.00 0.01 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190510g XML 2019/05/10 02:59:39.291636 5 Upd 1 1 4 8.835e-09 1.00 1.00 0.42 0.00 0.00 0.00 0.57 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190510g XML 2019/05/10 02:59:39.291636 4 Upd 1 1 4 8.429e-10 1.00 1.00 0.85 0.00 0.00 0.00 0.14 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190510g XML 2019/05/10 02:59:39.291636 3 Upd 1 1 4 8.429e-10 1.00 1.00 0.97 0.00 0.00 0.00 0.02 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190510g XML 2019/05/10 02:59:39.291636 2 Ini 1 1 4 8.429e-10 1.00 1.00 0.97 0.00 0.00 0.00 0.02 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190510g XML 2019/05/10 02:59:39.291636 1 Pre 1 1 4 8.429e-10 1.00 1.00 0.97 0.00 0.00 0.00 0.02 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190503bf XML 2019/05/03 18:54:04.294490 2 Ini 1 1 4 1.636e-09 0.00 0.00 0.00 0.00 0.96 0.03 0.00 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190503bf XML 2019/05/03 18:54:04.294490 1 Pre 1 1 4 1.636e-09 0.00 0.00 0.00 0.00 0.96 0.03 0.00 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190421ar XML 2019/04/21 21:38:56.250977 3 Upd 1 1 0 1.489e-08 0.00 0.00 0.00 0.00 0.96 0.00 0.03 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190426c XML 2019/04/26 15:21:55.336540 5 Upd 1 1 4 1.947e-08 1.00 1.00 0.49 0.12 0.00 0.23 0.14 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190426c XML 2019/04/26 15:21:55.336540 4 Upd 1 1 4 1.947e-08 1.00 1.00 0.49 0.12 0.00 0.23 0.14 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190426c XML 2019/04/26 15:21:55.336540 3 Upd 1 1 4 1.947e-08 1.00 1.00 0.49 0.12 0.00 0.23 0.14 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190426c XML 2019/04/26 15:21:55.336540 2 Ini 1 1 4 1.947e-08 1.00 1.00 0.49 0.12 0.00 0.23 0.14 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190426c XML 2019/04/26 15:21:55.336540 1 Pre 1 1 4 1.947e-08 1.00 1.00 0.49 0.12 0.00 0.23 0.14 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190425z XML 2019/04/25 08:18:05.017147 2 Upd 1 1 4 4.538e-13 1.00 1.00 0.99 0.00 0.00 0.00 0.00 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190425z XML 2019/04/25 08:18:05.017147 1 Ini 1 1 4 4.538e-13 1.00 1.00 0.99 0.00 0.00 0.00 0.00 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190421ar XML 2019/04/21 21:38:56.250977 2 Ini 1 1 0 1.489e-08 0.00 0.00 0.00 0.00 0.04 0.00 0.95 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190421ar XML 2019/04/21 21:38:56.250977 1 Pre 1 1 0 1.489e-08 0.00 0.00 0.00 0.00 0.04 0.00 0.95 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190405ar XML 2019/04/05 16:01:30.863646 2 Ret LVC Retraction of a previous Alert. NOTE: This is a RETRACTION. The trigger is no longer considered to be astrophysical in origin. This event is an OpenAlert.

S190405ar XML 2019/04/05 16:01:30.863646 1 Upd 1 1 4 2.141e-04 1.00 1.00 0.00 0.00 0.00 0.00 0.99 SKYMAP EVENT LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190412m XML 2019/04/12 05:30:44.165622 2 Ini 1 1 4 1.683e-27 0.00 0.12 0.00 0.00 1.00 0.00 0.00 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190412m XML 2019/04/12 05:30:44.165622 1 Pre 1 1 4 1.683e-27 0.00 0.12 0.00 0.00 1.00 0.00 0.00 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190408an XML 2019/04/08 18:18:02.288180 2 Ini 1 1 4 2.811e-18 0.00 0.12 0.00 0.00 1.00 0.00 0.00 SKYMAP EVENT LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190408an XML 2019/04/08 18:18:02.288180 1 Pre 1 1 4 2.811e-18 0.00 0.12 0.00 0.00 1.00 0.00 0.00 SKYMAP EVENT LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.

**LVC EVENTS (in the Public O3 era)**
EVENT	OBSERVATION
		CBC	Burst	Cpart	URLs
EventNum	Date	Time UT	S E Q #	Notice Type	Group Type	Search Type	Pipeline Type	FAR	NS	REMN	BNS	NSBH	BBH	Mass Gap	Terres	Fluence	Central Freq	Duration	SKYMAP	Event	Comments
S190720a XML	2019/07/20	00:08:36.704102	3	Upd	1	1	0	3.802e-09	0.00	0.00	0.00	0.00	0.98	0.00	0.01				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190720a XML	2019/07/20	00:08:36.704102	2	Ini	1	1	0	3.802e-09	0.00	0.00	0.00	0.00	0.98	0.00	0.01				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190720a XML	2019/07/20	00:08:36.747070	1	Pre	1	3	0	2.248e-09	0.00	0.00	0.00	0.00	0.99	0.00	0.00				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190630ag XML	2019/06/30	18:52:05.179550	3	Upd	1	1	4	1.435e-13	0.00	0.00	0.00	0.00	0.94	0.05	0.00				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190718y XML	2019/07/18	14:35:12.067865	3	Ini	1	1	4	3.649e-08	1.00	1.00	0.02	0.00	0.00	0.00	0.97				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190718y XML	2019/07/18	14:35:12.067865	2	Pre	1	1	4	3.649e-08	1.00	1.00	0.02	0.00	0.00	0.00	0.97				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190718y XML	2019/07/18	14:35:12.067865	1	Pre	1	1	4	3.649e-08	1.00	1.00	0.02	0.00	0.00	0.00	0.97				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190706ai XML	2019/07/06	22:26:41.344727	3	Upd	1	1	0	1.901e-09	0.00	0.00	0.00	0.00	0.98	0.00	0.01				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190707q XML	2019/07/07	09:33:26.181226	3	Upd	1	1	1	5.265e-12	0.00	0.00	0.00	0.00	0.99	0.00	0.00				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190707q XML	2019/07/07	09:33:26.181226	2	Ini	1	1	1	5.265e-12	0.00	0.00	0.00	0.00	0.99	0.00	0.00				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190707q XML	2019/07/07	09:33:26.181226	1	Pre	1	1	1	5.265e-12	0.00	0.00	0.00	0.00	0.99	0.00	0.00				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190706ai XML	2019/07/06	22:26:41.344727	2	Ini	1	1	0	1.901e-09	0.00	0.00	0.00	0.00	0.98	0.00	0.01				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190706ai XML	2019/07/06	22:26:41.344727	1	Pre	1	1	0	1.901e-09	0.00	0.00	0.00	0.00	0.98	0.00	0.01				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190701ah XML	2019/07/01	20:33:06.577637	3	Upd	1	1	0	1.916e-08	0.00	0.00	0.00	0.00	0.93	0.00	0.06				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190701ah XML	2019/07/01	20:33:06.577637	2	Ini	1	1	0	1.916e-08	0.00	0.00	0.00	0.00	0.93	0.00	0.06				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190701ah XML	2019/07/01	20:33:06.577637	1	Pre	1	1	0	1.916e-08	0.00	0.00	0.00	0.00	0.93	0.00	0.06				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190630ag XML	2019/06/30	18:52:05.179550	2	Ini	1	1	4	1.435e-13	0.00	0.00	0.00	0.00	0.94	0.05	0.00				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190630ag XML	2019/06/30	18:52:05.179550	1	Pre	1	1	4	1.435e-13	0.00	0.00	0.00	0.00	0.94	0.05	0.00				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190602aq XML	2019/06/02	17:59:27.089355	2	Ini	1	1	0	1.901e-09	0.00	0.00	0.00	0.00	0.99	0.00	0.00				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190602aq XML	2019/06/02	17:59:27.089355	1	Pre	1	1	0	1.901e-09	0.00	0.00	0.00	0.00	0.99	0.00	0.00				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190524q XML	2019/05/24	04:52:06.678669	2	Ret																	LVC Retraction of a previous Alert. NOTE: This is a RETRACTION. The trigger is no longer considered to be astrophysical in origin. This event is an OpenAlert.
S190524q XML	2019/05/24	04:52:06.678669	1	Pre	1	1	4	6.971e-09	1.00	1.00	0.29	0.00	0.00	0.00	0.70				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190521g XML	2019/05/21	03:02:29.447266	3	Upd	1	1	0	3.802e-09	0.00	0.00	0.00	0.00	0.96	0.00	0.03				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190521g XML	2019/05/21	03:02:29.447266	2	Ini	1	1	0	3.802e-09	0.00	0.00	0.00	0.00	0.96	0.00	0.03				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190521g XML	2019/05/21	03:02:29.447266	1	Pre	1	1	0	3.802e-09	0.00	0.00	0.00	0.00	0.96	0.00	0.03				SKYMAP	EVENT	LVC Super Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190521r XML	2019/05/21	07:43:59.463379	2	Ini	1	1	0	3.168e-10	0.00	0.00	0.00	0.00	0.99	0.00	0.00				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190521r XML	2019/05/21	07:43:59.463379	1	Pre	1	1	0	3.168e-10	0.00	0.00	0.00	0.00	0.99	0.00	0.00				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190521g XML	2019/05/21	03:02:29.447266	2	Ini	1	1	0	3.802e-09	0.00	0.00	0.00	0.00	0.96	0.00	0.03				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190521g XML	2019/05/21	03:02:29.447266	1	Pre	1	1	0	3.802e-09	0.00	0.00	0.00	0.00	0.96	0.00	0.03				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190519bj XML	2019/05/19	15:35:44.397949	2	Ini	1	1	0	5.702e-09	0.00	0.00	0.00	0.00	0.95	0.00	0.04				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190518bb XML	2019/05/18	19:19:21.922655	2	Ret																	LVC Retraction of a previous Alert. NOTE: This is a RETRACTION. The trigger is no longer considered to be astrophysical in origin. This event is an OpenAlert.
S190518bb XML	2019/05/18	19:19:21.922655	1	Pre	1	1	4	1.004e-08	1.00	1.00	0.75	0.00	0.00	0.00	0.24				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190512at XML	2019/05/12	18:07:14.422363	3	Upd	1	1	0	1.901e-09	0.00	0.00	0.00	0.00	0.98	0.00	0.01				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190517h XML	2019/05/17	05:51:01.830582	2	Ini	1	1	4	2.373e-09	0.00	0.00	0.00	0.00	0.98	0.01	0.00				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190517h XML	2019/05/17	05:51:01.830582	1	Pre	1	1	4	2.373e-09	0.00	0.00	0.00	0.00	0.98	0.01	0.00				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190513bm XML	2019/05/13	20:54:28.747089	2	Ini	1	1	4	3.734e-13	0.00	0.00	0.00	0.00	0.94	0.05	0.00				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190513bm XML	2019/05/13	20:54:28.747089	1	Pre	1	1	4	3.734e-13	0.00	0.00	0.00	0.00	0.94	0.05	0.00				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190512at XML	2019/05/12	18:07:14.422363	2	Ini	1	1	0	1.901e-09	0.00	0.00	0.00	0.00	0.98	0.00	0.01				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190510g XML	2019/05/10	02:59:39.291636	5	Upd	1	1	4	8.835e-09	1.00	1.00	0.42	0.00	0.00	0.00	0.57				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190510g XML	2019/05/10	02:59:39.291636	4	Upd	1	1	4	8.429e-10	1.00	1.00	0.85	0.00	0.00	0.00	0.14				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190510g XML	2019/05/10	02:59:39.291636	3	Upd	1	1	4	8.429e-10	1.00	1.00	0.97	0.00	0.00	0.00	0.02				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190510g XML	2019/05/10	02:59:39.291636	2	Ini	1	1	4	8.429e-10	1.00	1.00	0.97	0.00	0.00	0.00	0.02				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190510g XML	2019/05/10	02:59:39.291636	1	Pre	1	1	4	8.429e-10	1.00	1.00	0.97	0.00	0.00	0.00	0.02				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190503bf XML	2019/05/03	18:54:04.294490	2	Ini	1	1	4	1.636e-09	0.00	0.00	0.00	0.00	0.96	0.03	0.00				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190503bf XML	2019/05/03	18:54:04.294490	1	Pre	1	1	4	1.636e-09	0.00	0.00	0.00	0.00	0.96	0.03	0.00				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190421ar XML	2019/04/21	21:38:56.250977	3	Upd	1	1	0	1.489e-08	0.00	0.00	0.00	0.00	0.96	0.00	0.03				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190426c XML	2019/04/26	15:21:55.336540	5	Upd	1	1	4	1.947e-08	1.00	1.00	0.49	0.12	0.00	0.23	0.14				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190426c XML	2019/04/26	15:21:55.336540	4	Upd	1	1	4	1.947e-08	1.00	1.00	0.49	0.12	0.00	0.23	0.14				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190426c XML	2019/04/26	15:21:55.336540	3	Upd	1	1	4	1.947e-08	1.00	1.00	0.49	0.12	0.00	0.23	0.14				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190426c XML	2019/04/26	15:21:55.336540	2	Ini	1	1	4	1.947e-08	1.00	1.00	0.49	0.12	0.00	0.23	0.14				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190426c XML	2019/04/26	15:21:55.336540	1	Pre	1	1	4	1.947e-08	1.00	1.00	0.49	0.12	0.00	0.23	0.14				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190425z XML	2019/04/25	08:18:05.017147	2	Upd	1	1	4	4.538e-13	1.00	1.00	0.99	0.00	0.00	0.00	0.00				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190425z XML	2019/04/25	08:18:05.017147	1	Ini	1	1	4	4.538e-13	1.00	1.00	0.99	0.00	0.00	0.00	0.00				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190421ar XML	2019/04/21	21:38:56.250977	2	Ini	1	1	0	1.489e-08	0.00	0.00	0.00	0.00	0.04	0.00	0.95				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190421ar XML	2019/04/21	21:38:56.250977	1	Pre	1	1	0	1.489e-08	0.00	0.00	0.00	0.00	0.04	0.00	0.95				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
S190405ar XML	2019/04/05	16:01:30.863646	2	Ret																	LVC Retraction of a previous Alert. NOTE: This is a RETRACTION. The trigger is no longer considered to be astrophysical in origin. This event is an OpenAlert.
S190405ar XML	2019/04/05	16:01:30.863646	1	Upd	1	1	4	2.141e-04	1.00	1.00	0.00	0.00	0.00	0.00	0.99				SKYMAP	EVENT	LVC Super Updated Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190412m XML	2019/04/12	05:30:44.165622	2	Ini	1	1	4	1.683e-27	0.00	0.12	0.00	0.00	1.00	0.00	0.00				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190412m XML	2019/04/12	05:30:44.165622	1	Pre	1	1	4	1.683e-27	0.00	0.12	0.00	0.00	1.00	0.00	0.00				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190408an XML	2019/04/08	18:18:02.288180	2	Ini	1	1	4	2.811e-18	0.00	0.12	0.00	0.00	1.00	0.00	0.00				SKYMAP	EVENT	LVC Super Initial Skymap -- a location probability map. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
S190408an XML	2019/04/08	18:18:02.288180	1	Pre	1	1	4	2.811e-18	0.00	0.12	0.00	0.00	1.00	0.00	0.00				SKYMAP	EVENT	LVC Preliminary Trigger Alert. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.

LVC EVENTS (from the Private Phase O1 & O2 Era)
EVENT OBSERVATION

CBC Burst Counterpart URLs

EventNum Date Time UT SEQ# NoticeType FAR ChirpMass Eta MaxDist Fluence CentralFreq Duration RA DEC Intens LPM Event Comments

G298936 2017/08/23 13:13:58.517903 6 Update 1.739e-11 LPM EVENT LVC Updated Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G298048 2017/08/17 12:41:04.445710 2 Update 3.478e-12 LPM EVENT LVC Updated Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event.

G298048 2017/08/17 12:41:04.445710 1 Initial 3.478e-12 LPM EVENT LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event.

G297595 2017/08/14 10:30:43.526780 10 Update 3.831e-13 LPM EVENT LVC Updated Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.

G297595 2017/08/14 10:30:43.526780 9 Update 3.831e-13 LPM EVENT LVC Updated Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.

G297595 2017/08/14 10:30:43.526780 8 Update 3.831e-13 LPM EVENT LVC Updated Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.

G297595 2017/08/14 10:30:43.526780 1 Initial 3.831e-13 LPM EVENT LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.

G296853 2017/08/09 08:28:21.746663 3 Initial 7.514e-09 LPM EVENT LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G268556 2017/01/04 10:11:59.599121 Initial 6.104e-08 LPM EVENT LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G268556 2017/01/04 10:11:59.599121 Initial 6.104e-08 LPM EVENT LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G268556 2017/01/04 10:11:59.599121 Initial 6.104e-08 LPM EVENT LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G268556 2017/01/04 10:11:59.599121 Initial 6.104e-08 -1.0000 -1.000 -1.00 LPM EVENT LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G268556 2017/01/04 10:11:59.599121 Initial 6.104e-08 -1.0000 -1.000 -1.00 LPM EVENT LVC Initial Skymap -- a location probability map. This is for Team_Internal use/distribution. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G268556 2017/01/04 10:11:59.599121 Preliminary 6.104e-08 -1.0000 -1.000 -1.00 LVC Trigger Alert. This is for Team_Internal use/distribution. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G268556 2017/01/04 10:11:59.599121 Preliminary 6.104e-08 -1.0000 -1.000 -1.00 LVC Trigger Alert. This is for Team_Internal use/distribution. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G211117 2015/12/27 03:38:53.647758 Preliminary 3.170e-10 -1.0000 -1.000 -1.00 LVC Trigger Alert. This is for Team_Internal use/distribution. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G194575 2015/10/22 13:33:19.942353 Initial 9.656e-08 -1.0000 -1.000 -1.00 LPM EVENT LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. NOTE: This is a RETRACTION. The trigger is no longer considered to be astrophysical in origin.

G194575 2015/10/22 13:33:19.942353 Initial 9.656e-08 -1.0000 -1.000 -1.00 LPM EVENT LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G194575 2015/10/22 13:33:19.942353 Initial 9.656e-08 -1.0000 -1.000 -1.00 LPM EVENT LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G194575 2015/10/22 13:33:19.942353 Initial 9.656e-08 -1.0000 -1.000 -1.00 LPM EVENT LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G194575 2015/10/22 13:33:19.942353 Initial 9.656e-08 -1.0000 -1.000 -1.00 LPM EVENT LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G194575 2015/10/22 13:33:19.942353 Initial 9.656e-08 -1.0000 -1.000 -1.00 LPM EVENT LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G194575 2015/10/22 13:33:19.942353 Preliminary 9.656e-08 -1.0000 -1.000 -1.00 LVC Trigger Alert. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G194575 2015/10/22 13:33:19.942353 Preliminary 9.656e-08 -1.0000 -1.000 -1.00 LVC Trigger Alert. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G194575 2015/10/22 13:33:19.942353 Initial 9.656e-08 -1.0000 -1.000 -1.00 LPM EVENT LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G194575 2015/10/22 13:33:19.942353 Initial 9.656e-08 -1.0000 -1.000 -1.00 LPM EVENT LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

G194575 2015/10/22 13:33:19.942353 Preliminary 9.656e-08 -1.0000 -1.000 -1.00 LVC Trigger Alert. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

**LVC EVENTS (from the Private Phase O1 & O2 Era)**
EVENT	OBSERVATION
		CBC	Burst	Counterpart	URLs
EventNum	Date	Time UT	SEQ#	NoticeType	FAR	ChirpMass	Eta	MaxDist	Fluence	CentralFreq	Duration	RA	DEC	Intens	LPM	Event	Comments
G298936	2017/08/23	13:13:58.517903	6	Update	1.739e-11										LPM	EVENT	LVC Updated Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G298048	2017/08/17	12:41:04.445710	2	Update	3.478e-12										LPM	EVENT	LVC Updated Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event.
G298048	2017/08/17	12:41:04.445710	1	Initial	3.478e-12										LPM	EVENT	LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event.
G297595	2017/08/14	10:30:43.526780	10	Update	3.831e-13										LPM	EVENT	LVC Updated Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
G297595	2017/08/14	10:30:43.526780	9	Update	3.831e-13										LPM	EVENT	LVC Updated Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
G297595	2017/08/14	10:30:43.526780	8	Update	3.831e-13										LPM	EVENT	LVC Updated Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
G297595	2017/08/14	10:30:43.526780	1	Initial	3.831e-13										LPM	EVENT	LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. VIRGO Observatory contributed to this candidate event.
G296853	2017/08/09	08:28:21.746663	3	Initial	7.514e-09										LPM	EVENT	LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G268556	2017/01/04	10:11:59.599121		Initial	6.104e-08										LPM	EVENT	LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G268556	2017/01/04	10:11:59.599121		Initial	6.104e-08										LPM	EVENT	LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G268556	2017/01/04	10:11:59.599121		Initial	6.104e-08										LPM	EVENT	LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G268556	2017/01/04	10:11:59.599121		Initial	6.104e-08	-1.0000	-1.000	-1.00							LPM	EVENT	LVC Initial Skymap -- a location probability map. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G268556	2017/01/04	10:11:59.599121		Initial	6.104e-08	-1.0000	-1.000	-1.00							LPM	EVENT	LVC Initial Skymap -- a location probability map. This is for Team_Internal use/distribution. This event has been vetted by a human. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G268556	2017/01/04	10:11:59.599121		Preliminary	6.104e-08	-1.0000	-1.000	-1.00									LVC Trigger Alert. This is for Team_Internal use/distribution. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G268556	2017/01/04	10:11:59.599121		Preliminary	6.104e-08	-1.0000	-1.000	-1.00									LVC Trigger Alert. This is for Team_Internal use/distribution. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G211117	2015/12/27	03:38:53.647758		Preliminary	3.170e-10	-1.0000	-1.000	-1.00									LVC Trigger Alert. This is for Team_Internal use/distribution. This event is an OpenAlert. LIGO-Hanford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G194575	2015/10/22	13:33:19.942353		Initial	9.656e-08	-1.0000	-1.000	-1.00							LPM	EVENT	LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event. NOTE: This is a RETRACTION. The trigger is no longer considered to be astrophysical in origin.
G194575	2015/10/22	13:33:19.942353		Initial	9.656e-08	-1.0000	-1.000	-1.00							LPM	EVENT	LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G194575	2015/10/22	13:33:19.942353		Initial	9.656e-08	-1.0000	-1.000	-1.00							LPM	EVENT	LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G194575	2015/10/22	13:33:19.942353		Initial	9.656e-08	-1.0000	-1.000	-1.00							LPM	EVENT	LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G194575	2015/10/22	13:33:19.942353		Initial	9.656e-08	-1.0000	-1.000	-1.00							LPM	EVENT	LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G194575	2015/10/22	13:33:19.942353		Initial	9.656e-08	-1.0000	-1.000	-1.00							LPM	EVENT	LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G194575	2015/10/22	13:33:19.942353		Preliminary	9.656e-08	-1.0000	-1.000	-1.00									LVC Trigger Alert. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G194575	2015/10/22	13:33:19.942353		Preliminary	9.656e-08	-1.0000	-1.000	-1.00									LVC Trigger Alert. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G194575	2015/10/22	13:33:19.942353		Initial	9.656e-08	-1.0000	-1.000	-1.00							LPM	EVENT	LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G194575	2015/10/22	13:33:19.942353		Initial	9.656e-08	-1.0000	-1.000	-1.00							LPM	EVENT	LVC Initial Skymap -- a location probability map. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.
G194575	2015/10/22	13:33:19.942353		Preliminary	9.656e-08	-1.0000	-1.000	-1.00									LVC Trigger Alert. LIGO-Handford Observatory contributed to this candidate event. LIGO-Livingston Observatory contributed to this candidate event.

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This file is continuously modified by the gcn program; see the timestamp of the most recent trigger entry in the table.

This file was last modified by a human on 22-Jul-19