GCN: The Gamma-ray Coordinates Network (TAN: Transient Astronomy Network)
Posted 25 Jul 2020:
The power was out for the key buildings handling the center-wide Internet.
This started at 14:02 UT and resumed connections and distributions at 17:07 UT.
Posted 23 Mar 2020 (updated 27 Mar 2020, 04 Apr 2020, 03 May 2020, 08 May 2020):
Due to the policies and constraints during the CoronaVirus pandemic,
my response to your requests and questions may not be as fast as normal.
Example: changes to your site_configuration may take several days
of having to use a remote access connection (all Goddard personnel must now work from home).
For "essential personnel" the access time is still 24/7 but the duration is only ~4 hrs/week.
The GCN system distributes:
These two functions provide a one-stop shopping network for follow-up sites
and GRB and transient researchers.
Locations of GRBs and other Transients (the Notices) detected by spacecraft (most in real-time while the burst is still bursting and
others are that delayed due to telemetry down-link delays).
Reports of follow-up observations (the Circulars) made by
ground-based and space-based optical, radio, X-ray, TeV, and other particle observers.
The GCN system can be explored using the links above and below.
Invitation to subscribe to the Notices or Circulars here. unsubscribe here.
Make a modification to an existing Notices site configuration here.
Invitation to producers to incorporate your events into GCN here.
The physical GCN network. (Click to enlarge.)