TO: All GCN Notice recipients RE: Fermi-LAT Offline Notice type is available DT: 10 Feb 2014 INTRODUCTION: The Fermi-LAT Team is now producing a new notice type: Fermi-LAT OFFLINE. It contains localizations of GRBs (and other transients) detected by LAT with off-line, human-in-the-loop processing. OCCURRANCE RATE: There will be about 10 LAT_Offline Notices per year. TIME DELAY: Because there is human involvment in the data analysis, the time delays for this notice type will range from 0.5 to 24 hours. LOCATION ERROR: The location uncertainties are in the 0.1-2.0 deg range (radius, 90% containment). ACTION ITEM: If, after reviewing the information below, you want to receive these LAT_Offline notices, please send me a request to have them enabled. You can do this by forwarding this email (which has your sitename identifier) to sbarthel@milkyway.gsfc.nasa.gov . OR You can go to http://gcn.gsfc.nasa.gov/gcn/config_builder.html and select "#2 Modify an existing config". You can also take this opportunity to make other changes to your configuration. ARCHIVE STORAGE: The GCN/FERMI (both GBM and LAT) Notices are archived within the GCN website in the Table of FERMI Notices: http://gcn.gsfc.nasa.gov/gcn/fermi_grbs.html MORE INFORMATION: Can be found at: http://gcn.gsfc.nasa.gov/gcn/fermi.html NOTICE EXAMPLE: Here are examples of a full-format email Notice: //////////////// FERMI-LAT_OFFLINE e-mail format /////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Fri 06 Feb 09 15:55:04 UT NOTICE_TYPE: Fermi-LAT Offline Position TRIGGER_NUM: 254280393 GRB_RA: 257.426d {+17h 09m 42s} (J2000), 257.581d {+17h 10m 19s} (current), 256.573d {+17h 06m 17s} (1950) GRB_DEC: -38.114d {-38d 06' 49"} (J2000), -38.125d {-38d 07' 28"} (current), -38.051d {-38d 03' 04"} (1950) GRB_ERROR: 60.00 [arcmin radius, statistical only] GRB_DATE: 14853 TJD; 22 DOY; 09/01/22 GRB_TIME: 5191.78 SOD {01:26:31.78} UT TRIGGER_ID: 0x0 SUN_POSTN: 320.44d {+21h 21m 45s} -15.44d {-15d 26' 08"} SUN_DIST: 59.32 [deg] Sun_angle= 4.2 [hr] (West of Sun) MOON_POSTN: 98.33d {+06h 33m 20s} +25.88d {+25d 52' 56"} MOON_DIST: 158.65 [deg] MOON_ILLUM: 88 [%] GAL_COORDS: 348.22, 1.10 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 259.78,-15.12 [deg] ecliptic lon,lat of the burst (or transient) COMMENTS: Fermi LAT Ground-Trigger position. COMMENTS: This Notice was ground-generated -- not flight-generated. COMMENTS: The spectrum is very hard. COMMENTS: The lightcurve shows the event to be ~100 sec long. COMMENTS: This is a GRB. //////////////////////////////////////////////////////////////////////////// The socket packets contents can be found at: http://gcn.gsfc.nasa.gov/gcn/sock_pkt_def_doc.html REMINDER OF RECENT ADDITIONS TO GCN: In case you have missed them, here is a brief list of the most recent additions to the GCN system. You might consider signing up for these Notice types as well. The full announcements/descriptions for each of these can be found at: http://gcn.gsfc.nasa.gov/gcn/whats_new.html SUZAKU_LIGHTCURVE (Feb 2013) // Lightcurves from Suzaku-WAM IPN_RAW resumes (Aug 2012) // IPN Team resumes producing the IPN_RAW notices SWIFT_BAT_SUB_SUB_THRESHOLD (May 2012) // Swift-BAT Triggers with very low significance; use for temporal coincidences VOEvent Direct Server (Mar 2012) // Added 3 VOEvent servers to allow for direct distribution of VOEvents FERMI_LAT_MON/_TRANS (Aug 2011) // Flare-ups from known sources monitored by Fermi-LAT & non-GRB transients FERMI_LAT_GND (Aug 2011) // Automated ground processing to get GRB positions MOA (Aug 2011) // Locations of up-coming gravitational lensing events DOW_TOD (Jun 2011) // Preprogrammed notices at specific days-of-week & time-of-day FERMI_GBM FIN_POS (Jun 2011) // Human-in-the-loop ground-based analysis MAXI_UNKNOWN/_KNOWN (Apr 2011) // Unknown transients & Flare-ups from Known sources INTEGRAL_WEAK (Feb 2011) // Subthreshold detections by INTEGRAL SWIFT_BAT_MONITOR (Feb 2010) // Flare-ups from known sources monitored by Swift-BAT Sincerely, Scott Scott Barthelmy NASA-GSFC, Code 661, Greenbelt, MD 20771 PHONE: 301-286-3106 (office) CELL: 301-346-3733 EMAIL: scott@lheamail.gsfc.nasa.gov PAGER: 3013463733@cingularme.com WEB: http://gcn.gsfc.nasa.gov/gcn