HEAD Division Meeting 1999, April 1999
Session 17. Missions and Instruments
Poster, Tuesday, April 13, 1999, 8:30am-6:02pm, Gold Room

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[17.06] The GRB Coordinates Network (GCN): A Status Report

Scott D. Barthelmy (NASA-GSFC (USRA)), Paul Butterworth (NASA-GSFC (RSTX)), Thomas L. Cline, Neil Gehrels (NASA-GSFC)

The GRB Coordinates Network (GCN) was designed to deliver locations of GRBs to instruments and observers in real-time (a few seconds) -- while the burst is still bursting -- so that they can make multi-band simultaneous follow-up observations. This goal has recently been realized with the optical detection of the burst counterpart for GRB990123 by the ROTSE-I (U.Mich/LANL) instrument. A description of the function and capabilities of the GCN system will be given, plus a description of the current suite of instruments and observation programs being conducted by follow-up teams around the word using GCN information. The types of GRB location information available plus the distribution methods will be described. Complimenting the real-time location notices, the GCN Circulars allow the follow-up observers to share the results of their observation in real-time with the community. The GCN Circular system will also be described. Finally, a description of the requirements and an open invitation to become a member of the GCN system (location notices and/or circulars) will be given.

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