GCN: The Gamma-ray Coordinates Network (TAN: Transient Astronomy Network)
Posted 23 Mar 2020 (updated 27 Mar 2020, 04 Apr 2020).
Due the policies and constraints during the CoronaVirus pandemic,
my response to your questions may not be as fast as normal.
Also, changes to your site_configuration may not be possible due difficulties
of having to use a remote access connection (all Goddard personnel must now work from home).
The access response time to the computer at Goddard has been lowered from "hours to a whole day" to "a couple hours (24/7)".
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.)