GCN: The Gamma-ray Coordinates Network (TAN: Transient Astronomy Network)
LVC events are in the public domain.
The LVC_PRELIMINARY, _INITIAL, _UPDATE, and _RETRACTION notice types are available to the public (the private phase is over).
Circulars involving LVC events are to be published on the original Circulars method (not the LVC-private subnet).
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.)