Script Summary: Insert Simbad/NED/HEASARC queries near GCN coordinate values
This script searches for "GCN" style gamma-ray burst position coordinates (GRB_RA and GRB_DEC tags), and inserts queries to astronomical databases Simbad, NED, and HEASARC for the given position. The search radius is 10 arcminutes. See http://gcn.gsfc.nasa.gov/ for information about the Gamma-ray Coordinates Network. Update 23 June 2007 for the new version of Simbad.
