About the GCN/TAN A Brief Description There are two parts to the GRB Coordinates Network (GCN) (TAN: Transient Astronomy Network): (1) the real-time (and near real-time) distribution of GRB locations, images, spectra, & lightcurves, (in < 2sec inside GCN) detected by various spacecraft (Swift, Fermi, MAXI, INTEGRAL, IPN, etc), and (2) the distribution of follow-up observation reports submitted by the GRB/transient community. INVITATION to Join/Subscribe (Notices, Circulars, Reports) An open invitation for GRB researchers and institutions to join GCN/TAN. For people wishing to receive the GCN/TAN Notices, the required pieces of information to set up an entry in the "sites.cfg" file are listed. And for those individuals wanting to receive/submit GCN Circulars, those requirements are also listed. Scientific Motivation and General Background Information on GRBs The history and the importance of research into the nature of Gamma-Ray Bursts. GCN/TAN Sites and Links The current observing sites participating in the GCN/TAN system are listed. Links are provided when available. Who we are The people that built and run the GCN/TAN system. What's new    (07 Jan 17) Brief descriptions of new capabilities and operational changes within the GCN/TAN system. Technical Details A Full Description of the GCN/TAN System: The Basic System Description, The Various Sources of GRB/transient Locations, Distribution Methods, Coordinates Accuracy, Improvements Made to the System, Future Improvements to the System, Detailed Technical Descriptions and Specifications, Related Services and Activities, Real-time Aspects of these Webpages. Mission-Instrument Notices at-a-Glance Clicking the links will take you to the Description/Documentation pages and to the tables of archived past Notices. ACTIVE OLD   INACTIVE Description Notice Archive Description Notice Archive IPN   CGRO n/a KONUS table BeppoSAX table INTEGRAL table NEAR table Swift table ALEXIS table AGILE table HETE table Fermi table MILAGRO table MAXI table XTE-PCA,-ASM table MOA table Suzaku table SNEWS table     CALET table     AMON table     Counterpart table     SIMBAD-NED n/a

The GCN/TAN contact is: Scott Barthelmy, scott@milkyway.gsfc.nasa.gov, (301)-286-3106 (or scottgcn@gmail.com if the Goddard email is down). A service of the HEASARC at the Astrophysics Science Division (ASD) at NASA's GSFC. Astronomy Questions? Ask a High Energy Astronomer. NASA-specific Questions? Try the NASA Homepage or start at the NASA site map. Curator: Teresa Sheets Responsible NASA Official: Phil Newman NASA Privacy Statement, Disclaimer, and Accessibility Certification This file was last modified on Saturday, 20-May-2017 16:39:04 EDT