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6 BATSE operations; GRB data availability

Gamma-ray burst data obtained with BATSE are available on three timescales in order to serve different users. GRB location information and selected ancillary GRB data are made available in near realtime and distributed by the GCN (formerly BACODINE) network system (Barthelmy et al. 1999). These data are used by a number of robotic telescope systems currently in operation and under development. The BATSE Rapid Burst Response (RBR) locations are generated by on-call BATSE personnel in Huntsville who manually process data from selected intense GRBs. A typical location accuracy of $\sim$2 degrees is obtained for a strong burst, significantly better than that possible with the automated BACODINE system. These RBR locations are only performed about twice per week, for the stronger bursts. The derived locations are usually processed within twenty minutes and are distributed via the GCN network.

The most comprehensive set of BATSE GRB data are in the periodically updated BATSE catalog now available on the Web. After eight years of operation, the BATSE GRB data set continues to provide the major fraction of GRB data in the energy range from $\sim$20 keV to $\sim$2 MeV. Most data, including time profiles, are available within several days of their occurrence. It is anticipated that BATSE and the Compton Observatory will remain operational for at least another five years.

Acknowledgements

The author is grateful to T. Giblin for his help in preparing figures and the manuscript.


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