Current Status of HETE-2 Operations

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Gamma-Ray Sources, Gamma-Ray Bursts, Supernovae, X- And Gamma-Ray Telescopes And Instrumentation, Spaceborne And Space Research Instruments, Apparatus, And Components

Scientific paper

The High Energy Transient Explorer (HETE-2) has been in orbit for nearly three years. After a slow startup, the operation of the spacecraft and its instrumentation is now stable and efficient. GRBs are being localized at a rate of ~25 per year, and the Soft X-ray Camera (SXC) is determining burst positions with arcminute precision on a regular basis. As described elsewhere in this conference, HETE-2 has essentially solved the mystery of the ``dark bursts'' and helped confirm the connection between long GRBs and type Ic supernovae. Because of its excellent low-energy response, HETE has proven to be a capable detector of X-ray rich GRBs and X-ray flashes. In this paper, we give an update on the spacecraft and instruments and describe some of the more significant developments of the last 6-12 months. We also highlight issues which, although described in part on the HETE web page (http: //space.mit.edu/HETE), may not be clear to many observers.

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