2000-061A
The HETE-2 gamma ray burst locator satellite was funded to replace the original HETE lost in a launch failure. It replaced the UV sensor with an extra soft X-ray imager, following the discovery by BeppoSAX of X-ray afterglows to gamma ray bursts. HETE-2 is built by MIT rather than AeroAstro, using left over HETE parts. The ground network is a series of small terminals across the world, which relay data back to MIT. MIT operates the satellite; management is GSFC.
HETE-2 was staged from KMR on Pegasus mission P-35. The Pegasus H (Hybrid) has standard stages 1 and 2, with XL's stage 3 and avionics. Takeoff from PKWA (Bucholz Army Airfield) RW 06/24, at 08 42.9N 167 43.6E. Drop point is 7.65N 167.7E; azimuth is 118.45 deg, altitude 11.9km.
Launch control was remotely from CCAFS Hangar AE.
Mass is 124 kg. Size is about 1.0h 0.5d 2.5 span. Resolution 10' to 10".
In Dec 2005 NASA stopped funding but MIT continued operating the satellite.
| HETE 2 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 2000 Oct 9 | 0440 | TO from PKWA | |
| 0538:18 | Drop Pegasus P-35 | ||
| 0538:23 | Ignition | ||
| T+1:21 St 1 burnout | |||
| T+1:30 St 1 sep | |||
| T+2:10 fairing sep | |||
| T+2:49 St 2 burnout | |||
| 527 s coast | |||
| T+8:58 St 2 sep | |||
| 0547:32 | T+9:09 St 3 burn | ||
| 0548:39 | T+10:16 St 3 burnout | ||
| 0550:34 | T+11:16 Stage 3 sep | ||
| Orbit | 600 x 600 x 2 | ||
| 2000 Oct 10 | 97.02 595 x 636 x 1.95 | ||
| 2005 Dec | Control transfer to NASA | ||
| 2007 Mar 28 | Still operational, sporadic ops | ||
| 2009? | end of operations | ||
| 2010 Aug 30 | 96.24 561 x 594 x 1.95 | ||
Payload:
- FREGATE French Gamma Telescope, Lilas-derived Omnidirectional gamma ray spectrometer, 2 sr resolution, 6-400 keV
- WFXM Wide field X-ray monitor, coded mask 2-25 keV
- SXC Soft XR imagers, 2; 33" resolution
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