Friday 21 November 2003 7.30am EST
| During the last week Chandra completed the observing schedule as planned.
Preparations for the 2003 Leonids meteor shower passage were completed and operations proceeded accordingly last week. Steps were taken to ensure that Chandra was pointed to within 10 degrees of the anti-radiant during the passage of 4 shower streams on Nov 13, 18, 19 and 23. On Nov 15 telemetry indicated an unexpected disturbance in the spacecraft pointing stability. Preliminary analysis indicates a change in spacecraft rate disturbances and corresponding system momentum consistent with an impact from a Leonid meteoroid. All systems continued to operate normally following the event however analysis is being performed to assess possible undetected damage. A Chandra press release was issued on Nov 17 describing observations of the quasar GB1508+5714 that reveal a jet of high-energy particles that extends more than 100,000 light years from the supermassive black hole powering the quasar. For details see: http://chandra.harvard.edu/photo/2003/gb1508/ . The observing schedule for the next week is shown below and includes a series of 30 observations of Comet Encke (a moving target) and an observation of M31 coordinated with HST. |
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Radiation Belts Nov 23 NGC 5283 ACIS-S Comet Encke (30 obs) ACIS-S RX J1914.4+2456 ACIS-S Nov 24 3C273 Jet ACIS-S 1322+36 ACIS-S Nov 25 FTM 0904-0145 ACIS-S Radiation Belts zeta Lep ACIS-I Nov 26 PMN J0214-0518 ACIS-S SDS 2357+0043 ACIS-S M31 ACIS-I SDSSJ080154.24+441233.9 ACIS-S FTM 0915+2418 ACIS-S 4C 25.40 ACIS-I Nov 27 SU AUR ACIS-S/HETG Radiation Belts Nov 28 SDSS 1306+0356 JET ACIS-S Nov 29
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All spacecraft subsystems continued to support nominal operations.
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Revised: July 08, 2022