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Operations CXO Status Report
Friday 12/21/01 9.00am EST
During the last week, Chandra completed the observing schedule as planned.
A realtime procedure was completed on 17 Dec to swap from SSR-B to SSR-A. SSR-A had become full following a series of missed DSN passes caused by technical problems at the sites. Recording automatically switched to SSR-B to avoid data loss. All the data from both recorders were recovered at the next and subsequent passes however, thus maintaining the mission record of no data loss due to over-filled recorders.
A Chandra press release was issued on 19 Dec describing the "aftermath of a titanic explosion" in the elliptical galaxy NGC 4636. For further details and images showing the 25,000 light year symmetric arcs resulting from the explosion, see: http://chandra.harvard.edu/press/01_releases/press_121901.html
The mission planning team completed work on the 2-week schedule to span the holiday period. The schedule of observations is shown below and includes a series of grating observations of Comet Linear, and an observation of Alpha Tauri coordinated with the Hubble Space Telescope.
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Q1245-197 ACIS-S Dec 23
PSS0957+3308 ACIS-S
CHVC125 ACIS-S
A2294 ACIS-I Dec 24
Cygnus Loop NE2 ACIS-S
Radiation Belts Dec 25
Beta Ceti HRC-S/LETG
G78.2+2.1 ACIS-I Dec 26
CYG X-1 ACIS-S/HETG Dec 27
A168 ACIS-I
Radiation Belts
HD 37022 ACIS-S/HETG Dec 28
Alpha Tauri HRC-I
SDSS020651+121624 ACIS-S Dec 29
Vela PWN ACIS-S
NGC 4038/NGC 4039 ACIS-S
Radiation Belts Dec 30
Comet Linear (4 obs) ACIS-S/LETG Dec 31
PSS0134+3307 ACIS-S
NGC 4051 HRC-S/LETG
HZ43 (3 obs) HRC-S/LETG Jan 1
Radiation Belts Jan 2
VW CEP HRC-S/LETG
TXS 0145+386 ACIS-I Jan 3
Radiation Belts Jan 4
A168 ACIS-I Jan 5
1E1207.4-5209 ACIS-S
1RXSJ161411.3-630657 ACIS-I Jan 6
HD123445 ACIS-I
Q1328+254 ACIS-S
PSS 1539+4312 ACIS-S
RX J1605+3249 ACIS-I
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All spacecraft subsystems continued to operate nominally.
The next report is planned for January 4 following the holiday. A Happy Holiday and New Year to everyone from the entire Chandra Team!
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