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Operations CXO Status Report

Friday 15 March 2002 8.00am EST

During the last week the observing schedule was replanned twice to include two observations accepted as Targets Of Opportunity (TOO). The X-ray transient RX J170930.2-263927 was accepted on 11 March and observed on 12 March, and the supernova SN20020B was accepted on 12 March and observed on 14 March. Observations of IRAS20051-1117, PSS 0958+0740 and FTM0738+2750 were impacted by the TOOs and will be observed in a later schedule.

Real-time procedures were completed nominally on 12 March to update the spacecraft ephemeris and on 14 March to perform a charge injection test with ACIS.

A press release was issued on March 13 announcing that the "twin" quasars Q2345+007 A,B previously considered to be an optical illusion, are now thought to have been produced by merging galaxies. For details see:

Of note this week is the deadline for submission of Chandra cycle 4 proposals a 19:00 EST on March 15.

The observing schedule for the next week is shown below and includes a follow-up observation of the TOO RX J170930.2-263927 and a phase constrained observation of Cgynus X-1.

GRS 1758-258            ACIS-S/HETG  Mar 17
RX J170930.2-263927     ACIS-S       Mar 18
Cyg X-1                 ACIS-S/HETG
A2259                   ACIS-I
IC 342 X-1              ACIS-S
L1527                   ACIS-I
IRAS 18325-5926         ACIS-S/HETG  Mar 19
Radiation Belts
NGC 4038/NGC 4039       ACIS-S       Mar 20
3C 279                  ACIS-S/HETG  Mar 21
Radiation Belts                      Mar 22
MACS-J1115.2+5320       ACIS-I
HS 0830+1833            ACIS-S       Mar 23
HS 0854+0915            ACIS-S
Q1231+481               ACIS-S
SGR A*                  ACIS-I
IRAS 18325-5926         ACIS-S/HETG
SC 1120-1202            ACIS-I       Mar 24


All spacecraft subsystems continued to operate nominally.

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