Chandra Operations CXO Status Report 12 April 2002

Status Report From: Marshall Space Flight Center
Posted: Friday, April 12, 2002

During the last week the observing schedule was replanned twice to include two observations accepted as Targets Of Opportunity (TOO). The Gamma-ray Burster GRB020405 was accepted on 5 April and observed on 6 April, and the X-ray transient XTE J1751-305, also accepted on 5 April was observed on 10 April. Observations of the objects impacted by the TOO's will be observed in a later schedule. 
A real-time procedures was completed on 10 April to update the on-board Ephemeris. 
A press release was made on March 10 in conjunction with a NASA Space Science Update announcing observations of two neutron stars that suggest that the matter in the stars is denser that the standard models predict. One possibility is that the matter is in the form of strange quark matter. The release generated a great deal of interest in the press, and can be found at: 
The observing schedule for the next week is shown below and includes two constrained observations of the comet C/2002 C1. 

C/2002 C1               ACIS-S       Apr 14 
XTE J1908+094           ACIS-S       Apr 15 
Radiation Belts
C/2002 C1               ACIS-S
Field-142549+353248     ACIS-I
Radiation Belts                      Apr 17 
NGC 4038/NGC 4039       ACIS-S       Apr 18 
SGR A*                  ACIS-I       Apr 19 
1343-601                ACIS-S
0858-771                ACIS-S
1711-339                ACIS-S
M 2-9                   ACIS-S
BR1600+0724             ACIS-S
Tornado                 ACIS-I
RX J170930.2-263927     ACIS-S     {C r 20 
PSS 1605+4405           ACIS-S
Radiation Belts
Capella (2 obs)         HRC-S/LETG
Field-142549+35324      ACIS-I       Apr 21 

All spacecraft subsystems continued to operate nominally. 
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