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Friday 25 February 2022 9.00am EST
During the last week Chandra completed the observing schedule as planned. A real-time procedure was executed on Feb 17 to patch the flight software in order to disable HRC input to the radiation monitor. Real-time procedures were also run on Feb 18 set up a radiation zone deadman timer and to re-enable the science instrument safing sequence (SCS 107). Additional real-time procedures were executed on Feb 18-21 to dump OBC-A and -B memory as a follow-up to the patch. The dump will be used to update the baseline memory images maintained on the ground. The schedule of targets for the next week is shown below and includes observations of SDSS J143016.05+230344.4, which is a follow-up to a Director's Discretionary Time Target of Opportunity accepted on Feb 7. |
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JWST-DTDF-1 ACIS-I Feb 27
CSWA26 ACIS-S
SDSSJ105122.46+31074 ACIS-S Feb 28
Radiation Belts
SDSSJ143016.05+2303 ACIS-S
FermiJ1913+0515 ACIS-I
3CR250 ACIS-S
B2.32334+39 ACIS-S Mar 1
CSWA26 ACIS-S
FermiJ1913+0515 ACIS-I
MKN421 ACIS-S/LETG
SDSSJ143016.05+2303 ACIS-S Mar 2
GX17+2 ACIS-S/HETG
MKN421 ACIS-S/LETG
GX17+2 ACIS-S/HETG
Radiation Belts Mar 3
GX17+2 ACIS-S/HETG
MKN421 ACIS-S/LETG
SDSSJ143016.05+2303 ACIS-S
FermiJ1913+0515 ACIS-I
MKN421 ACIS-S/LETG
GDHIdp44 ACIS-I Mar 4
GDHIdp44 ACIS-I
GDHIdp44 ACIS-I
GDHIdp44 ACIS-I
MKN421 ACIS-S/LETG
MKN421 ACIS-S/LETG
GDHIdp44 ACIS-I
GDHIdp44 ACIS-I
PSZ2G067.52+34.75 ACIS-I
PKS1150+497 ACIS-S
Z535-12 ACIS-S Mar 5
PKS1150+497 ACIS-S
Radiation Belts
SDSSJ111300.80+14291 ACIS-S
SDSSJ143016.05+2303 ACIS-S Mar 6
WISEAJ171423.60+085 ACIS-S
CentaurusA ACIS-I
DESJ040559.80-33085 ACIS-S
SDSSJ094043.21+0357 ACIS-S
DESJ040559.80-33085 ACIS-S------------------------------------------
The unavailability of the HRC instrument last week prevented nominal operations.
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Revised: July 08, 2022