Friday 22 December 2023 9.00am EST
During the last week Chandra completed the observing schedule as planned. A Chandra image release was issued on Dec 19 describing observations of the cluster of young stars NGC 2264, referred to as the "Christmas Tree Cluster" because of its shape. The composite image joins Chandra data with optical and infrared data from gound-based telescopes. The cluster, located about 2,500 light years from Earth, contains stars in the age range from one to five million years. Such young stars are volatile and produce strong flares in X-rays as well as variations seen at different wavelengths of light. For details see: https://chandra.harvard.edu/photo/2023/ngc2264/ The schedule of targets for the next week is shown below and includes observations of GRB231117A, which is a follow-up to a Target of Opportunity which was accepted on Dec 14, and observations of NGC4151, which was accepted as a Director's Discretionary Time Target of Opportunity on Dec 14 and is coordinated with XRISM. |
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WISEJ060800.80+3058 ACIS-S Dec 24
A85North ACIS-I Dec 25
RMon ACIS-S
NGC4151 ACIS-S/HETG
RMon ACIS-S Dec 26
1eRASSJ121710.8-114 ACIS-S
NGC4151 ACIS-S/HETG
Radiation Belts Dec 27
A85North ACIS-I
RMon ACIS-S
1eRASSJ121710.8-114 ACIS-S
NuSTARJ053449+2126. ACIS-I
NGC4151 ACIS-S/HETG
B2.20709+24B ACIS-S Dec 28
NGC5248 ACIS-I
WISEAJ084522.97+032 ACIS-S
MKN421 ACIS-S/LETG
Radiation Belts Dec 29
MKN421 ACIS-S/LETG
MKN421 ACIS-S/LETG Dec 30
SDSSJ081019.47+0950 ACIS-S
DESJ0320-35 ACIS-S
HEPG187.438+03.674 ACIS-I
GRB231117A ACIS-S
HEPG188.859+04.517 ACIS-I Dec 31
GRB231117A ACIS-S
DESJ0320-35 ACIS-S
3C196.1 ACIS-S
Radiation Belts Jan 1------------------------------------------
All spacecraft subsystems continued to support nominal operations.
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Revised: July 08, 2022