Friday 17 April 2015 9.00am EDT
During the last week Chandra completed the observing schedule as planned. A real-time procedure was executed on Apr 14 to perform a diagnostic dump of the Control Processing Electronics (CPE). A second real-time procedure was executed on Apr 15 to re-initialize the flight software Thruster Command Processing subfunction in order to prevent the occurrence of an overflow condition. A Chandra image release was issued on Apr 16 describing observations of the globular cluster NGC 6388. A planet may have been ripped apart by a white dwarf star in this globular cluster in the outskirts of the Milky Way. A white dwarf is the dense core of a star like the Sun that has run out of nuclear fuel. Combining data from Chandra and several other telescopes, researchers think a "tidal disruption" may explain what is observed. For details see: http://chandra.si.edu/photo/2015/ngc6388/ The schedule of targets for the next two weeks is shown below and includes an observation of SN2014C, accepted as a Director's Discretionary Time TOO follow-up on Dec 15, and an observation of the Cas A CCO, accepted as a Director's Discretionary Time TOO on Mar 9. |
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Radiation Belts Apr 19
CygnusA-EHotspot ACIS-I
GRB130702A ACIS-S Apr 20
SN2014C ACIS-S
G256.45-65.71 ACIS-I Apr 21
PSRB1259-63 ACIS-I
Radiation Belts Apr 22
CygnusA-EHotspot ACIS-I
Tycho ACIS-I
Radiation Belts Apr 24
RXCJ1135.6-2019 ACIS-I Apr 25
SgrAcomplex1 ACIS-I
RXCJ144248.5+120042 ACIS-I Apr 26
Abell1795outskirts ACIS-I
Radiation Belts Apr 27
CasACCO ACIS-S
A1795-B (2 obs) ACIS-I Apr 28
Radiation Belts Apr 29
CassiopeiaA ACIS-S Apr 30
CasACCO ACIS-S May 1
Abell1795outskirts ACIS-I
NGC4487 ACIS-S May 2
MCG+01-32-049 ACIS-S
Radiation Belts
CygnusA-EHotspot ACIS-I May 3
Abell1795outskirts ACIS-I
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All spacecraft subsystems continued to support nominal operations.
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Revised: January 19, 2017