Friday 23 October 2020 9.00am EDT
During the last week the observing schedule was replanned to incorporate an observation of GRB 201015A, which was accepted as a Target of Opportunity on Oct 19. Time from a scheduled observation of Orion Nebula Cluster was impacted by the replan and will be rescheduled in a future week. A real-time procedure was executed on Oct 18 to monitor the ramp-up of the HRC-I detector high voltage, as part of an HRC-I check-out observation of Cas A for which all science commanding was in the weekly loads. The real-time procedure and the observation ran nominally and the observation data disclosed no performance concerns. Following a review on Oct 22, the HRC-I is returned to provisional use for science observations, beginning with the load starting on Oct 26. Additional real-time procedures were executed during each ground contact to reset the DSN Outage Dead Man Load. A Chandra image release was issued on Oct 22 describing a study which detects the gravitational redshift phenomenon in X-rays in Chandra observations of a binary star system containing a neutron star. This system, 4U 1916-053, exhibits shifts in spectral lines consistent with the predictions of general relativity. For details see: https://chandra.harvard.edu/photo/2020/lmxb/ The schedule of targets for the next week is shown below and includes an observation of NovaRet2020, which was accepted as a Director's Discretionary Time Target of Opportunity on Oct 15. |
------------------------------------------
ARLac Checkout HRC-S Oct 25 Mars HRC-I /LETG gx5-1 ACIS-S/HETG MRK0896 ACIS-S Oct 26 Mars HRC-I /LETG HD24636 HRC-I MCG-5-23-16 ACIS-S/HETG Radiation Belts Oct 27 COBRA141155.2+341510 ACIS-S PSZ2G141.77+14.19 ACIS-S Oct 28 SN2007gr ACIS-S BR0351-1034 ACIS-S MCG-5-23-16 ACIS-S/HETG 2MASSJ03411051+0336 ACIS-S UGC2608 ACIS-S Oct 29 GRB201015A ACIS-S Radiation Belts Oct 30 Abell1838 ACIS-I AT2019wxt ACIS-S SN2014cl ACIS-S NovaRet2020 HRC-I /LETG Oct 31 SDSSJ021930.51-05564 ACIS-S AT2019wxt ACIS-S COBRA141155.2+341510 ACIS-S OrionNebulaCluster ACIS-S/HETG Nov 1 Radiation Belts
------------------------------------------
All spacecraft subsystems continued to support nominal operations.
Return to Status Reports