HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4884 PERIOD COVERED: 5am July 9 - 5am July 10, 2009 (DOY 190/0900z-191/0900z) OBSERVATIONS SCHEDULED ACS 11374 CCD Flat Field Stability (Internal Tungsten Lamps) The stability of the CCD flat fields will be investigated using the internal tungsten calibration lamps and the standard filter subset (F435W, F625W, F814W, and F850LP). High signal observations will be used to assess the stability of the pixe ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science   DAILY REPORT      #4883   PERIOD COVERED: 5am July 8 - 5am July 9, 2009 (DOY 189/0900z-190/0900z)   OBSERVATIONS SCHEDULED   ACS 11369   ACS CCD Functional Test for WFC   During the ACS Repair (ACS-R) conducted during Hubble Servicing Mission4 (SM4), astronauts will install a CCD Electronics Box Replacement(CEB-R) and Low-Voltage Power Supply Replacement (LVPS-R). A rudimentaryaliveness ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4877 PERIOD COVERED: 5am June 29 - 5am June 30, 2009 (DOY 180/0900z-181/0900z) OBSERVATIONS SCHEDULED COS 11482 FUV Detector Dark Measure the FUV detector dark rate by taking long science exposures with no light on the detector. The detector dark rate and spatial distribution of counts will be compared to pre-launch data in order to verify the nominal operation of the detector, and for use in th ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4876 PERIOD COVERED: 5am June 26 - 5am June 29, 2009 (DOY 177/0900z-180/0900z) OBSERVATIONS SCHEDULED WFC3/UV 11808 WFC3 UVIS Bowtie Monitor The UVIS detector was observed during ground testing to occasionally exhibit flat field and dark variations with a bowtie pattern. These variations are most significant as ~1% flat field (gain) variations across the field of view. It is believed that this represent ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4875 PERIOD COVERED: 5am June 25 - 5am June 26, 2009 (DOY 176/0900z-177/0900z) OBSERVATIONS SCHEDULED S/C 11364 Vehicle Disturbance Test The purpose of the VDT is to measure and characterize uncompensated environmental disturbances acting upon the HST during normal operation. The VDT is a passive test (not a forced-response test) used to obtain signatures for both externally induced (e.g. SCM, SA-3, SSM th ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science   DAILY REPORT       #4874   PERIOD COVERED: 5am June 24 - 5am June 25, 2009 (DOY 175/0900z-176/0900z)   OBSERVATIONS SCHEDULED   ACS/WFC 11369   ACS CCD functional test for WFC   During the ACS Repair (ACS-R) conducted during Hubble Servicing Mission4 (SM4), astronauts will install a CCD Electronics Box Replacement(CEB-R) and Low-Voltage Power Supply Replacement (LVPS-R). A rudiment ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4873 PERIOD COVERED: 5am June 23 - 5am June 24, 2009 (DOY 174/0900z-175/0900z) OBSERVATIONS SCHEDULED: COS23/FUV 11356 COS FUV Initial On-Orbit Turn-On This proposal specifies the procedure for SMOV initial HV turn-on and ramp-up of the COS FUV detector. (The FUV will have been commanded to its Operate state to support execution of proposal 11353.) The procedure is detailed in the Observing Descriptio ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4872 PERIOD COVERED: 5am June 22 - 5am June 23, 2009 (DOY 173/0900z-174/0900z) OBSERVATIONS SCHEDULED: None FLIGHT OPERATIONS SUMMARY: Significant Spacecraft Anomalies: (The following are preliminary reports of potential non-nominal performance that will be investigated.) HSTARS: 11893 - COS suspended during safemode recovery @ 173/16:21:28z COMPLETED OPS REQUEST: (None) COMPLETED OPS NOTES: (None) ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4871 PERIOD COVERED: 5am June 19 - 5am June 22, 2009 (DOY 170/0900z-173/0900z) OBSERVATIONS SCHEDULED: None FLIGHT OPERATIONS SUMMARY: Significant Spacecraft Anomalies: (The following are preliminary reports of potential non-nominal performance that will be investigated.) HSTARS: 11890 - WFC3 Safed During Transition to Operate @ 170/23:49z COMPLETED OPS REQUEST: 18540-1 - Recover WFC3 to Operate (Execu ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4870 PERIOD COVERED: 5am June 18 - 5am June 19, 2009 (DOY 169/0900z-170/0900z) OBSERVATIONS SCHEDULED: None FLIGHT OPERATIONS SUMMARY: Significant Spacecraft Anomalies: (The following are preliminary reports of potential non-nominal performance that will be investigated.) HSTARS: (None) COMPLETED OPS REQUEST: 18541-1 - Power off G1 and G2 @ 169/17:02z COMPLETED OPS NOTES: (None)   &nb ...Continue Reading