SPACE TELESCOPE SCIENCE INSTITUTE Operated for NASA by AURA Hubble Mission Status Review Charles D. (Tony) Keyes Last Review: 10 June August 2003 Cosmic Origins Spectrograph

Hubble Mission Status Review Page 2 of 11 Space Telescope Science Institute Status as of: 12 August 2003 PROJECT: COS Highlights - Accomplishments SI News:  Thermal Vacuum Tests begun  Thermal Balance began 25 June;  Initial Alignment and Instrument Verification (Appendix A) completed 5 July! -~500 exposures obtained  Several hardware issues identified -Ion pressure gauge returned no telemetry (proposed solution: exchange pin settings on connectors) -Cal lamp converter voltages and current for Side 2 out of limits (extensive investigation to determine cause: Interpoint converter deformation under vacuum breaks electrical conductivity; all converters x-rayed to determine sufficient strain relief; proposed solution to add stiffener to top of all converters; presently in-work.)  Initial Geometric Correction table needs improvement  COS is achieving expected sensitivity  Focus and Resolution test stability presently being analyzed  Final Thermal Balance and comprehensive Science Cal (Appendix B) postponed -Present planned test period: 30 Aug through 30 Sep -STScI Instrument Scientists (Keyes, Sembach, Leitherer, Friedman, and Bohlin) will stand shifts during Thermal-Vac; Hartig will “float”

Hubble Mission Status Review Page 3 of 11 Space Telescope Science Institute Status as of: 12 August 2003 PROJECT: COS Highlights - Accomplishments (cont.) STScI Thermal-Vac Effort  Hartig, Leitherer, Sembach onsite at Ball during SI alignment and initial verification activities  All 479 files from initial verification activity have been processed through OPUS; Sembach worked minor keyword issues with Rose, Hodge, and CU  Friedman analyzed initial set of repeatability measurements  No changes between initial pair of datasets  Instituted weekly data analysis and science calibration planning telecons with CU STScI scheduling system  Flat field commanding re-work completed SMOV4 Activities  requirements completed  reviewed internally 17 July  successful Project review on 30 July  Special Commanding requirements definition in progress; revised timeline due to launch/SMGT schedule changes Commenced Integrated Pipeline Test planning McMaster continues to test APT observation specification (Phase II) software Spectroscopic APT/ETC development commenced

Hubble Mission Status Review Page 4 of 11 Space Telescope Science Institute Status as of: 12 August 2003 PROJECT: COS Actively support Thermal-Vac Science Calibration at Ball Deliver SMGT/SMOV4 Special Commanding requirements definition Continue Anomalous Recovery, Initial Turn-on development Finish development of calcos spectrum merging routines Continue STScI FSW tests (T.A. and FUV cert) on ops bench Continue Bright Object system development (ROBOT tables) Continue APT spectroscopic ETC development Continue APT Target Acquisition ETC development Begin Integrated Pipeline Test requirements definition Milepost Dates: {+ ==> later than last report}  COS Thermal-Vac at Ball: 30 Aug – 30 Sep 2003 [+2 m ; revised timeline]  SI delivery to GSFC: 7 Oct 2003 [+2 m ; GSFC and Ball revised timeline]  SMGT: 28 July 2004 [+5 m ; revised timeline]  Launch: summer 2005 [+~6 m ; revised timeline] Planned Activities and Future Milestones

Hubble Mission Status Review Page 5 of 11 Space Telescope Science Institute Status as of: 12 August 2003 PROJECT: COS COS Initial Verification FUV Resolution

Hubble Mission Status Review Page 6 of 11 Space Telescope Science Institute Status as of: 12 August 2003 PROJECT: COS COS Initial Verification Sensitivities

Hubble Mission Status Review Page 7 of 11 Space Telescope Science Institute Status as of: 12 August 2003 PROJECT: COS COS Initial FUV Repeatability Monitor

Hubble Mission Status Review Page 8 of 11 Space Telescope Science Institute Status as of: 12 August 2003 PROJECT: COS COS Initial NUV Repeatability Monitor

Hubble Mission Status Review Page 9 of 11 Space Telescope Science Institute Status as of: 12 August 2003 PROJECT: COS

Hubble Mission Status Review Page 10 of 11 Space Telescope Science Institute Status as of: 12 August 2003 PROJECT: COS

Hubble Mission Status Review Page 11 of 11 Space Telescope Science Institute Status as of: 12 August 2003 PROJECT: COS COS Phase Development Plan (rev 8, 01/06/03) Phase 1 (1/1/00 – 6/30/00) 1.Macro Development 2.Reconfigurations Phase 2 (7/1/00 – 12/31/00) 3.NUV Timetag Mode + Darks 4.FUV Timetag Mode + Darks Phase 3 (1/1/01 – 6/30/01) 5.FUV & NUV Accumulation Science Exposures 6.FUV & NUV Target Acquisition Exposures 7.FUV & NUV Target Peakup Exposures Phase 4 (7/1/01 – 12/31/01) 8.Aperture Alignment Exposures 9.OSM1 Focus Alignment Exposures 10.OSM1 Rotation Alignment Exposures 11.OSM2 Rotation Alignment Exposures 12. FUV & NUV FP-Split Exposures Phase 5 (1/1/02 – 6/30/02) 13.FUV & NUV GO Wavelength Calibration Exposures 14.FUV & NUV Flat Field Lamp Calibration Exposures 15.FUV & NUV Automatic Wavelength Calibration Exposures 16.SAA Contours Phase 6 (7/1/02 – 12/31/02) 17.FUV & NUV BOP Target Screening Phase 7 (1/1/03 – 6/30/03) 18.FUV & NUV Flat Field Lamp Re-work 19.Coordinated Parallels Phase 8 (7/1/03 – 12/31/03) 20.OSM Heating Avoidance (if needed) 21.SMGT Preparations 22.SMOV Special Commanding 23.FUV & NUV Anomalous Recovery 24.FUV & NUV Initial Turn-on Phase 9 (1/1/04 – 6/30/04) 25.TRANS ovratalstart, ovratalend Phase 10 (7/1/04 – 12/31/04) 26.FUV & NUV Lifetime Adjustments