space telescope science institute operated for nasa by aura cosmic origins spectrograph hubble...

SPACETELESCOPESCIENCEINSTITUTE

Operated for NASA by AURA

Cosmic Origins Spectrograph

Hubble Mission Status Review

Charles D. (Tony) Keyes

Last Review: 8 April 2003

10 June 2003

Hubble Mission Status Review of 10

Space

Telescope Science Institute

Status as of: 10 June 2003PROJECT: COS

COS Integrated SI Aft End and Vent Covers


Space



Highlights - Accomplishments

• SI News: SI fully integrated

Thermal Balance begins 25 June; Thermal-Vac Science Cal on 5 July! COS PER

All STScI IS supported the review FUV02 aligned in CAOS/HOMS (Hartig participation); “tilted” spectrum lines present

before GSFC activities, absent after. Different cal lamp used; thorough evaluation via BIA and ABA by

Ball/STScI/GSFC team; no changes in CAOS/HOMS BOA FUV resolution degradation will be determined in Thermal-Vac testing GSFC EMI/EMC, vibration and acoustic tests, metrology all successfully performed;

MAMA MCP current exceeded safe limit during pre-ship system FT after acoustic test on NUV/MAMA; ion trap shorted to ground due to screw in contact with ion trap (40 v); repaired (Vespel potted in place).

Shipped back to Ball; now in RASCAL alignment. Proceed to Thermal-Vac / Thermal Balance activity (24/7 2 shifts per day

activity commencing 25 June nominally through 5 August)- STScI Instrument Scientists (Keyes, Sembach, Leitherer, Friedman, and

Bohlin) will stand shifts during Thermal-Vac; Hartig will “float”


Space



Instrument Issues – MAMA MCP Overcurrent Anomaly and Repair

HV Connector

Chassis Ground

40V Side of Ion Trap

Vespel

1158


Space



COS Various Views: pre-acoustic test; packing for return to Ball


Space



Highlights - Accomplishments (cont.)

• STScI scheduling system Flat field commanding re-work; now in implementation testing

• STScI continued Thermal-Vac requirements planning and preparation Calibration activity splinter meeting and telecons with IDT Draft data transfer standards agreement with IDT; development and testing

of data transfer process completed STScI IS shift schedules finalized

• Supported COS Science Team meeting• Delivered updated COS mini-Handbook; additional post-Thermal-Vac

updates planned in August and schedule coordinated• Drafted Target Acquisition requirements TIR (COS TIR 2003-02, Friedman)• STScI post-SM4 data volume study (includes significant COS section) completed

• SMOV4 requirements planning: Special Commanding requirements definition

• Calcos 1-d spectrum extraction and averaging routines tested

• COS Keyword Dictionary (adjunct to ICD-19) reviewed by COS IS and OPUS

• McMaster has installed CEDAR and continues to test APT

• Friedman supported STScI AAS COS display at Nashville meeting• Leitherer leaves COS Group to join JWST


Space



• Actively support Thermal-Vac 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 Screening scheduling system development • Continue APT spectroscopic ETC development• Commence APT Target Acquisition ETC development

• Milepost Dates: {+ ==> later than last report} COS Thermal-Vac at Ball: 5 July – 5 Aug 2003 [+2w; revised timeline] SI delivery to GSFC: 12 Aug 2003 (+11d; GSFC and Ball revised timeline] SMGT: 3 Mar 2004 (no change) Launch: 18 Nov 2004 (no change)

Planned Activities and Future Milestones


Space



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

space telescope science institute operated for nasa by aura cosmic origins spectrograph hubble...

Documents