space telescope science institute operated for nasa by aura cos monthly status review 21 august 2001

SPACETELESCOPESCIENCEINSTITUTE

Operated for NASA by AURA

COS Monthly Status Review

21 August 2001

Monthly Status Review 21 August 2001

Charles D.(Tony) Keyes

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Cosmic Origins Spectrograph

Synopsis

• Role: STScI supports COS science operations by leading development of “front-end” (operations) and “back-end” (OPUS/MAST/calibration) ground system.

• COS project is led by NISD, and presently consists of 8 people (5.15 FTE) drawn from NISD, SISD, and ESS.

• The project is on track (green)– most recent report: 19 June 2001



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Health Chart

Subproject Staffing

Schedule Technical

Instrument Development OK (g) ongoing (g) • IDT/STScI MOU (g)• FUV I & T CU/UCB (g)• NUV Grating reflectivity (y)

Commanding and RPS2 OK (g) ongoing (g) • OP-01 (g)• Alignment development (g)

Pipeline and Calibration OK (g) ongoing (g) • keyword development (g)• pipeline design (g) • CDRs (g)



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Accomplishments

• SI News: – Flight detectors are available for both FUV and NUV that meet or exceed

performance requirements– FUV flight spare detector integration continuing at UCB– backup door-opening mechanism repair and recovery plan implemented– NUV grating reflectivity below specification (continues yellow)

• G185M below spec; G225M can be used – lower resolution; vendor working• G225M below spec; primary vendor evaluating fix; different vendor selected for

mechanically-ruled alternate• G285M OK• G230L in fabrication; looks good



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Accomplishments (cont.)

• STScI pipeline systems– OPUS/HDA and calcos CDRs: held at STScI on 23 and 24 July,

respectively• Formal review panel: STScI and IDT representation• 12 Requests for Action (RFAs) submitted

– All reviewed and Actionees assigned

• CDR presentations and RFA status at:

http://www.stsci.edu/instruments/cos/devel/coscalwg.htmlhttp://www.stsci.edu/instruments/cos/devel/coscalwg.html



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Cosmic Origins SpectrographCOS Pipeline CDR Review Panel

• Ray Kutina (STScI) – Chair• Tom Brown (STScI)• Ken Brownsberger (CU/IDT)• Paul Goudfrooij (STScI)• Richard Shaw (NOAO)

Send mail to Review Panel: [email protected]



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COS Pipeline CDR Agenda• Introduction M. McGrath• Data system environment @ SM4 D. Swade• COS File Structure Overview T. Keyes

• COS Keywords & Associations D. Swade • Science Data Processing J. Rose• DADS ingest and distribution A. Farris• On-the-Fly-Reprocessing (OTFR) M. Swam• COS and StarView N. Gaffney• Thermal Vac support R. Henry• Coding Environment P. Greenfield• Coordination with IDT T. Keyes• CALCOS P. Hodge• Schedule & resources M. McGrath



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Accomplishments (cont.)

• STScI scheduling system– Phase 3 development completed and tested at STScI

• Ops bench testing at Ball per FSW availability timeline– Initiated mechanism alignment mode development (phase 4) on schedule

• requirements analysis and proposal instructions completed; OPRs filed• TRANS development underway

– STScI FSW-timing tests on ops bench - 40% complete



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Cosmic Origins SpectrographCOS Phase Development Plan (rev 5, 6/1/01)

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 Automatic Wavelength Calibration Exposures

15. FUV & NUV Flat Field Lamp Calibration Exposures

16. SAA Contours

Phase 6 (7/1/02 – 12/31/02)

17. SMGT Preparations

18. SMOV Special Commanding

19. FUV & NUV Anomalous Recovery

20. FUV & NUV Initial Turn-on

21. FUV & NUV BOP Target Screening

Phase 7 (1/1/03 – 6/30/03)

22. FUV & NUV Lifetime Adjustments



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Plans

Planned Activities and Future Milestones:

• Evaluate and respond to OPUS/HDA and calcos CDR RFAs• Continue Phase 4 ALIGN mode exposure development• Conduct Phase 4 requirements review and initiate development for

FP-SPLIT exposures• Commence training new IS• Commence ETC requirements definition

• Milepost Dates:– COS ops bench test data to STScI: 1 Dec 2001 (no change)– COS integrated SI test data to STScI: 1 April 2002 (no change)– SI delivery to GSFC: 11 Sep 2002 (+2 weeks) {+ ==> later than last report} – Launch: January 2004



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Detailed Schedule



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Resource Summary• Current COS Resources (FY 01)

– NISD• 2 Scientists (1.5 FTE); new hire (K. Sembach) Sep 01

– SISD• 1 Data Analyst (0.5 FTE)

– ESS• 1 System Engineer (0.5 FTE)• 1 Command Development System Engineer (1.0 FTE)• 1 Instrument Engineer (0.4 FTE)• 2 Developers (1.25 FTE)



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Metrics

• Progress versus Planned Milestones and Requirements:– 2 of 2 planned activities completed within reporting period

• COS Pipeline PDR Requests for Action (RFA) Items :– 5 (all remaining) closed during review period

• COS Pipeline CDR Requests for Action (RFA) Items:– 12 opened (actionees assigned; all open at present)



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Issues

Note: Arrows indicate trend (same, better, worse) by direction (right, up, down), and current impact (resolved/no issue, medium, severe) by color (green, yellow, red).

Title Issue Impact Action Status

FSW Status at Ball

Delay of FSW implementation for output of SI data and target acq

Delays timeframe for testing our acq commanding and delays availability of hardware-generated test image data

Delay testing; delay development of OPUS/HDA features and beta to be consistent with Ball capability

STScI front and back end development proceeding; remains on-sched this period; ops bench timing tests proceeding

Instrument Development

NUV grating reflectivity

None to STScI short-term; IDT long-term schedule impacts possible

IDT continue consult with vendor; contract with 2nd vendor (Hitachi) for G225M

Replica gratings with possible fixes in preparation at primary vendor (J-Y)

space telescope science institute operated for nasa by aura cos monthly status review 21 august 2001

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