1. NIRISS Science Team Meeting Oct 2015 NIRISS Activities in CV3 André Martel

2. NIRISS Science Team Meeting Oct 2015  Goals (for NIRISS performance): 1.Characterize and verify the performance of all the modes of NIRISS (including new detector). 2.Collect data for reference files (JWST calibration pipeline, aXe, etc…).  Hardware changes since CV2: new grisms (GR700XD, GR150R), new detector, new wheel motors.  Important dates: Oct 21: ISIM CV3 TRR Closeout Review Oct 26: AFC/SFT and pumpdown  Since CV2: new grisms, detector, wheel motors  characterize all modes of NIRISS Detector  Collect reference files for JWST calibration pipeline (update some in commissioning)  External stimulus from OTE Simulator (OSIM): monochromatic and continuum sources, diffuser illumination (flat field)  Low chamber background Overview

3. NIRISS Science Team Meeting Oct 2015  Commanding: OTP (state tables), OSS, CECIL  Illumination sources: 1.NIRISS internal lamps (FLAT1, FLAT2, LAMP1, LAMP2) 2.OTE Simulator (OSIM): a.Monochromatic sources (0.64, 1.06, 1.32, 1.55 μm) b.Continuum sources (Tungsten) (1 – 5 μm) c.Flat field lamp/diffuser  Monitor the mechanisms usage (DW, CFM, lamps)  Since CV2: new grisms, detector, wheel motors  characterize all modes of NIRISS Detector  Collect reference files for JWST calibration pipeline (update some in commissioning)  External stimulus from OTE Simulator (OSIM): monochromatic and continuum sources, diffuser illumination (flat field)  Low chamber background

4. NIRISS Science Team Meeting Oct 2015 NGINTitle JWST-PROC-026716ISIM Element Cryo-Vacuum #3 Test JWST-PROC-027875OSS Warm Darks Cryo-3 Test JWST-PROC-026314OSIM Initial Flux Evaluation JWST-PROC-016344SIDECAR ASIC and FPA Tuning JWST-PROC-026498ISIM Comprehensive Performance Test Part 1 JWST-PROC-026482OSIM and SI Checkout JWST-PROC-026481ISIM CV3 Optical Baseline Procedure JWST-PROC-026318NIRISS Performance Characterization JWST-PROC-027876OSS SI Characterization (SIC) JWST-PROC-027877Day in the Life (DIL) JWST-PROC-026483Final Optical Performance Also: AFC/SFT procedures Test Procedures  About 40 test procedures. Most relevant:

5. NIRISS Science Team Meeting Oct 2015 CV3 Timeline

6. NIRISS Science Team Meeting Oct 2015  Functional Tests (AFC/SFT) (Oct 26)  start cooldown  Warm darks (Nov 17-19) 1.OSS visits (NGROUPS=88) 2.80 – 60 K CV3 Timeline Part 1

7. NIRISS Science Team Meeting Oct 2015  Initial Flux Evaluation (Nov 20-22): 1.Calibration of the OSIM source fluxes, temperature, and attenuation, pulse widths and delays, diffuser lamp, etc…. Updates to the Test Planning Tool (TPT). 2.OTP0.2.9.0.NIS, 0.2.9.6.NIS, 0.2.9.8.NIS, 0.2.9.3.NIS, 0.2.9.7.NIS  Reach cold plateau (≈ 37.5K in CV2)  Turn on NIRISS FPA heater with CECIL (Nov 22) CV3 Timeline Part 1

8. NIRISS Science Team Meeting Oct 2015  ASIC tuning (Nov 23-27; Thanksgiving) 1.Run 1: NIRCAM (12 hours), NIRISS, G1, G2 (7 hours each) 2.Run 2: fine-tuning (same order, shorter) 3.Analysis by ComDev 4.Quick turnaround (~24-36 hours): parallel analysis, “metrics”  Actions for NIRISS team: 1.Update the bad-pixel map. 2.Future state tables: - Update SOSS sweet spot pixel (if necessary). - Update the four NRM science pixels (and subarray). CV3 Timeline Part 1

9. NIRISS Science Team Meeting Oct 2015  CPT (Comprehensive Performance Test) (Nov 28-Dec 6) 1.NIRISS internal lamp checks and parallel darks and backgrounds 2.OTP commanding (state tables) and CECIL CV3 Timeline Part 2

10. NIRISS Science Team Meeting Oct 2015  OSIM + SI Checkout (Dec 6-19) 1.Chamber background checks (OTP0.2.0.2) 2.Focus Sweeps: OSIM and CFM (OTP0.5.NR.1, 0.5.NR.2) 3.Grisms and NRM Checkout (OTP0.2.4.1.NR) a. copy of some lines of the NIRISS Perf Verification b. Verify/confirm (“first light”) - verify location of SOSS sweet spot pixel - spectral and spatial location of GR700XD traces - pointing/subpixel dithers at the four NRM pixels - tilt of GR700XD and GR150C/R traces - ghosts/stray light in the grisms (glint, GR700XD, etc…) - OSIM source fluxes CV3 Timeline Part 2

11. NIRISS Science Team Meeting Oct 2015 4. Actions for NIRISS team: a. Choose best CFM focus. b. Decide if trace tilt tests must be executed (7.15 and 7.16) c. In state tables of Performance Verification: - update focus (TPT) - update pixel of SOSS sweet spot - update pixels of NRM pixels and subpixel offsets - update fluxes of OSIM sources CV3 Timeline Part 2

12. NIRISS Science Team Meeting Oct 2015  Initial Optical Baseline (Dec 20-21) 1.Mostly for trending 2.Short OSIM flat field and pupil alignment check (PAR)  Critical Tests (Dec 21-23) 1.Includes 7.17 Detector Linearity (after NIRCAM and before FGS for warm lamps)  Christmas break (Dec 24-26) CV3 Timeline Part 2

13. NIRISS Science Team Meeting Oct 2015  NIRISS Performance Verification (Dec 28-31) 1.Majority of NIRISS observations (and mechanism usage). 2.OTP commanding (7.*), e.g., 7.5 NRM Verification, 7.7 GR150C/R Wavelength Calibration, etc… 3.Other ISIM tests for requirements verification (OTP4.3.NR Field-of-View, OTP4.5.NR Rogue Path, etc…) 1.NIRSpec is parallel (OSS) 2.See JWST-STScI-004354 or JWST-RPT-027763 http://www.stsci.edu/~martel/NIRISS_CV3_perfver_martel.pdf CV3 Timeline Part 2

14. NIRISS Science Team Meeting Oct 2015  Transition to warm plateau (≈ 43K) (FPA heater off/on)  OSS + SI Characterization (SIC) (Jan 8-10) 1.Exercise OSS scripts for all the NIRISS modes (including a short CFM sweep); NISRAPID and NIS readouts 2.OSIM source on; 31 visits, 67 activities CV3 Timeline Part 3

15. NIRISS Science Team Meeting Oct 2015  NIRISS Darks (Jan 10-11) 1.In parallel to MIRI performance tests 2.CECIL commanding for full frames and subarrays.  OSS Day-in-the-Life (Jan 13-15) 1.NIRISS exposures in F158M + CLEAR only 2.7 visits, 21 exposures (38 integrations, NGROUPS = 6-12) CV3 Timeline Part 3

16. NIRISS Science Team Meeting Oct 2015  Final Optical Performance (Jan 16-17) 1.Trending: short OSIM flat field, pupil alignment check 2.CFM adjustment for 0g 3.DW at CLEARP + F444W for ambient metrology  Warmup 1.Turn off NIRISS, start warmup (Jan 18) 2.Open chamber (Feb 6) CV3 Timeline Part 3

17. NIRISS Science Team Meeting Oct 2015  Rapid turnaround and formal documentation in order to: 1.Verify requirements. 2.Characterize and assess the performance of each mode. 3.Update or change the operations. 4.Create the final pre-flight set of calibration reference files for all modes (due 6 months after the completion of CV3). Note: other analyses by the ISIM team (alignment, trending, etc…) Post-CV3 Analysis

18. NIRISS Science Team Meeting Oct 2015  Will verify and characterize all the modes of NIRISS and collect all necessary data for launch. OTP number of exposures: > 850 (all of CV2: ~1230) OTP number of integrations: > 4830 (all of CV2: ~10900)  Mechanism usage (current tests; no repeats; OSS separate) 1.Test Planning Tool: 85% (PW) and 75% (FW) of allocation 2.Worst-case scenario: 145% (PW) and 135% (FW)  Web site with CSV of state tables, OSS visits, etc…: http://www.stsci.edu/~martel/CV3 Summary

19. NIRISS Science Team Meeting Oct 2015  Orientation (Oct 16): Shared Files / Entire JWST Project / ISIM / Reviews / ISIM CV3 Orientation /ISIM CV3 Orientation (10-14-15_CV3_Training.pptx) https://ngin.jwst.nasa.gov/Sharefile/Sharefileview.asp?ID=21558  TRR on NGIN: Root / Entire JWST Project / ISIM / Reviews / ISIM CV3 TRR / Final Charts & Final Backup  Optics pre-TRR on NGIN: Root / Entire JWST Project / ISIM Optics / CV3 optics pre-TRR 17 Sep 2015 Material