1. Tracing the JWST Proposal from User Interface to Commanding of an Instrument Margaret Meixner & WIT Balzano, Robinson & CMD

2. March 20, 2008TIPS PPS Flow

3. March 20, 2008TIPS Path of your observation PPS/Template: Takes user input on observation for a visit(s) Visit File: Ordered list of script calls with associated input parameters for one target position (i.e one guide star), derived from User Template inputs Operation Plan: Time ordered list of visit files with associated time windows

4. March 20, 2008TIPS Hr 0Hr 2Hr 4Hr 6Hr 8Hr 10Hr 12Hr 14Hr 16Hr 18Hr 20Hr 22Hr 24 Visit Set-up & Execution DSN Activities for Contact S&OC Activities for Contact Visit Observation Plan (OP)Appended OP Segment Check Visit Time Check Visit Slew to Guide Star GS ID GS Acq Target Offset Target Acq Exp Target Offset SI Exposure Dither SI Exposure... DSN S&OC Observatory Contact Ground Transfer of Recorded Data Real-Time Data Recorded Eng Data - R/T Eng Telemetry - CFDP Transaction Messages - DSN Monitor Blocks - Ranging & Doppler Tracking CFDP Processing Recorded Sci Data - CFDP Accounting HGA Pointing - Earth CenterHGA Pointing - Ground StationHGA Pointing - Earth Center - Available in 15 min - Transfer in one hr - Available in one hr - Transfer in 5 hrs Communications with DSN - Setup Ground Station - Terminate Ground Station Ka-Band Xmtr Establish Comm Perform SOH Check Turn on Ka-Band Authenticate Link Initiate SSR Dump Route CFDP Transaction Messages Terminate SSR Dump Terminate Contact Monitor Health & Safety Uplink Cmds, Tables & Files Perform Clock Correlation Contact with JWST Day In The Life

5. March 20, 2008TIPS Cmds JavaScript Engine ISIM Payload C&DH App Cmds App Tlm Script Processor Scripts Spacecraft Applications Cmds Tlm SI Payload Application Language Extensions For script to fsw communications JavaScripts Payload Flight Software Event-Driven Architecture On-board Operations File Storage Area Event-driven system Observation Plan Visit Files Ground Weekly uploads of operational directives

6. March 20, 2008TIPS Activity List for MIRI Imaging Visit 1. Slew (SC) 2. Guide Star Acq. (FGS/ISIM) 3. MIRI Imaging: (MIRI/ISIM) following loops are under Java scripts For all requested target positions Request Spacecraft FSW to perform small angle manuever Wait for Spacecraft FSW confirmation of manuever completion For all requested filter positions Command MIRI FSW to position Filter Wheel Wait for MIRI FSW confirmation of Filter Wheel Motion For all requested exposure repeats Command MIRI FSW to configure Detector Readout Properties (samples,frames,groups,ints,subarray) Wait for MIRI FSW confirmation of Detector Setup Request ISIM FSW to configure on-board Data Processing Params Wait for ISIM FSW confirmation of on-board Data Processing Setup Request MIRI FSW to start Exposure Wait for MIRI FSW confirmation of Exposure Start Wait for ISIM FSW confirmation of on-board Data Processing End time

7. March 20, 2008TIPS Event-Driven Communication Process script Observation Plan Executive Script MIRI Imaging Script Send completion notice Lower-level Scripts Function call Return value Send CmdGet Tlm MIRI Flight Software MIRI HARDWARE Command Telemetry Event message Issue script status Time-ordered Event Log SSR Javascript Language Extensions

8. March 20, 2008TIPS Successful MIRI Visit Execution MIRI Science Visit File Activity Statement for Vehicle maneuver Activity Statement for Guide Star Acquisition Activity Statement for MIRI exposure A Activity Statement for MIRI exposure B Vehicle Maneuver On-board Script activate success Guide Star Acq On-board Script activate success MIRI Observing On- board Script activate success MIRI Observing On- board Script activate success Visit start event message telemetry Visit end event message telemetry activity start event message telemetry

9. March 20, 2008TIPS Aborted Visit Execution Science Visit File Activity Statement for Vehicle maneuver Activity Statement for Guide Star Acquisition Activity Statement for MIRI exposure A Activity Statement for MIRI exposure B success activate Vehicle Maneuver On-board Script success Visit start event message telemetry activity start event message telemetry activate Guide Star Acq On-board Script activity start event message telemetry EXIT Error event message telemetry activate MIRI FPE failure On-board Script activity start event message telemetry failure

10. March 20, 2008TIPS JWST Commanding Team10 MIRI Normal Science Ops: MIRI flat fields White boxes correspond to on-board scripts Lamp and CCC Timing Requirements are addressed.

11. March 20, 2008TIPS JWST Commanding Team11 MIRI Imager Input Parameters Many input parameters come from the user via the Template, verified in an automatic fashion en route. Optional Not Used Used D DD D D D D DDD D

12. March 20, 2008TIPS Operations & Scripts Overview Space Telescope Science Institute (STScI) is responsible for the Operations of JWST The SI Teams & STScI have collaboratively developed the SI operations concept document in parallel with requirements since Phase A. Status of Effort Operations Working Groups Systems Engineering problems uncovered & addressed Operational overheads associated with an observation Development of Scripts: Event driven operations, MIRI Script testing

13. March 20, 2008TIPS SI Operations Working Group Payload Flight Software Operations Working Group Periodically Operation Concepts Updates Script Requirements SI Science & Engineeri n Commandin g SI Flight Software JWST System Engineers STScI Science Communicate through Operations Working Groups

14. March 20, 2008TIPS Status on Operations & Scripts Science Instrument Script Development  Started in late 2004, 48% complete Operations Scripts Subsystem (OSS) Passed its PDR on Jan. 23, 2008 Operations working groups and commanding working groups continue to meet monthly.

15. March 20, 2008TIPS Script Implementation Units Completed New since 2/07 Deleted since 2/07

16. March 20, 2008TIPS Script Verification Roadmap Script Project Tests Unit Tests at STScI lab Script Build Tests Build Tests at STScI lab PRD level 1 certification Script Integration Tests with FSW Integration Tests at Goddard lab July 2008 - June 2010 (sooner possible if we work with instrument lab) PRD level 2 certification Verified for use on flight hardware & Delivered to PRD Script Integration Tests with Flight Hardware Integration Tests with whole ISIM system July 2010 - Dec. 2011 PRD level 3 certification Verified for operational use ICD compliant Work with SI Teams to test Scripts during Ground tests.