1. Mission Engineering and Science Analysis (MESA) Jeff Valenti What is MESA?

2. 2 2012 Instruments Division Reorganization NIRISS NIRCam NIRSpec MIRI MESA TEL WIT COS/STIS ACS WFC3 RIAB TEL COS/STIS ACS WFC3 RIAB beforeafter “WIT split” HST JWST Cross Mission We still use “WIT” to refer to JWST teams + MESA (+ TEL)

3. 3 Purpose of MESA Home of Instrument Engineers Home of Operations Detector Lab (ODL) Cross-instrument experiments and analysis Encourage cross-instrument consistency Build on foundation established by WIT Coordinate WIT working groups Facilitate communication between scientists iand engineers at STScI

4. 4 Tom Wheeler Chris Long Dave Hickey Audrey DiFelice John Bacinski MESA Originally Included Instrument Engineers Moved to new Flight Operations Branch (FOB) Steve Vaclavik, Wayne Baggett, Ray Wright,...

5. 5 Lou Strolger Rossy Diaz Van Dixon (NIRISS) Bill Blair Harry (SMO) Doug Long Bria n York (HST) Eddie Bergeron Mike Rachel Anderson (MIRI) MESA

6. 6 Customary to show a picture of the instrument... SM 1 SM 2 MESA “Instrument”

7. 7 And the important components inside...

8. 8 WIT Working Group Concept Participants Representative from each WIT instrument group Lead from WIT, not necessarily MESA Engineers, once science concept is formulated Nominal process (still evolving) WG scientists meet and converge on science concept WG solicits comments from engineers and entire WIT WG lead finalizes recommendations Engineers develop engineering concept WG meets with engineers to finalize unified concept Engineers generate requirements/PRs

9. 9 WIT Working Group Domains I&TCoordinate INS support for ISIM ground tests ETC Fundamental equations, Observing strategies, Science concept for interface (SCAMP) Proposal Proximity targets, Mosaic tool, Observing template complexity, User support Operations Coordinate instrument operations working groups, Support onboard script development schedule CalibrationCalibration algorithms, Commissioning activities PipelinePipeline specification and testing, Data products SID ArchiveGather metadata, Prepare data, User interface EfficiencySODRM, Mechanism use, Overheads, Data volume Coronagraphy, Backgrounds, Exoplanets,...

10. 10 WIT Working Group Scientists https://confluence.stsci.edu/display/JWST/MESA+Working+Groups

11. 11 What about Hubble? HST work in MESA ETC, CDBS/CRDS [Rossy] WFC3 pipeline, HLA source catalogs [Lou] Cross-Instrument working groups Astrodrizzle Enhanced spectroscopy products [Alessandra] Astrometry? Cross-Mission Projects CDBS  CRDS (reference files/data) OPUS  OWL (workflow manager based on Condor) Define system based on JWST needs and new technology Implement first for HST, retire risks for JWST deployment