Mission Engineering and Science Analysis (MESA)

Jeff Valenti

What is MESA?

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2012 Instruments Division Reorganization

NIRISS

NIRCamNIRSpec

MIRI

MESATELWIT

COS/STISACS

WFC3

RIABTEL

COS/STISACS

WFC3

RIAB

before after “WIT split”

HSTJWST

Cross Mission

We still use “WIT” to refer to JWST teams + MESA (+ TEL)

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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 and engineers at STScI

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JWST

HST

ODL

Tom WheelerChris LongDave HickeyAudrey DiFeliceJohn Bacinski ENG

MESA Originally Included Instrument Engineers

Moved to new Flight Operations Branch (FOB)Steve Vaclavik, Wayne Baggett, Ray Wright, ...

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JWST

HSTODL

LouStrolger

RossyDiaz

VanDixon(NIRISS)

BillBlairHarry

(SMO)

DougLongBrianYork(HST)

EddieBergeron

Mike

RachelAnderson

(MIRI)

MESA

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Customary to show a picture of the instrument...

SM 1SM 2

MESA “Instrument”

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And the important components inside...

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WIT Working Group Concept

ParticipantsRepresentative from each WIT instrument groupLead from WIT, not necessarily MESAEngineers, once science concept is formulated

Nominal process (still evolving)WG scientists meet and converge on science conceptWG solicits comments from engineers and entire WIT WG lead finalizes recommendationsEngineers develop engineering conceptWG meets with engineers to finalize unified conceptEngineers generate requirements/PRs

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WIT Working Group Domains

I&T Coordinate INS support for ISIM ground testsETC Fundamental equations, Observing strategies,

Science concept for interface (SCAMP)Proposal Proximity targets, Mosaic tool, Observing template

complexity, User supportOperations Coordinate instrument operations working groups,

Support onboard script development scheduleCalibration Calibration algorithms, Commissioning activitiesPipeline Pipeline specification and testing, Data productsSID Archive Gather metadata, Prepare data, User interfaceEfficiency SODRM, Mechanism use, Overheads, Data

volume

Coronagraphy, Backgrounds, Exoplanets, ...

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WIT Working Group Scientists

https://confluence.stsci.edu/display/JWST/MESA+Working+Groups

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What about Hubble?

HST work in MESAETC, CDBS/CRDS [Rossy]WFC3 pipeline, HLA source catalogs [Lou]

Cross-Instrument working groupsAstrodrizzleEnhanced spectroscopy products [Alessandra]Astrometry?

Cross-Mission ProjectsCDBS CRDS (reference files/data)OPUS OWL (workflow manager based on Condor)Define system based on JWST needs and new technologyImplement first for HST, retire risks for JWST deployment