Mission Engineering and Science Analysis (MESA)

Jeff Valenti

What is MESA?

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2012 Instruments Division Reorganization

NIRISS

NIRCam

NIRSpec

MIRI

MESA

TEL

WIT

COS/STIS

ACS

WFC3

RIAB

TEL

COS/STIS

ACS

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)

DougLong

BrianYork(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 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

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WIT Working Group Domains

I&T Coordinate 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

Calibration Calibration algorithms, Commissioning activities

Pipeline Pipeline specification and testing, Data products

SID Archive Gather metadata, Prepare data, User interface

Efficiency 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 groupsAstrodrizzle

Enhanced 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 technology

Implement first for HST, retire risks for JWST deployment