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JWST Data Management Systems

Gretchen Greene

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JWST Mission Hierarchy for DMS

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DMS Estimated Archived Data Volumes – Baseline

Data Per Yr (TB)

5.5 yr Mission (TB)

10 yr Mission (TB)

Recorded engineering

0.3 1.6 3.0

Level-0 20.9 115.0 209.0

Level-1a 20.9 115.0 209.0

Level-1b 20.9 115.0 209.0

Level-2a (compressed 2:1)

1.0 5.6 10.2

Level-2b (compressed 2:1)

1.0 5.6 10.2

Level-3 (compressed 2:1)

1.0 5.6 10.2

WSS Archive package (compressed 2:1)

0.05 0.25 0.5

Total 66.1 363.7 661.1

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JWST DMS Interface Context

Project Level Agreements will be defined ~L-24mo

Dec 6-7. 2012

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JWST vs. HST DMS…Many Similarities, systems reuse (DADS, MAST), and

lessons learned, however there are…• Key Basic Differences:

– Order of magnitude increase in computational and I/O DMS throughputs

– Flight Operations System interfaces to DMS will support direct transfer at STScI of DSN telemetry data and require priority data processing for Wavefront Sensing and Control

• Functional Decisions:– As a result of Trade Studies, BOTH HST and JWST will be moving

toward scalable distributed architecture• Data Processing Workflow Management system (OWL-CONDOR)• Dynamic Reprocessing of Data Products with CRDS• Online Data Product File CACHE

– Higher Level data product generation assumed fundamental– Service based architecture to support multi-mission DMS

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MAST + JWST

• STScI Archive Access systems include the intersection between the JWST mission operations & MAST– Distribution Services– Archive User Interface (MAST Portal)– User Authentication– Archive Catalog (CAOM)– Online Data Product Cache

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Multi mission Functional Architecture Overview – SDR1

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JWST SOC DMSRequirements and Design Phases

• Completed formal Systems Level 4 Requirements– ~ 650 requirements for I&T verification

• Beginning DMS I&T for internal Build 1• Currently in year 2+ of design and development

– Systems Design Review 2 – Dec 6-7, ’12

• Designing for Launch Readiness Data (LRD) 2018 with 95% level of current STScI DMS capability

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S&OC Science Systems Engineering, Flight Operations, and Systems Development Timeline for a JWST 2018 LRD

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DMS Build PlanBuild Name

Build Description

Components enabled Supported Systems

TargetedDelivery

Status

0 Internal Build Workflow Manager, Minimal Ramp Processing Pipeline, SID

DMS Design & Development

Dec-11 Completed

1 DMS Level 1 Internal I&T

DMS Workflow, Baseline Level-2a Pipeline, Baseline Level-2b Imaging Pipeline, CRDS, SID, Baseline SDP-1a

DMS, ISIM CV1RR

Sept-12 In Test

2 DMS I&T

ISIM Cryo 2 (OSIM)

DMS SDP WFS&C, Baseline WSS Pipeline, Baseline Level-2b Spectrographic Pipeline, SID , Baseline SDP-1b

DMS, ISIM Cryo 2

Sept-13 In Dev

3 DMS I&T

ISIM Cryo 3 (OSIM)

DMS - All SIs SDP, Baseline Operations Archive, Baseline Level-3 Imaging Pipeline, SID

DMS, ISIM Cryo 3 (?)

Sept-14

4DMS I&T SOC

Integration

DMS, CAL, SDP, EDP, CRDS, SID. Partial Baselines for Archive Access, Level 2 Spectrographic

SOC with DMS internal

Sept-15

5 DMS I&TJSC/OTIS

DMS, CAL, SDP, EDP, CRDS, Baseline Archive Access, Baseline Level-3 Spectrographic Pipeline, SID

SOC1,DMS, JSC/OTIS Testing

June-16

6 DMS CST2&3

+ Flight Release Fully Functional DMS SOC2,DMS

Flight Release Feb-17 (test cycle

+L-12)

6.1DMS Pre-Flight

UpdatesFully Functional DMS Updates SOC Pre-Flight

UpdatesJan-18