JWST Functional Flow Diagrams
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JWST Functional Flow Diagrams and Schematic Block Diagrams. JWST Operational Phases and System Functional Breakdown. Approval to ship to the Launch Site. Final Count Down Start. Observatory Sep from LV. Primary & Secondary Mirror Deployment. Observatory Commissioned. Deployment

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JWST Functional Flow Diagrams and Schematic Block Diagrams

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Jwst functional flow diagrams and schematic block diagrams

JWST Functional Flow Diagramsand Schematic Block Diagrams


Jwst operational phases and system functional breakdown

JWST Operational Phases and System Functional Breakdown

Approval to ship

to the Launch Site

Final Count

Down Start

Observatory

Sep from LV

Primary & Secondary

Mirror Deployment

Observatory

Commissioned

Deployment

& Trajectory

Correction Phase

Cruise &

Commissioning

Phase

Normal Science

Operations Phase

Pre-Launch Phase

Launch Phase


Jwst phases and system functional breakdown

JWST Phases and System Functional Breakdown

Approval to ship

to the Launch Site

Final Count

Down Start

Observatory

Sep from LV

Primary & Secondary

Mirror Deployment

Observatory

Commissioned

Deployment

& Trajectory

Correction Phase

Cruise &

Commissioning

Phase

Normal Science

Operations Phase

Pre-Launch Phase

Launch Phase

Perform Fault Detection and Correction

Collect, Process & Store Engineering Data

Downlink Engineering Data

Evaluate and Trend Engineering Data

Plan Engineering Activities

Uplink Commands

Process, Store & Distribute Commands

Determine Orbit

&

Generate and Distribute Power

Maintain Observatory Temperatures

Protect Observatory Components from Environments


Jwst phases and system functional breakdown1

Collect, Process & Store Engineering Data

Downlink Engineering Data

Evaluate and Trend Engineering Data

Plan Engineering Activities

Uplink Commands

Process, Store & Distribute Commands

JWST Phases and System Functional Breakdown

Approval to ship

to the Launch Site

Final Count

Down Start

Observatory

Sep from LV

Primary & Secondary

Mirror Deployment

Observatory

Commissioned

Deployment

& Trajectory

Correction Phase

Cruise &

Commissioning

Phase

Normal Science

Operations Phase

Pre-Launch Phase

Launch Phase

Separate

from LV

Deploy SA and

Acquire Sun

Deploy

HGA

Null Rates

Deploy Aft

& Forward

Sunshield

Deploy

OTE

Tower

Perform

MCC1

Deploy

Sunshield

Deploy

SMSS

Deploy

PM Wings

Determine Orbit

Perform Fault Detection and Correction

Manage Observatory Momentum

&

Point the Observatory

Generate and Distribute Power

Maintain Observatory Temperatures

Protect Observatory Components from Environments


Jwst phases and system functional breakdown2

Collect, Process & Store Engineering Data

Downlink Engineering Data

Evaluate and Trend Engineering Data

Plan Engineering Activities

Uplink Commands

Process, Store & Distribute Commands

JWST Phases and System Functional Breakdown

Approval to ship

to the Launch Site

Final Count

Down Start

Observatory

Sep from LV

Primary & Secondary

Mirror Deployment

Observatory

Commissioned

Deployment

& Trajectory

Correction Phase

Cruise &

Commissioning

Phase

Normal Science

Operations Phase

Pre-Launch Phase

Launch Phase

OTE WF Alignment and Phasing

ISIM and SI Initialization and Calibration

Determine Orbit

Perform MCC2

Perform MCC2

Perform L2 Orbit Insertion

Perform Fault Detection and Correction

Manage Observatory Momentum

&

Acquire Targets

Maintain Fine Pointing

Small / Medium Angle Maneuver

Point the Observatory

&

Manage Vibration

Generate and Distribute Power

Maintain Observatory Temperatures

Protect Observatory Components from Environments


Jwst phases and system functional breakdown3

Collect, Process & Store Engineering Data

Downlink Engineering Data

Evaluate and Trend Engineering Data

Plan Engineering Activities

Uplink Commands

Process, Store & Distribute Commands

JWST Phases and System Functional Breakdown

Approval to ship

to the Launch Site

Final Count

Down Start

Observatory

Sep from LV

Primary & Secondary

Mirror Deployment

Observatory

Commissioned

Deployment

& Trajectory

Correction Phase

Cruise &

Commissioning

Phase

Normal Science

Operations Phase

Pre-Launch Phase

Launch Phase

Perform Science Observations

Process

/ Store

Science

Data

Ground

Process

Science

Data

Plan

Science

Operations

Uplink

Observation

Plan

Generate

Observation

Plan Cmds

Downlink

Science

Data

Perform SI Calibrations

&

Perform WFSC

Determine Orbit

Perform Orbit Maintenance

Perform Fault Detection and Correction

Manage Observatory Momentum

&

Acquire Targets

Maintain Fine Pointing

Small / Medium Angle Maneuver

Slew the Observatory

&

Manage Vibration

Generate and Distribute Power

Maintain Observatory Temperatures

Protect Observatory Components from Environments


Jwst communications system architecture

NASA Integrated Services Network (NISN)

JWST Communications System Architecture

Observatory

Segment

  • The launch vehicle injects observatory into an L2 transfer trajectory

  • The observatory operates at L2 point for 5 years with a goal of 10 years, providing imagery and spectroscopy in the Near and Mid Infrared wavebands.

  • The Ground Segment receives downloads of science data and sends command uploads during daily 4 hour contacts

  • Ground Segment uploads plans to the Observatory ~once a week and the observatory autonomously executes these plans

L2 Lissajous Orbit

L2 Point

L2 Transfer Trajectory

STScI Science & Operations

Center (S&OC)

Observatory

Simulators

(OTB/STS)

Operations

Script

Subsystem

(OSS)

NASA Provided

Communication

Asset for Early

Orbit Phase

JPL

Deep Space

Network

(DSN)

Madrid

Goldstone

Canberra

Flight

Operations

Subsystem

(FOS)

Project

Reference DB

Subsystem

(PRDS)

Wavefront

Sensing &

Control Exec

(WFSC Exec)

GSFC

Flight

Dynamics

Facility (FDF)

Launch

Segment

Data

Management

Subsystem

(DMS)

Proposal

Planning

Subsystem

(PPS)

Ground Segment


Observatory schematic block diagram

Observatory Schematic Block Diagram


Jwst phases and system functional breakdown4

Collect, Process & Store Engineering Data

Downlink Engineering Data

Evaluate and Trend Engineering Data

Plan Engineering Activities

Uplink Commands

Process, Store & Distribute Commands

Determine Orbit

Perform Orbit Maintenance

JWST Phases and System Functional Breakdown

Approval to ship

to the Launch Site

Final Count

Down Start

Observatory

Sep from LV

Primary & Secondary

Mirror Deployment

Observatory

Commissioned

Deployment

& Trajectory

Correction Phase

Cruise &

Commissioning

Phase

Normal Science

Operations Phase

Pre-Launch Phase

Launch Phase

Perform Fault Detection and Correction

Manage Observatory Momentum

Point the Observatory

And

Generate and Distribute Power

Maintain Observatory Temperatures

Protect Observatory Components from Environments


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