Day 1 Optical Design & Performance

Implementation

Day 2 Design Session

EIS interfaces

Spacecraft Interfaces

Future Business

Tour of NRL Facilities
 
 

(begin at 9 am)

Optical Design & Performance

The EIS optical design GAD (chair)

Design/optimisation criteria CK 20m

Optimisation ray trace code RT 20m

Properties of the 7T design CK 20m

(coffee)

exploring EIS parameter space: various cases CK 30m

Scientific performance

Modelling EIS spectral resolution: various cases KD 10m

Technical feasibility

NASA/GSFC experience in grating fabrications JD & RT 10m

Discussion All 45m
 
 

(Lunch)
 
 

Implementation

List of subsystems 5m MWT

(based on EIS-sys-des-hiearc)

Technology review

(for each subsystem)

Manufacturing process

Suppliers or in-house experience

Sources of technical risk

Information needed to complete design

Need for prototypes

Structure SM

Concepts / designs

Composite material thermal tests (JS)

Interfaces to optical subassemblies

Envelope

Accomodation of mechanisms

Launch lock

Mounting points (s/c legs)

Purge ports, outgassing paths

Mechanisms / electronics

Location CK

Disturbance torques "

Power requirements "

Harness routing

Unresolved Items

make a list
 
 

Design Session All

Structure

envelope SM

main member position SM

Subsystem accomodation

DOR SM

FIL CK

MIR CK

SLT CK

SHT MWT

GRA CK

FPA MWT

QCM JL?

other items

Unresolved items

review list

assign action items

EIS interfaces

Framework MWT

Interface list

Format for interface data

Axes definition

Drawing interchange

Specific Items

Detail of interface data

Mass budget review

Power budget review

Schedule for instrument design

Schedule for interface defintion

Spacecraft interfaces

Framework

Subsystems with s/c interface MWT

S/c i'face docs/design standards HH

Mathematical models HH

Specific Items

EIS s/c interface docs review MWT

Schedule for spacecraft design HH

Future business

Spacecraft design HH

Instrument design MWT

Review of Actions MWT

Phase A activities

Design reviews

Consortium Meetings MWT

Tour of facilities
 
 
 
 

Notes

1 Objectives for dicsussion on optical design

Validity of design principles

Assess scientific value of design

Preferred nomencalture for wavelength ranges

(mwt suggests Baseline=>LW NRL1=>SW)

Agree essential points of design

Items for further study

2 The subsystems are :

STR Structure SM

DOR Door SM

FIL Entrance Filter & Clamshell CK

MIR Primary Mirror Assembly CK

SLT Slit Assembly CK

SHT Shutter MWT

GRA Grating CK

FPA Focal Plane Assembly MWT

QCM Contamination Monitor JL?

3 The interface list is

(to follow) MWT

4 The s/s interface subsystems are

(to follow) MWT