Solar-B EIS

Meeting Arrangements

Time and Place

From 9am Tuesday January 26, 1999, NRL, Washington DC, Bdg 43 (Management information Center) 2^nd floor

Affiliation

Attendee email address

(alphabetical order)

Birmingham University

Saad Mahmoud sm@star.sr.bham.ac.uk

George Simnett gms@star.sr.bham.ac.uk

Cambridge University

Helen Mason h.e.mason@damtp.cam.ac.uk

MSSL, UCL

Len Culhane jlc@mssl.ucl.ac.uk

Louise Harra-Murnion lkhm@mssl.ucl.ac.uk

Matthew Whyndham mwt@mssl.ucl.ac.uk

NAOJ

Hirohisa Hara hara@solar.mtk.nao.ac.jp

NASA-GSFC

Joe Davila davila@lindsay.gsfc.nasa.gov

NASA-MSFC

Larry Hill Larry.Hill@msfc.nasa.gov

NRL

Ken Dere dere@halcyon.nrl.navy.mil

George Doschek doschek@sola.nrl.navy.mil or george.doschek@nrl.navy.mil ?

Uri Feldman

Clarence Korendyke koren@cyclops.nrl.navy.mil

John Mariska mariska@dogwood.nrl.navy.mil

John Seely john.seely@nrl.navy.mil

RAL

Richard Harrison r.harrison@rl.ac.uk

Jim Lang j.lang@rl.ac.uk

Agenda Items
Day 1 - Tuesday 26th January

Introduction

9am. Dr. Timothy Coffey, the NRL Director of Research, will welcome the Solar-B Team.

1. Status

Opening remarks JLC

Conclusion of the US selection process - what of the NRL proposal is still proposed? GAD

Kick-off meeting at ISAS, March 99 HH

2. Science

Review of major science goals JLC/GAD/HH

The Four Wavebands: Science & Countrates KPD/LKHM/All

referring to : line lists with countrates and EIS studies (UK/J) as detailed in "EIS science notes" http://www.mssl.ucl.ac.uk/solar-b/docs/sci/notes4.html and http://www.mssl.ucl.ac.uk/www_solar/solarb/eis_wave.html

SERTS observations of HeII JD/

Value of HeII as a transition region line

(comments about CDS experience would be welcome) RAH?

Multilayers at 400 A JFS

What are the prospects for observations in this region?

3. Instrument (telescope) configuration

The NRL Cassegrain Telescope/Spectrometer CK

its properties, advantages, and problems)

Some questions which may arise include …

What are the mechanisms and their nature? (e.g. disturbing torques) NRL

Is there a slit exchange mechanism or a slit/slot? "

Are there focus adjustment mechanisms? "

What are the positional tolerances of the components? "

Is there, or is there a need for, an optical metering subsystem? "

What does the focal surface of the grating look like? "

What are the assumed detector properties (pixel size and format)? "

(Available EEV CCD formats MSSL)

The Baseline (aka trendy) instrument HH?

Other instrumental drivers

Filter (Al) transmission curves JFS
Calculation of Multilayer reflectances. Performance of real-world ML's JFS/JD
Grating configuration (groove reflectivity vs wavelength & order, multiple waveband) JFS

4. Selection of EIS Science and Instrumentation

Discussion, with the aim of reaching a decision on the wavebands and telescope type, or at least develop a plan for reaching such a decision by the March meeting in Japan. All

Chair - JLC

Day 2 - Wednesday 27^th January, 1999

5. Technical Topics

5.1 Spacecraft resources

Mass, envelope, power, resonances, telemetry, thermal properties, pointing HH

5.2 Structure

vacuum vessel or purged ? Summary of tradeoffs SM?

use of clamshell-protected entrance filter

materials

tolerances
outgassing

5.3. Detectors

CCD detector performance MW

Progress with breadboard hardware

5.4 Electronics

System block diagram MW

Operating concepts, data flow, processing cycle /HH

Interface philosophy

MDP interfaces

5.5. General Topics

Alignment, Calibration -> Performance Verification Plan All

Methods of achieving instrument performance - including modelling, subsystem testing and calibration activities

Cleanliness -> Contamination Control Plan - seek LASCO & CDS experience MW/CK?

Subsystem requirements that flow from contamination control methods

6. Technology Management

6.1. Management Plans

Technical coordination in/across institutes MW/All

Common management plan?

Common development teams (SDT / IPDT) ?

Communications:
- Points of contact,
- exchange of documents etc.

6.2. Technical Coordination

Need to discuss/agree on the following:

information to be determined during Phase A about each system interface and approximate times (i.e. agree on the format of the interface documents, including the spacecraft interface control document).

System block diagram and interface list, including spacecraft interfaces

6.3. Events in the Near-future

Kick-off meeting in Japan.

Phase A : Scope and duration

Timing, scope and attendance of Future reviews -
Requirements Review, Preliminary Design Review

7. Resolution of outstanding issues

7.1 Assignment of hardware responsibilities

7.2. Review of actions etc

7.3. Discussion of schedule

8. Conclusion

8.1. Any other business

8.2. Date of next meeting