Draft GRUVI - Draft 1

SW GEO EUVI SPEC

SWGEO-EUVI-REQ-0005, Revision Effective Date: TBD

SW GEO Series Project Extreme Ultraviolet Imager (EUVI) Requirements Specification (SPEC)
Signature/Approval Page
Prepared by:
Jim Buchheit
Reviewed by:
John Deily
Jeffrey Kronenwetter
Gustave Comeyne
Stephen Husty
Gregory Yoblin
Erin Lynch
Approved by:
Eugene Guerrero-martin

Electronic Approval available on-line at: TDMS https://ipdtdms.gsfc.nasa.gov/frontmenu_dsp.cfm

ii

Check https://ipdtdms.gsfc.nasa.gov/frontmenu dsp.cfm to verify that this is the correct version prior to use.

SW GEO EUVI SPEC

SWGEO-EUVI-REQ-0005, Revision Effective Date: TBD

Preface
This document is under SW GEO Series project configuration control. Once this document is approved, SW GEO Series project-approved changes are handled in accordance with Class I and Class II change control requirements as described in the SW-GEO Configuration Management Procedures, and changes to this document shall be made by complete revision. Any questions should be addressed to:
SW GEO Series Project Configuration Management Office

NASA/GSFC

Code 495.0
Greenbelt, MD 20771

iii

Check https://ipdtdms.gsfc.nasa.gov/frontmenu dsp.cfm to verify that this is the correct version prior to use.

SW GEO EUVI SPEC

SWGEO-EUVI-REQ-0005, Revision Effective Date: TBD

Change History Log
Revision
Revision -

Effective
Date

Description of Changes
(Reference the CCR & CCB/ERB Approval Date)

iv

Check https://ipdtdms.gsfc.nasa.gov/frontmenu dsp.cfm to verify that this is the correct version prior to use.

SW GEO EUVI SPEC

SWGEO-EUVI-REQ-0005, Revision Effective Date: TBD

The observatory will be selected to operate in a TBD orbit of either:

EUVISPEC77

1. A Lissajous orbit around the Sun-Earth L1 with a
Sun-Earth-Vehicle (SEV) angle no greater than 13
degrees and no less than 4 degrees. Normal on-orbit
operations will entail periodic station keeping
maneuvers that keep the satellite within the Lissajous
orbit; or
2. A geosynchronous orbit (semi-major axis of
approximately 42,164 km) in a TBS longitude
between 75° to 137° W longitude. Normal on-orbit
operations will entail periodic station keeping
maneuvers that keep the satellite within a TBD
inclination about the equator and within TBD of the
on-station longitude

EUVISPEC4.3.3

The EUVI shall survive a spacecraft attitude anomaly
resulting in the sun sweeping through the field-of-view (FOV) of the instrument radiator from “horizon to horizon” at