In-flight Metis radiometric performance verification using the light retro-reflected from its door

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F22%3A00566610" target="_blank" >RIV/67985815:_____/22:00566610 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1117/12.2631515" target="_blank" >http://dx.doi.org/10.1117/12.2631515</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2631515" target="_blank" >10.1117/12.2631515</a>

Result language
angličtina
Original language name
In-flight Metis radiometric performance verification using the light retro-reflected from its door
Original language description
Metis is the coronagraph on board the Solar Orbiter ESA/NASA mission, it is designed to study the solar corona by providing an artificial solar eclipse. Metis features two channels: the ultraviolet H I (121.6 nm) and the visible light (580-640 nm). This work is focalised on the latter. Radiometric performances have been tested on-ground using a flat-field panel (uniform illumination), and the in-flight stability can be verified through the light reflected from the instrument door. When the Sun light impacts on the spacecraft shield, a fraction is reflected in the direction of the door, which then partly reflects it inside Metis. The analysis of the door images confirms its integrity and that of its subsequent optical components, since the reflected intensity follows as expected a 1/r(2) law, r being the Sun-spacecraft distance. Further analysis is being performed on such images to verify the operating status of various elements of Metis. Complementary ray-tracing simulation studies on the door retro-reflectivity properties are also in progress.
Czech name
—
Czech description
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Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave
ISBN
9781510653429
ISSN
1996-756X
e-ISSN
1996-756X
Number of pages
11
Pages from-to
121803E
Publisher name
SPIE
Place of publication
Bellingham
Event location
Montréal
Event date
Jul 17, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000865466600094

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