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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave

ISBN

9781510653429

ISSN

1996-756X

e-ISSN

1996-756X

Počet stran výsledku

11

Strana od-do

121803E

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

Montréal

Datum konání akce

17. 7. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000865466600094