Validation of a CCD cosmic ray event simulator against Gaia in-orbit data

[en] ESA's astrometry mission Gaia was launched in 2013 to establish the most accurate and complete map of the Milky Way by. measuring the distance, position, proper motion, and astrophysical characteristics of two billion stars. It contains the largest focal plane ever own in space comprising 106 CCDs. To downlink to Earth only useful data, an on board algorithm was designed to discriminate between e.g. stars and cosmics- ionizing tracks left by energetic particles. A cosmic ray event generation simulator was developed to train and optimize this on-board source detection algorithm. We can now validate this model against Gaia data.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Garcia, Lionel ; European Space Agency, ESTEC

Prod'homme, Thibaut; European Space Agency, ESTEC

Lucsanyi, David; European Space Agency, ESTEC

Short, Alex; European Space Agency, ESTEC

Santin, Giovanni; European Space Agency, ESTEC

Vuolo, Marco; European Space Agency, ESTEC

Crowley, Cian; European Space Agency, ESAC

Abreu, Asier; European Space Agency, ESAC

Kohley, Ralf; European Space Agency, ESAC

Lemmel, Frederic; European Space Agency, ESTEC

Smith, Hans; European Space Agency, ESTEC

De Bruijne, Jos; European Space Agency, ESTEC

Language :

English

Title :

Validation of a CCD cosmic ray event simulator against Gaia in-orbit data

Publication date :

July 2018

Event name :

SPIE Astronomical Telescopes + Instrumentation,

Event date :

16 July 2018

Audience :

International

Journal title :

Proceedings of SPIE: The International Society for Optical Engineering

ISSN :

0277-786X

eISSN :

1996-756X

Publisher :

International Society for Optical Engineering, Bellingham, United States - Washington

Available on ORBi :

since 25 August 2021

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Bibliography

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