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  SRG/eROSITA status and operations during the first four all-sky surveys

Coutinho, D., Ramos-Ceja, M. E., Dennerl, K., Haberl, F., Meidinger, N., Merloni, A., et al. (2022). SRG/eROSITA status and operations during the first four all-sky surveys. In Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray. doi:10.1117/12.2628946.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000C-9F03-E Version Permalink: https://hdl.handle.net/21.11116/0000-000C-9F04-D
Genre: Conference Paper

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 Creators:
Coutinho, D.1, Author           
Ramos-Ceja, M. E.2, Author           
Dennerl, K.2, Author           
Haberl, F.2, Author           
Meidinger, N.2, Author           
Merloni, A.2, Author           
Predehl, P.2, Author           
Stewart, I.2, Author           
Freyberg, M.2, Author           
Bornemann, W.2, Author           
Brunner, H.2, Author           
Burwitz, V.2, Author           
Czesla, S., Author
Eder, J.2, Author           
Friedrich, S.3, Author           
Gaida, R.2, Author           
Gueguen, A.2, Author           
Hartner, G.2, Author           
Kink, W.2, Author           
Kreykenbohm, I., Author
Lamer, G., AuthorMaitra, C.2, Author           Mernik, T., AuthorMueller, S.4, Author           Nandra, P.2, Author           Pfeffermann, E.2, Author           Robrade, J., Author more..
Affiliations:
1MPI for Extraterrestrial Physics, Max Planck Society, ou_159888              
2High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society, ou_159890              
3Infrared and Submillimeter Astronomy, MPI for Extraterrestrial Physics, Max Planck Society, ou_159889              
4Plasma Edge and Wall (E2M), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856327              

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 Abstract: eROSITA (extended ROentgen Survey with an Imaging Telescope Array) is the soft X-ray scientific payload on board the SRG (Spektrum-Roentgen-Gamma) mission. It was successfully launched from Baikonur in July 2019. Following a 101 days cruise phase, SRG reached its final orbit around the Sun-Earth Lagrangian point L2, from where it has carried out already four full-sky surveys. eROSITA is a complex instrument composed of seven identical co-aligned X-ray telescopes with a focal length of 1600mm and an aperture of 350mm. Each telescope is equipped with an independent CCD camera. The cold redundant ITC (Interface and Thermal Controller) manages all seven cameras as well as the thermal control of the telescope and the interface to the spacecraft. The cruise phase of SRG was used to verify that all systems had survived launch and no degradation in the functionality was present. Following that, the main science mission, comprised of an early Calibration and Performance Verification Phase, followed by the all-sky survey. This paper presents the performance of the eROSITA telescope during the first four complete all-sky surveys. It presents the challenges encountered during the telescope operations as well as the operations and mitigation strategies put in place to understand or minimize the effects of the space environment in L2, such as micrometeoroid hits and radiation damage of the detectors.

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Language(s): eng - English
 Dates: 2022-08-31
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1117/12.2628946
 Degree: -

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Title: SPIE Astronomical Telescopes + Instrumentation,
Place of Event: Montréal, Québec, Canada
Start-/End Date: 2022-07-17 - 2022-07-23

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Title: Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray
Source Genre: Proceedings
 Creator(s):
Nakazawa, Kazuhiro, Author
Nikzad, Shouleh , Author
A. den Herder, Jan-Willem , Author
Affiliations:
-
Publ. Info: -
Pages: - Volume / Issue: 12181 Sequence Number: - Start / End Page: - Identifier: -

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Title: Proceedings of SPIE
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Publ. Info: Bellingham, WA, USA : Society of Photo-Optical Instrumentation Engineers
Pages: - Volume / Issue: - Sequence Number: 121811A Start / End Page: - Identifier: ISSN: 0277-786X