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The State of Prototyping Key Nodes of the Space Gravitational-Wave Antenna SOIGA

S. S. Donchenko, R. A. Davlatov, D. A. Sokolov, E. A. Lavrov, I. O. Skakun

Transactions of IAA RAS, issue 56, 3–13 (2021)

Keywords: gravitational wave, gravitational wave antenna, SOIGA, ground-based model

Abstract

To register gravitational waves in the range from 0.01 to 1 Hz, a project of a space gravitational-wave antenna on the GLONASS geocentric orbit called “SOIGA” has been proposed. The antenna consists of 12 spacecrafts located in three GLONASS orbital planes. In this article, the main SOIGA units are considered: an inter-satellite high-precision interferometric laser and a “drag-free satellite” system. The paper describes a functional diagram of an inter-satellite optical interferometric system. On its basis, a ground-based model was developed. The first experimental results show the measurement accuracy of the interferometric system at a level of ± 0.5 nm. The article proposes a combined method for measuring the position of the onboard test mass in the “drag-free satellite” system. A semi-natural ground stand with a test mass suspension has been proposed and developed. The accuracy of the capacitive measuring system was estimated as ~ 1.3 nm. Based on the results of experimental studies, the directions of further development of the models of the main the SOIGA units are determined.

Citation

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S. S. Donchenko, R. A. Davlatov, D. A. Sokolov, E. A. Lavrov, I. O. Skakun. The State of Prototyping Key Nodes of the Space  Gravitational-Wave Antenna SOIGA // Transactions of IAA RAS. — 2021. — Issue 56. — P. 3–13.

@article{donchenko2021,
  abstract = {To register gravitational waves in the range from 0.01 to 1 Hz, a project of a space gravitational-wave antenna on the GLONASS geocentric orbit called “SOIGA” has been proposed. The antenna consists of 12 spacecrafts located in three GLONASS orbital planes. In this article, the main SOIGA units are considered: an inter-satellite high-precision interferometric laser and a “drag-free satellite” system.
The paper describes a functional diagram of an inter-satellite optical interferometric system. On its basis, a ground-based model was developed. The first experimental results show the measurement accuracy of the interferometric system at a level of ± 0.5 nm.
The article proposes a combined method for measuring the position of the onboard test mass in the “drag-free satellite” system. A semi-natural ground stand with a test mass suspension has been proposed and developed. The accuracy of the capacitive measuring system was estimated as ~ 1.3 nm.
Based on the results of experimental studies, the directions of further development of the models of the main the SOIGA units are determined.},
  author = {S.~S. Donchenko and R.~A. Davlatov and D.~A. Sokolov and E.~A. Lavrov and I.~O. Skakun},
  doi = {10.32876/ApplAstron.56.3-13},
  issue = {56},
  journal = {Transactions of IAA RAS},
  keyword = {gravitational wave, gravitational wave antenna, SOIGA, ground-based model},
  pages = {3--13},
  title = {The State of Prototyping Key Nodes of the Space  Gravitational-Wave Antenna SOIGA},
  url = {http://iaaras.ru/en/library/paper/2078/},
  year = {2021}
}

TY  - JOUR
TI  - The State of Prototyping Key Nodes of the Space  Gravitational-Wave Antenna SOIGA
AU  - Donchenko, S. S.
AU  - Davlatov, R. A.
AU  - Sokolov, D. A.
AU  - Lavrov, E. A.
AU  - Skakun, I. O.
PY  - 2021
T2  - Transactions of IAA RAS
IS  - 56
SP  - 3
AB  - To register gravitational waves in the range from 0.01 to 1 Hz, a
project of a space gravitational-wave antenna on the GLONASS
geocentric orbit called “SOIGA” has been proposed. The antenna
consists of 12 spacecrafts located in three GLONASS orbital planes.
In this article, the main SOIGA units are considered: an inter-
satellite high-precision interferometric laser and a “drag-free
satellite” system.  The paper describes a functional diagram of an
inter-satellite optical interferometric system. On its basis, a
ground-based model was developed. The first experimental results show
the measurement accuracy of the interferometric system at a level of
± 0.5 nm.  The article proposes a combined method for measuring the
position of the onboard test mass in the “drag-free satellite”
system. A semi-natural ground stand with a test mass suspension has
been proposed and developed. The accuracy of the capacitive measuring
system was estimated as ~ 1.3 nm.  Based on the results of
experimental studies, the directions of further development of the
models of the main the SOIGA units are determined.
DO  - 10.32876/ApplAstron.56.3-13
UR  - http://iaaras.ru/en/library/paper/2078/
ER  -