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Mission Design Problems for the Spectrum-Roentgen-Gamma Projectстатья
Информация о цитировании статьи получена из
Scopus,
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 30 июня 2021 г.
- Авторы: Nazirov R.R., Eismont N.A., Aref’yev V.A., Korotkov F.V., Pogodin A.V., Mikhailov E.A., Mzhelsky P.V., Tregubov A.I., Ditrikh A.V.
- Журнал: Cosmic Research (English translation of Kosimicheskie Issledovaniya)
- Том: 57
- Номер: 1
- Год издания: 2019
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 61
- Последняя страница: 67
- DOI: 10.1134/s0010952519010076
- Аннотация: The Spectrum-Roentgen-Gamma (SRG) project is intended for surveying the entire sky in theX-ray band using two telescopes mounted onboard the spacecraft of the same name (SRG). In addition, somespecially chosen areas of the sky and some radiation sources are planned to be investigated after the completion of the survey. The spacecraft was planned to be launched in 2018 into the vicinity of solar-terrestrial collinear libration point L2, using the Proton-M launch vehicle with a DM-03 block upper stage. The technology for completely surveying the celestial sphere consists in scanning by rotating the parallel axes of telescopesaround the spacecraft axis, which roughly followed the direction to the Sun. The measurement data, storedonboard the spacecraft, would then be transmitted to the ground receiving stations using the mean gainantenna, the axis of which coincided with the spacecraft’s axis of rotation. This imposed some constraints onthe mission design. These constraints included the permissible amplitude of the trajectory of spacecraftmotion relative to the libration point in the direction orthogonal to the Sun–Earth line. In addition, the consumption of the onboard propellant was allowed only for orbit correction needed for keeping the spacecraftnear the libration point. In this connection, a method was developed using the upper stage in order todecrease the mentioned amplitude down to acceptable values, in the conditions of the requirements imposedon the unit. The paper presents an assessment of its effectiveness.
- Добавил в систему: Мжельский Павел Владимирович