| Форма представления | Статьи в зарубежных журналах и сборниках |
| Год публикации | 2023 |
| Язык | английский |
|
Бикмаев Ильфан Фяритович, автор
|
| Библиографическое описание на языке оригинала |
Khamitov I.M, Bikmaev I.F., High-precision Astrometric Observations of the SRG Space Observatory with RTT-150 for Orbit Correction Control//Astronomy Letters. - 2023. - Vol.49, Is.3. - P.141-150. |
| Аннотация |
The Russian–Turkish 1.5-m telescope (hereafter RTT-150) takes an active part in the work
on the ground optical support of observations by the Russian Spectrum–Ro¨ ntgen–Gamma (SRG)
observatory (with the participation of Germany) aimed at the identification and classification of new X-ray
sources detected by the SRG telescopes. The instrumental capabilities of RTT-150 (occasionally, without
any significant usage of telescope time and detriment for astrophysical programs) are used in astrometric
observations to control the correction of the orbit of the SRG space observatory itself. In these cases, RTT-
150 provides the Ballistic Center of the Keldysh Institute of AppliedMathematics of the Russian Academy
of Sciences with high-precision astrometric measurements of the SRG position, which have been used to
successfully keep it in its operational orbit for more than three years of its exploitation. Beginning from
the stage of flight to the zone of the Lagrange point L2 in July 2019 and at the main phase of the allsky
survey mission until March 2023, 96 sets (with a duration of about 30 min each) of high-precision
positional observations with more than 5000 astrometric and photometric measurements were carried out
at the RTT-150 observing facility. In most cases, the positional accuracy of the measurements dependent
on seeing and apparent SRG brightness agrees with the accuracy of the provided ephemerides, 0.10
and
0.15
in declination and right ascension, respectively. In the summer months in projection onto the central
region of theGalaxy in fields extremely rich in sources, the astrometric accuracy is 1
, sufficient for the SRG
detection after the corrections and subsequent refinements of its trajectory. Geographically, RTT-150 is
the southernmost instrument among the Russian telescopes for the ground astrophysical support of SRG.
This fact is also extremely important in positional SRG observations at the lowest positions in declination
DEC ∼ −30◦. We present the results of our astrometric and photometric observations with RTT-150 and
our astrometric data reduction technique in various fields up to those extremely rich in sources. |
| Ключевые слова |
optical observations, photometric and positional observations of space observatories,
telescopes: RTT-150, space observatories: SRG. |
| Название журнала |
Astronomy Letters
|
| URL |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85165286953&doi=10.1134%2fS1063773723030039&partnerID=40&md5=566174fa4067ed590a2628803f7c4434 |
| Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку |
https://repository.kpfu.ru/?p_id=286459 |
Полная запись метаданных  |
| Поле DC |
Значение |
Язык |
| dc.contributor.author |
Бикмаев Ильфан Фяритович |
ru_RU |
| dc.date.accessioned |
2023-01-01T00:00:00Z |
ru_RU |
| dc.date.available |
2023-01-01T00:00:00Z |
ru_RU |
| dc.date.issued |
2023 |
ru_RU |
| dc.identifier.citation |
Khamitov I.M, Bikmaev I.F., High-precision Astrometric Observations of the SRG Space Observatory with RTT-150 for Orbit Correction Control//Astronomy Letters. - 2023. - Vol.49, Is.3. - P.141-150. |
ru_RU |
| dc.identifier.uri |
https://repository.kpfu.ru/?p_id=286459 |
ru_RU |
| dc.description.abstract |
Astronomy Letters |
ru_RU |
| dc.description.abstract |
The Russian–Turkish 1.5-m telescope (hereafter RTT-150) takes an active part in the work
on the ground optical support of observations by the Russian Spectrum–Ro¨ ntgen–Gamma (SRG)
observatory (with the participation of Germany) aimed at the identification and classification of new X-ray
sources detected by the SRG telescopes. The instrumental capabilities of RTT-150 (occasionally, without
any significant usage of telescope time and detriment for astrophysical programs) are used in astrometric
observations to control the correction of the orbit of the SRG space observatory itself. In these cases, RTT-
150 provides the Ballistic Center of the Keldysh Institute of AppliedMathematics of the Russian Academy
of Sciences with high-precision astrometric measurements of the SRG position, which have been used to
successfully keep it in its operational orbit for more than three years of its exploitation. Beginning from
the stage of flight to the zone of the Lagrange point L2 in July 2019 and at the main phase of the allsky
survey mission until March 2023, 96 sets (with a duration of about 30 min each) of high-precision
positional observations with more than 5000 astrometric and photometric measurements were carried out
at the RTT-150 observing facility. In most cases, the positional accuracy of the measurements dependent
on seeing and apparent SRG brightness agrees with the accuracy of the provided ephemerides, 0.10
and
0.15
in declination and right ascension, respectively. In the summer months in projection onto the central
region of theGalaxy in fields extremely rich in sources, the astrometric accuracy is 1
, sufficient for the SRG
detection after the corrections and subsequent refinements of its trajectory. Geographically, RTT-150 is
the southernmost instrument among the Russian telescopes for the ground astrophysical support of SRG.
This fact is also extremely important in positional SRG observations at the lowest positions in declination
DEC ∼ −30◦. We present the results of our astrometric and photometric observations with RTT-150 and
our astrometric data reduction technique in various fields up to those extremely rich in sources. |
ru_RU |
| dc.language.iso |
ru |
ru_RU |
| dc.subject |
optical observations |
ru_RU |
| dc.subject |
photometric and positional observations of space observatories |
ru_RU |
| dc.subject |
telescopes: RTT-150 |
ru_RU |
| dc.subject |
space observatories: SRG. |
ru_RU |
| dc.title |
High-precision Astrometric Observations of the SRG Space Observatory with RTT-150 for Orbit Correction Control |
ru_RU |
| dc.type |
Статьи в зарубежных журналах и сборниках |
ru_RU |
|
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