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“Millimetron” Space Observatory Nominal Orbit

T. A. Syachina, P. R. Zapevalin, P. V. Mzhelskiy, A. G. Rudnitskiy, M. A. Shchurov

Transactions of IAA RAS, issue 62, 35–39 (2022)

Keywords: interferometry, VLBI, ballistics, software, observation planning, ballistics and spacecraft navigation

Abstract

The space observatory "Millimetron" is a ten-meter deployable and cooled space telescope that will observe in millimeter and submillimeter wavelength ranges. The feature of the observatory is its operation in two modes: single-dish and space-ground interferometer. The spacecraft is under active development and will launch in 2029. The aim of the project is to study the Universe: protoplanetary disks, galactic nuclei, black holes, cosmic microwave background spectral distortions, cosmological effects, as well as to solve a number of other problems of scientific interest. One of the most important issues during the mission development is the choice of the optimal nominal orbit for the spacecraft, which would both satisfy all technical requirements and restrictions and fully allow solving all the scientific tasks of the program. The paper describes the nominal orbit for "Millimetron" observatory, which was obtained in the laboratory of ballistic and navigation support for space projects of the ASC LPI. The choice fell on an orbit around the Lagrange point L2 of the Sun-Earth system, which has a number of advantages for a space mission, such as the absence of mirror illumination and optimal (u,v) coverage quality in the interferometer mode. The main criterion for choosing this orbit were long and successful observations of the two black holes M87 and SGR A*. As a result of a comprehensive analysis and parameters optimization, it was shown that this orbit fully meets the scientific and technical requirements of the mission. All calculations, including the calculation of planetary ephemeris and gravitational potential, were made on the basis of the software developed in the laboratory. It should be noted that "Millimetron" will be the first space-ground interferometer, which will perform observations in the vicinity of the Lagrange point L2 of the Sun-Earth system at a distance of 1.5 million km from the Earth.

Citation

Text

BibTeX

RIS

T. A. Syachina, P. R. Zapevalin, P. V. Mzhelskiy, A. G. Rudnitskiy, M. A. Shchurov. “Millimetron” Space Observatory Nominal Orbit // Transactions of IAA RAS. — 2022. — Issue 62. — P. 35–39.

@article{syachina2022,
  abstract = {The space observatory "Millimetron" is a ten-meter deployable and cooled space telescope that will observe in millimeter and submillimeter wavelength ranges. The feature of the observatory is its operation in two modes: single-dish and space-ground interferometer. The spacecraft is under active development and will launch in 2029. The aim of the project is to study the Universe: protoplanetary disks, galactic nuclei, black holes, cosmic microwave background spectral distortions, cosmological effects, as well as to solve a number of other problems of scientific interest. One of the most important issues during the mission development is the choice of the optimal nominal orbit for the spacecraft, which would both satisfy all technical requirements and restrictions and fully allow solving all the scientific tasks of the program.
The paper describes the nominal orbit for "Millimetron" observatory, which was obtained in the laboratory of ballistic and navigation support for space projects of the ASC LPI. The choice fell on an orbit around the Lagrange point L2 of the Sun-Earth system, which has a number of advantages for a space mission, such as the absence of mirror illumination and optimal (u,v) coverage quality in the interferometer mode. The main criterion for choosing this orbit were long and successful observations of the two black holes M87 and SGR A*. As a result of a comprehensive analysis and parameters optimization, it was shown that this orbit fully meets the scientific and technical requirements of the mission. All calculations, including the calculation of planetary ephemeris and gravitational potential, were made on the basis of the software developed in the laboratory.
It should be noted that "Millimetron" will be the first space-ground interferometer, which will perform observations in the vicinity of the Lagrange point L2 of the Sun-Earth system at a distance of 1.5 million km from the Earth.},
  author = {T.~A. Syachina and P.~R. Zapevalin and P.~V. Mzhelskiy and A.~G. Rudnitskiy and M.~A. Shchurov},
  doi = {10.32876/ApplAstron.62.35-39},
  issue = {62},
  journal = {Transactions of IAA RAS},
  keyword = {interferometry, VLBI, ballistics, software, observation planning, ballistics and spacecraft navigation},
  pages = {35--39},
  title = {“Millimetron” Space Observatory Nominal Orbit},
  url = {http://iaaras.ru/en/library/paper/2134/},
  year = {2022}
}

TY  - JOUR
TI  - “Millimetron” Space Observatory Nominal Orbit
AU  - Syachina, T. A.
AU  - Zapevalin, P. R.
AU  - Mzhelskiy, P. V.
AU  - Rudnitskiy, A. G.
AU  - Shchurov, M. A.
PY  - 2022
T2  - Transactions of IAA RAS
IS  - 62
SP  - 35
AB  - The space observatory "Millimetron" is a ten-meter deployable and
cooled space telescope that will observe in millimeter and
submillimeter wavelength ranges. The feature of the observatory is
its operation in two modes: single-dish and space-ground
interferometer. The spacecraft is under active development and will
launch in 2029. The aim of the project is to study the Universe:
protoplanetary disks, galactic nuclei, black holes, cosmic microwave
background spectral distortions, cosmological effects, as well as to
solve a number of other problems of scientific interest. One of the
most important issues during the mission development is the choice of
the optimal nominal orbit for the spacecraft, which would both
satisfy all technical requirements and restrictions and fully allow
solving all the scientific tasks of the program.  The paper describes
the nominal orbit for "Millimetron" observatory, which was obtained
in the laboratory of ballistic and navigation support for space
projects of the ASC LPI. The choice fell on an orbit around the
Lagrange point L2 of the Sun-Earth system, which has a number of
advantages for a space mission, such as the absence of mirror
illumination and optimal (u,v) coverage quality in the interferometer
mode. The main criterion for choosing this orbit were long and
successful observations of the two black holes M87 and SGR A*. As a
result of a comprehensive analysis and parameters optimization, it
was shown that this orbit fully meets the scientific and technical
requirements of the mission. All calculations, including the
calculation of planetary ephemeris and gravitational potential, were
made on the basis of the software developed in the laboratory.  It
should be noted that "Millimetron" will be the first space-ground
interferometer, which will perform observations in the vicinity of
the Lagrange point L2 of the Sun-Earth system at a distance of 1.5
million km from the Earth.
DO  - 10.32876/ApplAstron.62.35-39
UR  - http://iaaras.ru/en/library/paper/2134/
ER  -