1 Murzabekov M.M.
2 Fateev V.F.
3 Pleshakov D.I.

FSUE «All-Russian Scientific Research Institute of Physical-Technical and Radiotechnical Measurements» (FSUE «VNIIFTRI»)


The Russian Federation Defense Ministry Central Research Institute 27

In this paper, the quasi-geoid elevations along the profile of the Moscow attraction are calculated based on the astronomical leveling method – according to the components of the deflection of vertical, which were measured using the zenith camera of the FSUE "VNIIF-TRI". The length of the profile is approximately 93 km. The error in the final excess of the quasi-geoid for the attraction profile, obtained from the mentioned measurements, was about 13 mm. The results are compared with a digital model of quasi-geoid heights, which has a relative error of ~4 cm in the Moscow region. Juxtaposition of the quasi-geoid elevations gave an average difference of –1,8 cm and its standard deviation of 1,9 cm. The dependence of the quasi-geoid final excess for the attraction profile on the points’ number used (lengths of segments) and the measurement area anomaly were studied. For the Moscow attraction, which is a medium-anomalous region, it was found out that the optimal distance between surveyed points should not exceed 13 km. The method of astronomical leveling using a zenith camera can be used for metrological support and independent control of quasigeoid models obtained through other methods, for example, gravimetric ones
The research was supported by the Russian Science Foundation grant No. 23-67-10007, https://rscf.ru/project/23-67-10007/
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Murzabekov M.M., 
Fateev V.F., 
Pleshakov D.I., 
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