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## Determination of Systematic Errors of Star Catalogs Using Positional Observations of Numbered Minor Planets

Transactions of IAA RAS, issue 30, 41–48 (2014)

Keywords: systematic errors of star catalogs, improvement of orbits, numbered asteroids

### Abstract

Improving the orbit of 356,968 numbered asteroids enabled us to calculate systematic biases in the star catalogs USNO A2.0, UCAC-2 and UCAC-3 from the calculated О — С values. The celestial sphere was divided into 10,212 sectors which were identical in size and area. Each of the 70 234 284 observations made after 2001 was referred to a certain sky sector. The biases in the star catalogs were calculated for each sector as the arithmetic mean values of the corresponding . The variability rates of the USNO A2.0 catalog systematic errors were defined for some celestial sphere sectors.

### Citation

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V. Kuznetsov, Y. Medvedev. Determination of Systematic Errors of Star Catalogs Using Positional Observations of Numbered Minor Planets // Transactions of IAA RAS. — 2014. — Issue 30. — P. 41–48. @article{kuznetsov2014, abstract = {Improving the orbit of 356,968 numbered asteroids enabled us to calculate systematic biases in the star catalogs USNO A2.0, UCAC-2 and UCAC-3 from the calculated О — С values. The celestial sphere was divided into 10,212 sectors which were identical in size and area. Each of the 70 234 284 observations made after 2001 was referred to a certain sky sector. The biases in the star catalogs were calculated for each sector as the arithmetic mean values of the corresponding . The variability rates of the USNO A2.0 catalog systematic errors were defined for some celestial sphere sectors.}, author = {V. Kuznetsov and Y. Medvedev}, issue = {30}, journal = {Transactions of IAA RAS}, keyword = {systematic errors of star catalogs, improvement of orbits, numbered asteroids}, pages = {41--48}, title = {Determination of Systematic Errors of Star Catalogs Using Positional Observations of Numbered Minor Planets}, url = {http://iaaras.ru/en/library/paper/1024/}, year = {2014} } TY - JOUR TI - Determination of Systematic Errors of Star Catalogs Using Positional Observations of Numbered Minor Planets AU - Kuznetsov, V. AU - Medvedev, Y. PY - 2014 T2 - Transactions of IAA RAS IS - 30 SP - 41 AB - Improving the orbit of 356,968 numbered asteroids enabled us to calculate systematic biases in the star catalogs USNO A2.0, UCAC-2 and UCAC-3 from the calculated О — С values. The celestial sphere was divided into 10,212 sectors which were identical in size and area. Each of the 70 234 284 observations made after 2001 was referred to a certain sky sector. The biases in the star catalogs were calculated for each sector as the arithmetic mean values of the corresponding . The variability rates of the USNO A2.0 catalog systematic errors were defined for some celestial sphere sectors. UR - http://iaaras.ru/en/library/paper/1024/ ER -