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1992•Astronomical and Astrophysical TransactionsRequires access

The pulkovo astrolabe catalogue (PAC)

V. S. Gubanov, E. V. Brumberg, N. P. Godisov, V. M. Vasiljev, N. I. Solina, L. I. Yagudin

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Abstract

The parametric adjustment method (PAM) adapted to astrometrical problems by Gubanov (1988) was applied for the first time to improving of the fundamental catalogue FK4 by means of observational data received in 1963–75 by the A. Danjon astrolabe in the Pulkovo observatory. This method allows taking into account in the least-square procedure, the a priori information on accuracy of the FK4 system and interior covariances in the observational data. Systematic corrections to both coordinates for all 525 observed stars and individual corrections to 325 of those which were observed in double transit across the astrolabe almucantarat were calculated. The system of the Pulkovo Astrolabe Catalogue (PAC) of the type δαα cos δ is in agreement with the new fundamental catalogue (FK5) in the Pulkovo zenith zone.

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What this paper is about

The parametric adjustment method (PAM) adapted to astrometrical problems by Gubanov (1988) was applied for the first time to improving of the fundamental catalogue FK4 by means of observational data received in 1963–75 by the A. Danjon astrolabe in the Pulkovo observatory. This method allows taking into account in the least-square procedure, the a priori information on accuracy of the FK4 system and interior covariances in the observational data. Systematic corrections to both coordinates for all 525 observed stars and individual corrections to 325 of those which were observed in double transit across the astrolabe almucantarat were calculated. The system of the Pulkovo Astrolabe Catalogue (PAC) of the type δαα cos δ is in agreement with the new fundamental catalogue (FK5) in the Pulkovo zenith zone.

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Available abstract

The parametric adjustment method (PAM) adapted to astrometrical problems by Gubanov (1988) was applied for the first time to improving of the fundamental catalogue FK4 by means of observational data received in 1963–75 by the A. Danjon astrolabe in the Pulkovo observatory. This method allows taking into account in the least-square procedure, the a priori information on accuracy of the FK4 system and interior covariances in the observational data. Systematic corrections to both coordinates for all 525 observed stars and individual corrections to 325 of those which were observed in double transit across the astrolabe almucantarat were calculated. The system of the Pulkovo Astrolabe Catalogue (PAC) of the type δαα cos δ is in agreement with the new fundamental catalogue (FK5) in the Pulkovo zenith zone.

Key concepts: Astrolabe, Observatory, Astrometry, Zenith, Parametric statistics, Geodesy, Stars, Physics

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