Spectrum of the Bordeaux transit circle residuals

Details Spectrum of the Bordeaux transit circle residuals Spectrum of the Bordeaux transit circle residuals

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...278..293b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 278, no. 1, p. 293-300

Astronomy and Astrophysics

Astronomy

5

Astrometry, Atmospheric Effects, Power Spectra, Reference Systems, Seeing (Astronomy), Autocorrelation, Scintillation, Standard Deviation, Turbulence Effects

Scientific paper

This paper discusses the residuals in right ascension and declination from the Bordeaux fully automated transit circle, corresponding to a two years period. It is shown that the solution can be improved by adding statistically significant terms to the reduction model. The correlation between the residuals, considered as a sample of a stochastic stationary process, displays a weak dependence on the declination difference and may be treated as a function of a single variable, the right ascension lag. The characteristics of the autocorrelation curves can be interpreted as derived from a power spectrum with two components: a low frequency power law and a flat spectrum. A fitting gives S(nu) = 20 10-6nu-1.37 + 1.3 and S(nu) = 89 10-6nu-1.37 + 2.0 for the right ascension and declination residuals, respectively, where the frequency unit is Hz and the power spectrum is expressed in arcsec2/Hz. The expressions are valid in the frequency interval from 3 10-5 to 3 10-2 Hz. These spectra are compatible with HOg(1968). It is shown that a part of the low frequency spectrum can be removed by the adoption of a reduction model which includes empirical higher order terms.

Affiliated with

Also associated with

No associations

Rating

Spectrum of the Bordeaux transit circle residuals does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spectrum of the Bordeaux transit circle residuals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectrum of the Bordeaux transit circle residuals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1322048