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I/82 SPF1 Catalogue (Anguita+ 1975)
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First Santiago-Pulkovo Fundamental Stars Catalogue (SPF1)
Anguita C., Carrasco G., Loyola P.R., Bedin V.N., Naumova A.A.,
Polojentsev D.D., Polojentseva T.A., Tavastherna K.N., Zverev M.S.
<Publ. Dept. Astron., Univ. of Chile, 2, 181 (1975)>
=1975PDAUC...2..181A
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ADC_Keywords: Meridian observations ; Positional data ; Stars, fundamental
Description:
The "First Santiago-Pulkovo Fundamental Stars Catalogue (SPF1)"
contains right ascension observations of 1043 FK4 stars made during
the period 1963 to 1968 with the Repsold Meridian Circle located at
Cerro Calan Observatory in Chile. The FK4 stars were observed during
series of observations of Southern Reference Stars (SRS) and Bright
Stars (BS) international programs. Approximately 30 to 45 FK4 stars
were measured during each 2- to 2-1/2-hour series, and included stars
observed along the meridian between +41deg and -90deg in upper
culmination and from -90deg to -68deg in lower culmination. The lower
culmination observations are given in a separate table in the source
reference; they are included in the file "lower".
This work was made during the observations of the SRS and BS
international programmes. These series of fundamental stars were
periodically observed on the whole arc of meridian from +40 deg. to
-68 sp deg. 211 series of observations were made with 6793 RA of stars
observed.
The reduction of observations was made by Zverev's quasi-absolute
method (M.S.Zverev, Astr.J. USSR, 1965, v.42, p.823 and 1969, v.46,
p.129.). The mean error of the positions of stars in the Catalogue is
M.E. (Delta Alfa x cos Dec.) = +/- 0.008 timesec.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 43 1043 The SPF1 Catalogue
lower.dat 43 82 Lower culminations
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Byte-by-byte Description of file: catalog.dat, lower.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- FK4 [1/1987] Number in the FK4 catalogue
(Fricke and Kopff 1963).
6- 7 I2 h RAh Approximate Right Ascension 1950 (hours)
9- 10 I2 min RAm Approximate Right Ascension 1950 (minutes)
12 A1 --- DE- Approximate Declination 1950 (sign)
13- 14 I2 deg DEd Approximate Declination 1950 (degrees)
16- 17 I2 arcmin DEm Approximate Declination 1950 (minutes)
19- 23 I5 ms dRAms(i) Correction to the FK4 right ascension in the
instrumental system (RA-RA(i)) for the
mean epoch of the observations.
25- 29 I5 ms dRAms(FK4) Correction to the FK4 right ascension in the
FR4 system for the mean
epoch of the observations.
31- 32 I2 --- o_dRAms(i) Number of observations for dRAms(i)
34- 36 I3 ms e_dRAms(i) ? Mean square error of the
catalogue position multiplied by
cos(delta), computed with the
deviations of the observations from the
mean.
38- 43 I6 yr Epoch Mean epoch of the observations
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Related Data:
I/44 : SPF2 Catalogue (unpublished)
I/78 : SPF3 Catalogue (Loyola and Shishkina, =1974PDAUC...2..159L)
Acknowledgments:
Appreciation is expressed to Dr. A. Fresneau of the CDS, Strasbourg,
for preparing a handwritten format description of the CDS tape at my
request, and to Dr. A. Gutirrez-Moreno for sending the University of
Chile publication required for comparison purposes.
References:
Fricke, W. and Ropff, A. 1963, Fourth Fundamental Katalog (FK4J,
Veroeff. Astron. Rechen-Inst. Heidelberg, No. 10.
Historical Notes:
* March 1982: The SPF1 catalogue was received on magnetic tape from
the Centre de Donnees Stellaires (CDS), Strasbourg. The data had been
received on punched cards from the Astronomisches Rechen-Institut,
Heidelberg and had been punched from a handwritten version (A.
Fresneau, private communication). A check against the published
catalogue (Anguita et al. 1975) revealed an extra record in the
machine-readable version (FR4 #1121 with only one observation; the
observation must have been removed before publication and has been
deleted from the file) and one record having an incorrect FK4 number
and displaced (this has been corrected), plus several stars whose
right ascensions and declinations disagree by 1m or 1' between the
computer file and the published catalogue (these have not been changed
since the right ascensions and declinations are only approximate and
are not the principal data of the catalogue). The logical record
length (LRECL) of the file received (the upper and lower culmination
observations were on a single file) was 88 bytes (a card image plus
8-byte allowance for CDS identification number); since bytes 50-88
were always blank, LRECL was changed to 49 bytes to save storage
space. The upper and lower culmination tables were separated into two
files due to the fact that lower culmination observations are made at
lower altitude and are often of lower accuracy than upper culmination
observations.
* 18-Sep-1995: Documentation standardized at CDS.
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(End) Dimitri Polojentsev [Pulkovo], Francois Ochsenbein [CDS] 18-Sep-1995