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J/A+A/375/614 Astrolabe observations of the Sun in 1990-2000 (Noel, 2001)
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Astrometric observations of the Sun at Santiago: 1998-2000.
Noel F.
<Astron. Astrophys. 375, 614 (2001)>
=2001A&A...375..614N
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ADC_Keywords: Sun; Positional data
Keywords: solar astrometry, astrolabe observations
Description:
The two tables are an update of all observations (1990-2000) of the
Sun performed at Santiago, Chile, with a modified Danjon astrolabe at
30{deg} and 60{deg} zenith distances.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 91 568 1990-2000 Sun observations at 30{deg} zenith distance
table4.dat 91 1106 1990-2000 Sun observations at 60{deg} zenith distance
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See also:
J/A+AS/102/11 : Astrolabe observations of the Sun in 1990-1992 (Noel 1993)
J/A+AS/106/327 : Observations of the Sun during 1993 at Santiago (Noel 1994)
J/A+AS/106/441 : Second catalogue of Santiago (Noel, 1994)
J/A+AS/113/131 : Observations of the Sun during 1994 (Noel, 1995)
J/A+AS/132/195 : Astrolabe observations of the Sun in 1995-1997 (Noel 1998)
Byte-by-byte Description of file: table3.dat table4.dat
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Bytes Format Units Label Explanations
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1- 10 A10 "YYYY/MM/DD" Date Date
12- 20 F9.3 d MJD Modified Julian day
22- 27 F6.3 arcsec Zeu ?=99.990 Zenith distance residual east upper
border
29- 34 F6.3 arcsec Zel ?=99.990 Zenith distance residual east lower
border
36- 41 F6.3 arcsec Zwl ?=99.990 Zenith distance residual west lower
border
43- 48 F6.3 arcsec Zwu ?=99.990 Zenith distance residual west upper
border
50- 56 F7.4 s dRA ?=99.9990 Differential Right ascension (O-C)
58- 63 F6.4 s e_dRA ?=9.9990 Sigma of DRA
65- 70 F6.3 arcsec Y ?=99.990 Zenith distance (Observed-Adopted)+
Declination(O-C) cos S.
72- 77 F6.3 arcsec dDSun ?=99.990 Sun semidiameter (O-C)
79- 83 F5.3 arcsec e_Y ?=9.990 Sigma of dDSun and Y
85- 91 F7.3 arcsec DSun ?=0.000 Observed Sun semidiameter reduced to AU.
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Acknowledgements: Fernando Noel <fnoel@das.uchile.cl>
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(End) Patricia Bauer [CDS] 09-Jul-2001