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J/MNRAS/376/1707      1996-2006 observations of Triton             (Qiao+, 2007)

Astrometric observations of Triton. Qiao R.C., Yan Y.R., Shen K.X., Dourneau G., Xi X.J., Cheng X., Wang S.H., Tang Z.H., Liu J.R. <Mon. Not. R. Astron. Soc., 376, 1707-1710 (2007)> =2007MNRAS.376.1707Q
ADC_Keywords: Planets - Positional data Keywords: astrometry - planets and satellites: general Abstract: Astrometric positions of the Neptunian Satellite Triton are given for the opposition of Neptune for the years 1996, 2003, 2005 and 2006. The 943 observed positions were obtained at the Cassegrain focus of a 156-cm reflector. In our reduction, the up-to-date catalogue of stars UCAC2 was chosen to ensure a proper astrometric calibration. Our observed positions are compared to theoretical positions provided from JPL and IMCCE ephemerides. The observed minus calculated residuals have s.d. values of the order of 0.04arcsec. Description: The observations presented here were obtained with the 156-cm telescope at the Sheshan station (longitude=121:11:03.3E, latitude=31:05:46.1N , altitude=97m) near the Shanghai Astronomical Observatory. In the present work, our new observations spanning the period from 1996 to 2006 are included. Description: The positions are topocentric and given in the ICRF J2000 system. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 43 943 The list of our observed positions of Triton
See also: J/A+AS/120/107 : 1989-1994 CCD observations of Triton (Veiga+ 1996) J/A+A/425/1107 : Observations of Triton and Proteus (Vieira Martins+, 2004) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 17 A17 "date" Date Observation date (YYYY/MM/DD.dddddd) 19- 20 I2 h RAh Right ascension (Topocentric, ICRF J2000) 22- 23 I2 min RAm Right ascension (Topocentric, ICRF J2000) 25- 30 F6.3 s RAs Right ascension (Topocentric, ICRF J2000) 32 A1 --- DE- Declination sign (Topocentric, ICRF J2000) 33- 34 I2 deg DEd Declination (Topocentric, ICRF J2000) 36- 37 I2 arcmin DEm Declination (Topocentric, ICRF J2000) 39- 43 F5.2 arcsec DEs Declination (Topocentric, ICRF J2000)
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 03-Jul-2007
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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