J/A+AS/131/291 1995-1997 CCD positions of Triton (Veiga+ 1998)
New CCD positions of Triton and a comparison with the theoretical predictions
Veiga C.H., Vieira Martins R.
<Astron. Astrophys. Suppl. Ser. 131, 291 (1998)>
=1998A&AS..131..291V 1998A&AS..131..291V (SIMBAD/NED BibCode)
ADC_Keywords: Planets ; Positional data
Keywords: astrometry - planets and satellites: Triton
Abstract:
Astrometric observations of Triton are given for the oppositions of
Neptune on 1995, 1996 and two nights of 1997. In this period, 759
frames were obtained during 35 nights at the Cassegrain focus of the
1.6m and the 0.6m reflectors of the LNA-Brazil. The comparison with
calculated positions gives residuals with standard deviation of the
order of 0.09".
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 38 759 List of observed positions of the Neptunian satellite
--------------------------------------------------------------------------------
See also:
J/A+AS/120/107 : 1989-1994 CCD observations of Triton (Veiga+ 1996)
J/A+AS/121/65 : 1990-1994 Saturn's satellites astrometry (Harper+ 1997)
J/A+AS/136/257 : Saturn's satellites in 1995/97 (Harper+ 1999)
J/A+AS/136/445 : CCD observations of Nereid (Veiga 1999)
J/A+AS/139/305 : Position of Saturn's satellites (1982-1988) (Veiga+, 1999)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 yr Obs.Y Mean instant of the observation (year)
6- 7 I2 --- Obs.M Mean instant of the observation (month)
9- 16 F8.5 d Obs.d Mean instant of the observation (day)
18- 23 A6 --- Sat Nema of the satellite
25- 30 F6.2 arcsec DRA {DELTA}αcodδ position relative
to Neptune (J2000)
32- 37 F6.2 arcsec DDE {DELTA}δ position relative to
Neptune (J2000)
--------------------------------------------------------------------------------
Acknowledgements: Carlos Henrique Veiga
(End) Patricia Bauer [CDS] 09-Mar-1998