J/AJ/104/862 Triton stellar occultation candidates (McDonald+ 1992)
Triton stellar occultation candidates 1992-1994
McDonald S.W., Elliot J.L.
<Astron. J. 104, 862 (1992)>
=1992AJ....104..862M 1992AJ....104..862M (SIMBAD/NED BibCode)
ADC_Keywords: Occultations ; Positional data
Description:
A search for Triton stellar occultation candidates for the period
1992-1994 has been completed with CCD strip-scanning observations. The
search reached an R magnitude of about 17.4 and found 129 candidates
within 1.5arcsec of Triton's ephemeris during this period. Of these
events, we expect around 30 occultations to be visible from the Earth,
indicating that a number of Triton occultation events should be
visible from major observatories. Even the faintest of our candidate
events could produce useful occultation data if observed with a large
enough telescope. Our astrometric accuracy is inadequate to identify
which of these appulse events will produce occultations on the Earth;
further astrometry is needed to refine the predictions for positive
occultation identification. To aid in selecting candidates for
additional astrometric and photometric studies, we include finder
charts and Earth-based visibility charts for each event.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2 104 129 Possible occultations by Triton
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 A5 --- ID Star name
7- 14 A8 "DD/MM/YY" AppDate Date of the closest approach
17- 18 I2 h Apph UT time of the closest approach
20- 21 I2 min Appm UT time of the closest approach
24- 27 F4.2 arcsec SepMin Minimum separation of the closest approach
29- 31 I3 deg PA Position angle of Triton relative to the star at
the time of the closest approach
34- 37 F4.1 mag Rmag CCD magnitude
41- 44 F4.1 km/s Vel Shadow velocity
48- 50 I3 deg Dist Angular distance between Triton and the Sun
54- 55 I2 h RAh Right ascension (J2000) of the star
57- 58 I2 min RAm Right ascension (J2000) of the star
60- 65 F6.3 s RAs Right ascension (J2000) of the star
69 A1 --- DE- Declination sign
70- 71 I2 deg DEd Declination (J2000) of the star (1)
73- 74 I2 arcmin DEm Declination (J2000) of the star (1)
76- 80 F5.2 arcsec DEs Declination (J2000) of the star (1)
83- 86 I4 deg GLON [-179/178] Sub-Earth longitude of the star
90-104 A15 --- Strip Strip numbers on which an image of the candidate
star was measured
--------------------------------------------------------------------------------
Note (1): The declination is also the sub-Earth latitude of the star.
--------------------------------------------------------------------------------
Historical Notes: Keypunched at CDS
(End) James Marcout, Patricia Bauer [CDS] 10-May-1995