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J/AJ/107/1814       Chiron occultations                             (Bus+, 1994)

Chiron stellar occultation candidates: 1993-1996 BUS S.J., WASSERMAN L.H., ELLIOT J.L. <Astron. J. 107, 1814 (1994)> =1994AJ....107.1814B (SIMBAD/NED Reference)
ADC_Keywords: Occultations Abstract: A photographic search was conducted for stars that may be occulted by the unusual solar system object (2060) Chiron during the period from fall 1993 through summer 1996. 44 candidates were identified to a limiting V magnitude of 16, and for which the minimum appulse separation with Chiron is predicted to be less than 2.5arcsec. The successful observation of a stellar occultation by Chiron would give a direct measure of its diameter (currently estimated to be between 60 and 300km), and would help considerably in constraining Chiron's surface properties and volatile makeup. If at the time of the occultation, Chiron exhibits a significant coma, there is also the potential for measuring the optical-depth profile of the dust in its inner coma. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 97 44 Possible occultations by Chiron
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 4 A4 --- Star Star name 6- 13 A8 "DD/MM/YY" Closest approach date 15- 19 A5 "h:m" Obs.time Closest approach time 21- 23 F3.1 arcsec Sep [0/2.5] Minimum separation 24 A1 --- n_Sep [NS] Orientation of Sep 26- 29 F4.1 mag MStar [10.2/16.9] Star magnitude 31- 34 F4.1 mag MChiron [15.3/16.1] Chiron magnitude 36- 39 F4.2 --- Fraction [0.25/0.99] Fraction drop in intensity 41- 44 F4.1 km/s Vel [3.6/39.7] Velocity 46- 48 I3 deg SolEl [21/166] Solar elongation 50- 51 I2 h RAh Hour of Right ascension J2000.0 (1) 53- 54 I2 min RAm Minute of Right ascension J2000.0 (1) 56- 61 F6.3 s RAs Second of Right ascension J2000.0 (1) 63 A1 --- DE- Declination sign 64 I1 deg DEd Degree of Declination J2000.0 (1) 66- 67 I2 arcmin DEm Arcminute of Declination J2000.0 (1) 69- 73 F5.2 arcsec DEs Arcsecond of Declination J2000.0 (1) 75- 76 I2 --- nObs [3/12] Number of observations 78- 81 F4.2 s e_RAs rms uncertainty on right ascension 83- 86 F4.2 arcsec e_DEs rms uncertainty on declination 88- 97 A10 --- GSC GSC identification
Note (1): Epoch 1992.0.
Table 1: PACS films used in Search. ------------------------------------------------------------------------------ PACS Field Field Center Dates observed ID RA (2000.0) Dec ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ Historical Notes: Keypunched at CDS
(End) James Marcout, Patricia Bauer [CDS] 24-Feb-1995
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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