J/AJ/119/2008 10199 Chariklo stellar occultation: 1999-2005 (Stone+, 2000)
10199 Chariklo stellar occultation candidates: 1999-2005.
Stone R.C., McDonald S.W., Elliot J.L., Bowell E.
<Astron. J. 119, 2008 (2000)>
=2000AJ....119.2008S 2000AJ....119.2008S
ADC_Keywords: Minor planets ; Occultations
Keywords: astrometry - occultations
Abstract:
The Flagstaff Astrometric Scanning Transit Telescope was used to scan
the sky in search of occultation candidates through which the Centaur
10199 Chariklo (formerly 1997 CU26) will pass in 1999-2005.
Positions for 96,397 stars (magnitudes 7.5<V<17.3) were determined
using differential reductions to the ACT catalog of star positions and
proper motions, and accuracies of ±30mas were achieved for
well-exposed images. The ephemeris for 10199 Chariklo was improved by
including the new positions presented in this paper and, second, by
correcting older positions taken from the literature for systematic
errors. During this time period, 10199 Chariklo passes within 2" of
117 of these stars, which are identified as occultation candidates in
this paper. Among these, 28 candidates have magnitudes V<15.0, making
them the best choices for observing programs using portable
telescopes. Circumstances for each occultation are given. Because the
angular radius of 10199 Chariklo is only about 15mas, the astrometry
provided in this paper is only accurate enough for identifying
possible occultation events and is not sufficient for predicting
individual shadow paths across the surface of Earth, although
representative cases are given. Last-minute astrometry with a
large-aperture telescope will be needed to refine each prediction.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 96 117 Possible occultations by 10199 Chariklo
in 1999.5-2006.0
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See also:
J/AJ/109/1363 : Occultations of stars by asteroids 1995-96 (Wasserman+ 1995)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- ID Star identification (10199-NNN)
<Chariklo 10199-NNN> in Simbad
11- 20 A10 "DD/MM/YYYY" Ev.date Event date
22- 23 I2 h Ev.h UTC event date (hours)
24- 25 I2 min Ev.m UTC event date (minutes)
27- 30 F4.2 arcsec Sep Minimum separation
32- 34 I3 deg PA Position angle
36- 39 F4.1 mag Vstar Star V magnitude
41- 44 F4.1 km/s Vshad Shadow velocity
46- 48 I3 deg Elong Solar angle
50- 51 I2 h RAh Right ascension (J2000)
53- 54 I2 min RAm Right ascension (J2000)
56- 61 F6.3 s RAs Right ascension (J2000)
63 A1 --- DE- Declination sign (J2000)
64- 65 I2 deg DEd Declination (J2000)
67- 68 I2 arcmin DEm Declination (J2000)
70- 74 F5.2 arcsec DEs Declination (J2000)
76- 79 I4 deg Long East longitude
81- 89 F9.6 AU Dist Distance to Chariklo
91- 94 F4.1 mag Vmag Chariklo V magnitude
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History: From AJ electronic version
(End) James Marcout, Patricia Bauer [CDS] 02-May-2000