Central Bureau for Astronomical Telegrams
IAUC 5068: 1990 OS
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Read IAUC 5069
Circular No. 5068
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM EASYLINK 62794505
MARSDEN or GREEN@CFA.BITNET MARSDEN or GREEN@CFAPS2.SPAN
1990 OS
The following precise positions have been reported:
1990 UT R.A. (1950) Decl. Mag. Observer
July 29.42812 22 30 02.94 -22 08 33.0 Balam
29.51067 22 31 19.05 -22 02 06.8 16 Gilmore
29.51484 22 31 22.59 -22 01 56.4 "
29.60442 22 32 38.43 -21 58 12.5 "
29.60894 22 32 42.34 -21 58 00.5 "
D. D. Balam and J. B. Tatum (Climenhaga Observatory, Victoria).
A. C. Gilmore and P. M. Kilmartin (Mount John University Observatory).
Improved orbital elements from observations July 21-29:
T = 1990 Sept. 16.310 ET Peri. = 19.401
e = 0.46902 Node = 347.845 1950.0
q = 0.90227 AU Incl. = 1.115
a = 1.69924 AU n = 0.444961 P = 2.22 years
1990 ET R.A. (1950) Decl. Delta r V
July 30 22 38.66 -21 41.0 0.064 1.072 15.3
31 22 55.51 -20 45.6
Aug. 1 23 14.90 -19 33.0 0.055 1.060 15.1
2 23 37.10 -17 58.5
3 0 02.27 -15 57.4 0.047 1.048 15.0
4 0 30.35 -13 26.0
5 1 00.90 -10 23.8 0.042 1.037 15.1
6 1 33.10 - 6 55.9
7 2 05.78 - 3 13.2 0.041 1.026 15.5
8 2 37.67 + 0 29.6
9 3 07.69 + 3 58.8 0.044 1.015 16.1
10 3 35.12 + 7 05.0
11 3 59.64 + 9 44.3 0.049 1.004 16.9
12 4 21.25 +11 57.2
13 4 40.14 +13 46.6 0.058 0.994 17.6
14 4 56.63 +15 16.1
15 5 11.02 +16 29.4 0.067 0.985 18.3
16 5 23.63 +17 29.6
17 5 34.73 +18 19.4 0.078 0.975 18.8
1990 July 30 (5068) Brian G. Marsden
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