Central Bureau for Astronomical Telegrams
IAUC 4731: 1987 SY
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Read IAUC 4732
Circular No. 4731
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
1987 SY
J. Gibson reports his recovery of this object with the Palomar
1.5-m reflector + CCD, as follows:
1988 UT R.A. (1950) Decl.
Dec. 20.40902 10 45 46.24 +10 29 58.0
24.52094 10 55 54.90 + 9 13 48.0
The following orbital elements by C. M. Bardwell, Center for
Astrophysics, are from 41 observations 1987 Sept. 25-1988 Dec. 24:
Epoch = 1989 Feb. 3.0 ET
T = 1989 Mar. 27.0882 ET Peri. = 291.3073
e = 0.586872 Node = 311.6027 1950.0
q = 0.595631 AU Incl. = 5.5193
a = 1.441758 AU n = 0.5693318 P = 1.731 years
1989 ET R.A. (1950) Decl. Delta r V
Feb. 3 14 55.75 -23 15.3 0.247 0.997 17.0
4 15 09.67 -24 32.9
5 15 24.07 -25 46.5 0.244 0.976 17.2
6 15 38.86 -26 55.2
7 15 53.96 -27 58.0 0.244 0.955 17.3
8 16 09.27 -28 54.3
9 16 24.67 -29 43.3 0.247 0.934 17.5
10 16 40.04 -30 24.9
11 16 55.27 -30 58.8 0.253 0.914 17.7
12 17 10.25 -31 25.2
13 17 24.89 -31 44.4 0.263 0.893 18.0
14 17 39.09 -31 56.9
15 17 52.80 -32 03.1 0.275 0.872 18.2
16 18 05.97 -32 03.7
17 18 18.57 -31 59.3 0.290 0.852 18.4
18 18 30.59 -31 50.6
19 18 42.01 -31 38.2 0.308 0.831 18.6
20 18 52.86 -31 22.7
21 19 03.15 -31 04.5 0.327 0.811 18.8
22 19 12.90 -30 44.2
23 19 22.13 -30 22.0 0.348 0.792 19.0
1989 February 6 (4731) Daniel W. E. Green
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