Central Bureau for Astronomical Telegrams
IAUC 4565: 1988 EG
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Circular No. 4565
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM Telephone 617-495-7244/7440/7444
1988 EG
Jeff Alu, Jet Propulsion Laboratory, California Institute of
Technology, reports his discovery of a fast-moving asteroidal object
with the 0.46-m Schmidt telescope at Palomar in the course of
the International Near-Earth Asteroid Survey under the direction of
E. Helin. The following precise positions are available:
1988 UT R. A. (1950) Decl. Mag. Observer
Mar. 12.30677 11 11 54.76 - 1 17 51.9 16.0 Alu
13.30920 11 09 43.74 - 0 18 15.9 "
15.29427 11 06 09.17 + 1 20 53.1 "
18.15136 11 02 20.02 + 3 10 26.1 17 Shao
18.32094 11 02 06.65 + 3 15 58.5 McCrosky
J. Alu, B. Roman and R. Crockett (Palomar).
C.-Y. Shao and R. E. McCrosky (Oak Ridge). Measurer Shao.
An orbit determination from the above observations by C. M.
Bardwell, Center for Astrophysics, shows the object to be of Apollo
type (the closest approach to the earth was 0.042 AU on Feb. 26):
T = 1988 Jan. 2.85 ET
Peri. = 241.51 e = 0.5232
Node = 182.09 1950.0 a = 1.3067 AU
i = 3.71 n = 0.65981
q = 0.6231 AU P = 1.49 years
1988 ET R. A. (1950) Decl. Delta r V
Mar. 4 11 51.75 -18 15.5 0.069 1.053 14.3
6 11 36.19 -11 54.9
8 11 25.70 - 7 24.9 0.098 1.089 14.8
10 11 18.21 - 4 06.9
12 11 12.64 - 1 37.0 0.131 1.124 15.2
14 11 08.38 + 0 19.3
16 11 05.08 + 1 51.6 0.166 1.159 15.9
18 11 02.50 + 3 05.9
20 11 00.49 + 4 06.5 0.203 1.193 16.6
22 10 58.95 + 4 56.2
24 10 57.80 + 5 37.4 0.241 1.227 17.1
26 10 56.98 + 6 11.4
28 10 56.44 + 6 39.7 0.281 1.260 17.6
30 10 56.15 + 7 03.0
Apr. 1 10 56.08 + 7 22.2 0.323 1.292 18.0
1988 March 18 (4565) Daniel W. E. Green
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