Central Bureau for Astronomical Telegrams
IAUC 3645: 1981 VA
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Read IAUC 3646
Circular No. 3645
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 617-864-5758
1981 VA
The following precise positions have been reported:
1981 UT R. A. (1950) Decl. Mag. Observer
Nov. 4.31979 2 55 05s36 +56 36 03.1 16.5 Helin
4.33368 2 55 01.79 +56 34 17.4 "
5.39583 2 51 12.01 +54 18 45.1 "
5.40625 2 51 09.76 +54 17 26.8 "
5.47917 2 50 54.35 +54 08 11.3 "
5.48958 2 50 52.32 +54 06 55.6 "
7.08154 2 46 17.07 +50 54 11.3 Shao
E. Helin and R. S. Dunbar (Palomar Mountain Observatory). Beginnings
and ends of trails. Measured by Dunbar and S. J. Bus.
C.-Y. Shao (Oak Ridge Observatory). Measured by R. E. McCrosky.
The following orbital elements from the above observations, by
C. M. Bardwell, Center for Astrophysics, show that this object is
an Apollo-type minor planet:
T = 1981 Sept. 2.329 ET
Peri. = 58.734 e = 0.73112
Node = 246.649 1950.0 a = 2.34968 AU
Incl. = 20.966 n = 0.273648
q = 0.63178 AU P = 3.60 years
1981 ET R. A. (1950) Decl. Delta r Mag.
Oct. 31 3 20.14 +66 31.2 0.258 1.165 16.4
Nov. 2 3 06.09 +61 48.0
4 2 56.37 +57 17.7 0.279 1.212 16.4
6 2 49.31 +53 03.9
8 2 44.00 +49 08.5 0.307 1.260 16.5
10 2 39.93 +45 32.1
12 2 36.74 +42 14.5 0.342 1.307 16.7
14 2 34.23 +39 14.9
16 2 32.25 +36 32.2 0.384 1.354 16.9
18 2 30.70 +34 05.1
20 2 29.50 +31 52.4 0.430 1.400 17.2
22 2 28.61 +29 52.7
24 2 27.98 +28 04.8 0.481 1.445 17.5
Mag. = 18.0 + 5 log Delta + 5 log r + 0.023 (phase angle)
1981 November 10 (3645) Daniel W. E. Green
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