Central Bureau for Astronomical Telegrams
IAUC 3512: 1980 PA
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Circular No. 3512
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
1980 PA
C.-Y. Shao reports the following observations obtained at
Harvard College Observatory's Agassiz Station:
1980 UT R. A. (1950) Decl.
Sept. 4.26565 1 34 31.53 +25 29 31.4
7.24190 1 56 50.99 +28 03 14.8
C. M. Bardwell, Harvard-Smithsonian Center for Astrophysics,
provides the following improved orbital elements and ephemeris from
7 accurate observations made Aug. 8, 13, 14 and 17, and Sept. 4 and
7:
T = 1980 Oct. 10.755 ET
Peri. = 124.721 e = 0.45841
Node = 261.933 1950.0 a = 1.92484 AU
Incl. = 2.155 n = 0.369074
q = 1.04248 AU P = 2.67 years
1980 ET R. A. (1950) Decl. Delta r Mag.
Sept. 6 1 47.24 +27 00.1 0.163 1.114 16.2
8 2 02.86 +28 41.5
10 2 19.47 +30 17.9 0.155 1.099 16.1
12 2 36.99 +31 47.4
14 2 55.28 +33 07.9 0.150 1.086 16.1
16 3 14.19 +34 17.5
18 3 33.48 +35 14.9 0.148 1.074 16.2
20 3 52.91 +35 59.2
22 4 12.21 +36 30.3 0.149 1.064 16.2
24 4 31.14 +36 48.4
26 4 49.47 +36 54.5 0.152 1.056 16.3
28 5 07.01 +36 49.8
30 5 23.64 +36 35.7 0.157 1.050 16.5
Oct. 2 5 39.25 +36 13.8
4 5 53.80 +35 45.6 0.164 1.045 16.6
6 6 07.31 +35 12.5
8 6 19.77 +34 35.7 0.172 1.043 16.7
10 6 31.25 +33 56.4
12 6 41.79 +33 15.4 0.180 1.043 16.8
14 6 51.45 +32 33.4
16 7 00.30 +31 51.1 0.189 1.044 16.9
18 7 08.39 +31 09.0
1980 September 8 (3512) Daniel W. E. Green
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