Central Bureau for Astronomical Telegrams
IAUC 3447: 1980 AA; 1979 VA
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Read IAUC 3448
Circular No. 3447
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 AA
Further precise positions have been reported as follows:
1980 UT R. A. (1950) Decl. Mag. Observer
Jan. 20.23332 7 47 08.07 +21 10 59.2 Shao
20.27083 7 47 28.22 +21 07 58.9 Child
20.27986 7 47 31.12 +21 07 22.2 "
22.24306 8 01 05.82 +18 22 28.0 15.0 Bowell
C.-Y. Shao (Harvard College Observatory, Agassiz Station). 1.5-m
reflector. Measurer: R. E. McCrosky.
J. Child and M. Weir (Table Mountain Observatory). Beginning and
end of trail; end is uncertain. Measurer: J. Gibson.
E. Bowell (Lowell Observatory, Anderson Mesa Station).
The following improved orbital elements, by B. G. Marsden,
satisfy six observations Jan. 16-22 within 1":
T = 1980 Jan. 9.147 ET
Peri. = 167.926 e = 0.43427
Node = 298.604 1950.0 a = 1.85833 AU
Incl. = 4.112 n = 0.389062
q = 1.05131 AU P = 2.53 years
1980 ET R. A. (1950) Decl. Delta r Mag.
Jan. 22 7 59.44 +18 43.1 0.077 1.061 15.0
27 8 28.73 +12 23.6
Feb. 1 8 50.98 + 7 22.0 0.097 1.081 15.8
6 9 07.75 + 3 37.5
11 9 20.46 + 0 57.7 0.127 1.111 16.5
16 9 30.29 - 0 51.6
21 9 38.18 - 2 02.9 0.166 1.150 17.2
1979 VA
Extension of the ephemeris on IAUC 3435:
1980 ET R. A. (1950) Decl. Delta r B
Feb. 11 4 48.03 +21 34.9 1.215 1.834 19.7
21 5 03.67 +21 49.5
Mar. 2 5 19.67 +22 01.3 1.579 1.998 20.5
1980 January 23 (3447) Brian G. Marsden
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