Central Bureau for Astronomical Telegrams
IAUC 2783: 1969 IV
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Circular No. 2783
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Cable Address: SATELLITES, NEWYORK
Western Union: RAPID SATELLITE CAMBMASS
PERIODIC COMET CHURYUMOV-GERASIMENKO (1969 IV)
The following prediction, by B. G. Marsden, is from an orbit
derived from 47 observations 1969 Sept. 9 to 1970 May 8. Perturbations
by Mercury to Pluto were taken into account. The uncertainty
in T is about +/- 1 day.
T = 1976 Apr. 16.7401 ET Epoch = 1976 Apr. 12.0 ET
Peri. = 11.3100 e = 0.630517
Node = 50.3755 1950.0 a = 3.514351 AU
Incl. = 7.1250 n = 0.1496016
q = 1.29849 AU P = 6.588 years
For dT = +1d
1975/76 ET R. A. (1950) Decl. Delta r dR.A. dDecl. m2
July 7 21 18.55 -26 04.4 2.071 2.985 -1m09 - 3'9 20.8
17 21 11.82 -27 03.0 -1.16 - 3.8
27 21 02.80 -28 03.3 1.852 2.851 -1.21 - 3.5 20.4
Aug. 6 20 52.07 -28 59.1 -1.23 - 3.0
16 20 40.60 -29 43.8 1.741 2.713 -1.21 - 2.4 20.0
26 20 29.64 -30 12.4 -1.17 - 1.9
Sept. 5 20 20.38 -30 23.2 1.734 2.572 -1.11 - 1.4 19.8
15 20 13.80 -30 16.5 -1.04 - 1.2
25 20 10.50 -29 54.8 1.802 2.427 -0.97 - 1.1 19.6
Oct. 5 20 10.67 -29 20.4 -0.92 - 1.2
15 20 14.27 -28 35.1 1.906 2.280 -0.88 - 1.4 19.5
25 20 21.05 -27 40.1 -0.85 - 1.7
Nov. 4 20 30.71 -26 35.4 2.012 2.131 -0.84 - 2.1 19.3
14 20 42.94 -25 20.3 -0.85 - 2.6
24 20 57.41 -23 54.2 2.100 1.982 -0.86 - 3.3 19.1
Dec. 4 21 13.86 -22 15.6 -0.88 - 3.9
14 21 32.06 -20 23.5 2.157 1.836 -0.91 - 4.7 18.8
24 21 51.81 -18 16.9 -0.95 - 5.6
Jan. 3 22 12.95 -15 54.8 2.182 1.694 -1.00 - 6.6 18.5
13 22 35.40 -13 16.7 -1.05 - 7.6
23 22 59.06 -10 22.7 2.178 1.564 -1.11 - 8.7 18.1
Feb. 2 23 23.95 - 7 13.3 -1.18 - 9.7
12 23 50.06 - 3 49.6 2.156 1.450 -1.26 -10.8 17.8
22 0 17.46 - 0 14.2 -1.34 -11.8
Mar. 3 0 46.22 + 3 29.9 2.130 1.363 -1.43 -12.6 17.5
m2 = 14.5 + 5 log Delta + 10 log r
1975 May 20 (2783) Brian G. Marsden
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