MPEC 2003-E32 : COMET 79P/DU TOIT-HARTLEY
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M.P.E.C. 2003-E32 Issued 2003 Mar. 8, 19:56 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET 79P/DU TOIT-HARTLEY
Observations:
0079P C2003 03 04.29782 17 46 39.71 -26 55 05.0 844
0079P C2003 03 04.31394 17 46 43.00 -26 55 05.9 844
0079P C2003 03 04.32929 17 46 46.65 -26 55 08.2 844
0079P C2003 03 04.35406 17 46 52.16 -26 55 11.3 844
0079P C2003 03 04.35618 17 46 52.78 -26 55 11.5 844
0079P C2003 03 05.27024 17 50 19.60 -26 56 34.1 844
0079P C2003 03 05.28493 17 50 22.95 -26 56 35.9 844
0079P C2003 03 05.31419 17 50 29.40 -26 56 38.0 17.4 T 844
0079P C2003 03 05.31715 17 50 30.05 -26 56 38.8 17.4 T 844
0079P C2003 03 05.32309 17 50 31.28 -26 56 39.3 17.4 T 844
0079P C2003 03 05.34970 17 50 37.43 -26 56 41.6 844
Observer details:
844 Los Molinos. Observers F. Artigue, H. Cucurullo, G. Tancredi. 0.46-m
f/2.8 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
030304 844 0.03- 0.00- 030305 844 0.03- 0.00- MPC 40670 +0.060 day
Orbital elements:
79P/du Toit-Hartley
Epoch 2003 Feb. 10.0 TT = JDT 2452680.5
T 2003 Feb. 15.37660 TT MPC
q 1.2299740 (2000.0) P Q
n 0.18684136 Peri. 253.07283 -0.93234447 +0.35937328
a 3.0303122 Node 307.97090 -0.30954477 -0.85023413
e 0.5941098 Incl. 2.89447 -0.18685778 -0.38464630
P 5.28
From 52 observations 1982 Feb. 5 (component A)-2003 Mar. 5, mean residual
0".89. Nongravitational parameters A1 = +0.30 +/- 0.06, A2 = +0.0113
+/- 0.0003.
Ephemeris:
79P/du Toit-Hartley
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2003 03 02 17 37.87 -26 50.1 1.028 1.242 75.9 50.7 17.0 22.4
2003 03 12 18 14.85 -26 57.7 1.023 1.264 77.7 50.1 17.1 22.4
2003 03 22 18 48.28 -26 34.3 1.018 1.297 80.1 49.2 17.2 22.4
2003 04 01 19 17.70 -25 49.8 1.013 1.338 83.4 47.9 17.3 22.5
2003 04 11 19 42.77 -24 53.5 1.004 1.387 87.5 46.2 17.4 22.5
2003 04 21 20 03.39 -23 53.9 0.993 1.442 92.4 44.1 17.6 22.5
2003 05 01 20 19.44 -22 57.9 0.978 1.503 98.4 41.5 17.7 22.5
2003 05 11 20 30.74 -22 11.3 0.961 1.567 105.3 38.4 17.9 22.4
2003 05 21 20 37.15 -21 38.0 0.944 1.635 113.4 34.6 18.0 22.4
2003 05 31 20 38.56 -21 20.2 0.929 1.705 122.6 30.1 18.2 22.3
2003 06 10 20 35.00 -21 17.8 0.921 1.776 132.9 24.7 18.3 22.2
2003 06 20 20 27.02 -21 27.8 0.925 1.848 144.3 18.7 18.5 22.1
2003 06 30 20 15.64 -21 44.7 0.945 1.921 156.5 12.2 18.7 22.0
2003 07 10 20 02.51 -22 02.2 0.986 1.994 169.0 5.6 19.0 21.9
2003 07 20 19 49.57 -22 15.2 1.051 2.067 178.0 1.0 19.3 21.8
2003 07 30 19 38.45 -22 21.5 1.139 2.139 166.2 6.5 19.6 22.4
Brian G. Marsden (C) Copyright 2003 MPC M.P.E.C. 2003-E32
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