MPEC 2007-P17 : COMET 46P/WIRTANEN
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M.P.E.C. 2007-P17 Issued 2007 Aug. 6, 21:02 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://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET 46P/WIRTANEN
Observations:
0046P C2007 08 04.09400 23 03 42.58 -25 18 24.0 19.0 N EP017204
0046P C2007 08 05.10376 23 03 14.39 -25 30 33.9 18.7 N EP017204
0046P C2007 08 05.11215 23 03 14.14 -25 30 40.0 EP017204
0046P C2007 08 06.73779 23 02 24.39 -25 50 28.6 19.9 N EP017415
0046P C2007 08 06.74622 23 02 24.07 -25 50 34.8 20.6 N EP017415
0046P C2007 08 06.75606 23 02 23.72 -25 50 42.1 20.1 N EP017415
Observer details:
204 Schiaparelli Observatory. Observers L. Buzzi, F. Luppi. Measurer
L. Buzzi. 0.60-m f/4.64 reflector + CCD.
415 Kambah, near Canberra. Observer D. Herald. 0.36-m f/3.9
Schmidt-Cassegrain + CCD.
Orbital elements:
46P/Wirtanen
Epoch 2008 Jan. 15.0 TT = JDT 2454480.5
T 2008 Feb. 2.49577 TT MPC
q 1.0574872 (2000.0) P Q
n 0.18116891 Peri. 356.34763 +0.19766327 -0.95932337
a 3.0932399 Node 82.17486 +0.90445704 +0.09918948
e 0.6581296 Incl. 11.73926 +0.37800357 +0.26431064
P 5.44
From 505 observations 1995 June 26-2007 Aug. 6, mean residual 0".82. Non-
gravitational parameters A1 = +0.34 +/- 0.01, A2 = -0.1373 +/- 0.0002.
Ephemeris:
46P/Wirtanen
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2007 07 29 23 05.82 -24 08.7 1.483 2.379 143.8 14.6 15.5 21.6
2007 08 08 23 01.70 -26 06.2 1.354 2.300 152.2 11.9 15.1 21.2
2007 08 18 22 54.14 -28 16.4 1.247 2.220 158.5 9.6 14.7 20.8
2007 08 28 22 43.33 -30 26.8 1.164 2.138 159.0 9.7 14.3 20.6
2007 09 07 22 30.10 -32 21.5 1.105 2.055 153.0 12.9 13.9 20.5
2007 09 17 22 16.04 -33 44.9 1.070 1.971 143.5 17.6 13.6 20.5
2007 09 27 22 03.25 -34 26.5 1.054 1.887 133.1 22.8 13.2 20.6
2007 10 07 21 53.65 -34 24.5 1.052 1.801 122.8 27.8 12.9 20.6
2007 10 17 21 48.57 -33 42.3 1.059 1.716 113.2 32.3 12.6 20.7
2007 10 27 21 48.55 -32 25.9 1.069 1.631 104.4 36.2 12.3 20.7
2007 11 06 21 53.50 -30 40.2 1.079 1.546 96.5 39.6 12.0 20.7
2007 11 16 22 03.05 -28 27.4 1.085 1.464 89.6 42.5 11.7 20.7
2007 11 26 22 16.69 -25 47.9 1.085 1.384 83.6 45.1 11.3 20.6
2007 12 06 22 33.90 -22 40.2 1.078 1.308 78.5 47.6 10.9 20.5
2007 12 16 22 54.32 -19 01.3 1.063 1.238 74.3 49.9 10.5 20.5
2007 12 26 23 17.64 -14 48.6 1.040 1.176 71.0 52.2 10.1 20.4
2008 01 05 23 43.69 -09 59.6 1.013 1.125 68.6 54.5 9.8 20.3
2008 01 15 00 12.52 -04 33.2 0.983 1.087 67.1 56.5 9.5 20.2
2008 01 25 00 44.31 +01 27.5 0.955 1.064 66.5 58.1 9.3 20.1
2008 02 04 01 19.44 +07 54.3 0.932 1.058 66.9 59.0 9.2 20.1
2008 02 14 01 58.47 +14 31.3 0.919 1.069 68.1 59.0 9.3 20.1
2008 02 24 02 41.84 +20 53.7 0.922 1.097 69.9 57.9 9.4 20.1
2008 03 05 03 29.56 +26 31.0 0.943 1.139 72.1 55.9 9.7 20.2
2008 03 15 04 20.80 +30 54.3 0.985 1.194 74.2 53.3 10.1 20.3
2008 03 25 05 13.56 +33 45.5 1.049 1.258 75.8 50.2 10.6 20.5
2008 04 04 06 05.23 +35 03.0 1.133 1.330 76.9 47.1 11.1 20.7
2008 04 14 06 53.51 +34 59.5 1.235 1.407 77.2 44.0 11.7 20.9
2008 04 24 07 37.05 +33 55.2 1.353 1.488 76.7 41.1 12.2 21.1
2008 05 04 08 15.59 +32 10.1 1.486 1.571 75.4 38.4 12.8 21.4
2008 05 14 08 49.56 +30 00.0 1.630 1.656 73.5 35.8 13.3 21.6
2008 05 24 09 19.61 +27 36.5 1.783 1.742 71.1 33.4 13.9 21.9
2008 06 03 09 46.46 +25 06.9 1.944 1.827 68.1 31.0 14.4 22.1
2008 06 13 10 10.75 +22 35.9 2.109 1.912 64.8 28.7 14.8 22.3
2008 06 23 10 33.00 +20 06.3 2.278 1.996 61.1 26.5 15.3 22.5
Brian G. Marsden (C) Copyright 2007 MPC M.P.E.C. 2007-P17
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