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31P/Schwassmann-Wachmann

Orbital Elements

The following orbital elements are taken from MPC 59600:

31P/Schwassmann-Wachmann
Epoch 2010 Oct. 11.0 TT = JDT 2455480.5
T 2010 Sept. 29.4910 TT                                 MPC
q   3.424323             (2000.0)            P               Q
n   0.1128003      Peri.   17.9324      -0.6698341      -0.7389812
a   4.242245       Node   114.1901      +0.6711633      -0.6442470
e   0.192804       Incl.    4.5468      +0.3175878      -0.1971104
P   8.74
From 535 observations 1979-2003, mean residual 0".9.  Nongravitational
     parameters A1 = +1.04, A2 = -0.2724.

Elements are also available for the current standard epoch:

31P/Schwassmann-Wachmann
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5
T 2010 Sept. 30.7824 TT                                 MPC
q   3.423200             (2000.0)            P               Q
n   0.1130014      Peri.   18.1440      -0.6725277      -0.7365295
a   4.237213       Node   114.1877      +0.6688037      -0.6466976
e   0.192110       Incl.    4.5475      +0.3168723      -0.1982588
P   8.72

An explanation of the orbital elements is available.

These orbital elements are also available in forms suitable for loading into a number of popular planetarium-type software programs.

Ephemeris

The following ephemeris is at intervals of five days. A daily ephemeris covering the same time interval is also available.

Personalized ephemerides for this (and other) objects may be generated using the Minor Planet & Comet Ephemeris Service.

Recent magnitude estimates for this comet (as reported to the ICQ) may be available.

Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2

WARNING!

This comet gets close to the sun during the period covered in the ephemeris below. Observers are warned to be wary of observing comets near the sun. NEVER point any kind of optical instrument at the sun--instant blindness will be the probable result.

2008 09 11 02 20.57 +08 11.8 3.572 4.318 132.7 9.9 20.5 21.1 2008 09 16 02 19.39 +08 00.6 3.512 4.310 137.8 9.0 20.4 21.0 2008 09 21 02 17.86 +07 47.8 3.457 4.302 143.1 8.1 20.4 20.9 2008 09 26 02 15.99 +07 33.7 3.408 4.294 148.4 7.0 20.3 20.8 2008 10 01 02 13.81 +07 18.6 3.365 4.286 153.7 5.9 20.3 20.8 2008 10 06 02 11.37 +07 02.5 3.329 4.278 159.1 4.8 20.2 20.7 2008 10 11 02 08.69 +06 46.0 3.300 4.270 164.5 3.6 20.2 20.6 2008 10 16 02 05.85 +06 29.2 3.278 4.262 169.5 2.4 20.2 20.5 2008 10 21 02 02.88 +06 12.5 3.264 4.254 173.4 1.5 20.1 20.4 2008 10 26 01 59.85 +05 56.2 3.257 4.246 173.5 1.5 20.1 20.4 2008 10 31 01 56.82 +05 40.7 3.258 4.238 169.6 2.4 20.1 20.5 2008 11 05 01 53.86 +05 26.3 3.267 4.230 164.5 3.6 20.1 20.5 2008 11 10 01 51.03 +05 13.4 3.283 4.222 159.0 4.8 20.1 20.6 2008 11 15 01 48.39 +05 02.3 3.306 4.214 153.5 6.0 20.1 20.7 2008 11 20 01 45.98 +04 53.1 3.336 4.206 148.0 7.2 20.1 20.8 2008 11 25 01 43.85 +04 46.1 3.372 4.198 142.5 8.2 20.1 20.8 2008 11 30 01 42.04 +04 41.4 3.414 4.190 137.0 9.2 20.1 20.9 2008 12 05 01 40.58 +04 39.1 3.461 4.182 131.7 10.1 20.1 21.0 2008 12 10 01 39.50 +04 39.3 3.514 4.174 126.4 10.9 20.1 21.0 2008 12 15 01 38.80 +04 42.0 3.570 4.166 121.2 11.7 20.2 21.1 2008 12 20 01 38.49 +04 47.1 3.630 4.158 116.1 12.3 20.2 21.1 2008 12 25 01 38.58 +04 54.6 3.692 4.149 111.1 12.8 20.2 21.2 2008 12 30 01 39.06 +05 04.3 3.758 4.141 106.2 13.2 20.2 21.2 2009 01 04 01 39.93 +05 16.3 3.825 4.133 101.4 13.5 20.2 21.3 2009 01 09 01 41.17 +05 30.3 3.893 4.125 96.7 13.7 20.3 21.3 2009 01 14 01 42.78 +05 46.1 3.962 4.117 92.1 13.8 20.3 21.4 2009 01 19 01 44.73 +06 03.8 4.031 4.109 87.6 13.8 20.3 21.4 2009 01 24 01 47.01 +06 23.0 4.100 4.100 83.1 13.8 20.3 21.4 2009 01 29 01 49.62 +06 43.7 4.168 4.092 78.8 13.7 20.3 21.4 2009 02 03 01 52.52 +07 05.8 4.235 4.084 74.5 13.5 20.4 21.5 2009 02 08 01 55.70 +07 29.0 4.300 4.076 70.4 13.2 20.4 21.5 2009 02 13 01 59.15 +07 53.2 4.364 4.068 66.3 12.8 20.4 21.5 2009 02 18 02 02.84 +08 18.4 4.425 4.060 62.2 12.4 20.4 21.5 2009 02 23 02 06.77 +08 44.3 4.484 4.051 58.3 12.0 20.4 21.5 2009 02 28 02 10.92 +09 10.8 4.540 4.043 54.4 11.5 20.4 21.5 2009 03 05 02 15.28 +09 37.8 4.592 4.035 50.5 10.9 20.4 21.5 2009 03 10 02 19.82 +10 05.2 4.642 4.027 46.7 10.3 20.4 21.5 2009 03 15 02 24.54 +10 32.8 4.688 4.019 43.0 9.7 20.4 21.5 2009 03 20 02 29.43 +11 00.6 4.731 4.011 39.3 9.1 20.4 21.5 2009 03 25 02 34.47 +11 28.5 4.770 4.002 35.7 8.4 20.4 21.5 2009 03 30 02 39.65 +11 56.3 4.805 3.994 32.1 7.6 20.4 21.5 2009 04 04 02 44.96 +12 23.9 4.835 3.986 28.6 6.9 20.4 21.4 2009 04 09 02 50.39 +12 51.3 4.862 3.978 25.1 6.1 20.4 21.4 2009 04 14 02 55.94 +13 18.4 4.885 3.970 21.6 5.3 20.4 21.4 2009 04 19 03 01.58 +13 45.0 4.903 3.962 18.2 4.6 20.4 21.3 2009 04 24 03 07.32 +14 11.2 4.917 3.954 14.9 3.7 20.4 21.3 2009 04 29 03 13.14 +14 36.8 4.927 3.946 11.6 2.9 20.4 21.2 2009 05 04 03 19.03 +15 01.7 4.932 3.938 8.4 2.1 20.4 21.2 2009 05 09 03 24.99 +15 26.0 4.933 3.930 5.4 1.4 20.4 21.1 2009 05 14 03 31.00 +15 49.5 4.930 3.922 3.3 0.9 20.3 21.1 2009 05 19 03 37.06 +16 12.2 4.923 3.914 3.8 1.0 20.3 21.1 2009 05 24 03 43.16 +16 34.0 4.911 3.906 6.3 1.6 20.3 21.1 2009 05 29 03 49.29 +16 55.0 4.894 3.898 9.3 2.4 20.3 21.2 2009 06 03 03 55.44 +17 14.9 4.874 3.890 12.4 3.2 20.2 21.2 2009 06 08 04 01.60 +17 33.9 4.850 3.882 15.6 4.0 20.2 21.2 2009 06 13 04 07.76 +17 51.8 4.821 3.874 18.9 4.9 20.2 21.3 2009 06 18 04 13.91 +18 08.7 4.788 3.866 22.1 5.7 20.1 21.3 2009 06 23 04 20.05 +18 24.6 4.752 3.858 25.4 6.5 20.1 21.3 2009 06 28 04 26.15 +18 39.3 4.712 3.851 28.7 7.3 20.1 21.3 2009 07 03 04 32.21 +18 53.0 4.668 3.843 32.0 8.0 20.0 21.3 2009 07 08 04 38.22 +19 05.5 4.620 3.835 35.3 8.8 20.0 21.3 2009 07 13 04 44.16 +19 16.9 4.569 3.827 38.6 9.5 20.0 21.3 2009 07 18 04 50.03 +19 27.3 4.515 3.820 42.0 10.2 19.9 21.3 2009 07 23 04 55.80 +19 36.5 4.457 3.812 45.4 10.9 19.9 21.3 2009 07 28 05 01.46 +19 44.7 4.396 3.805 48.8 11.6 19.8 21.3 2009 08 02 05 07.00 +19 51.8 4.333 3.797 52.2 12.2 19.8 21.3 2009 08 07 05 12.40 +19 57.9 4.266 3.789 55.8 12.8 19.7 21.3 2009 08 12 05 17.65 +20 03.1 4.198 3.782 59.3 13.3 19.7 21.3 2009 08 17 05 22.72 +20 07.3 4.127 3.775 62.9 13.8 19.6 21.3 2009 08 22 05 27.60 +20 10.7 4.053 3.767 66.6 14.3 19.6 21.2 2009 08 27 05 32.27 +20 13.2 3.978 3.760 70.3 14.7 19.5 21.2 2009 09 01 05 36.69 +20 15.0 3.902 3.753 74.1 15.0 19.4 21.2 2009 09 06 05 40.87 +20 16.2 3.824 3.745 77.9 15.3 19.4 21.1 2009 09 11 05 44.76 +20 16.7 3.745 3.738 81.9 15.5 19.3 21.1 2009 09 16 05 48.36 +20 16.7 3.666 3.731 85.9 15.6 19.3 21.0 2009 09 21 05 51.62 +20 16.4 3.586 3.724 90.0 15.6 19.2 21.0 2009 09 26 05 54.53 +20 15.6 3.506 3.717 94.2 15.6 19.1 20.9 2009 10 01 05 57.06 +20 14.7 3.427 3.710 98.5 15.5 19.1 20.9 2009 10 06 05 59.19 +20 13.6 3.349 3.703 102.9 15.3 19.0 20.8 2009 10 11 06 00.90 +20 12.4 3.272 3.696 107.4 14.9 18.9 20.7 2009 10 16 06 02.16 +20 11.3 3.197 3.689 112.1 14.5 18.9 20.7

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