MPC
CBAT
ICQ
46P/Wirtanen
Epoch 2008 Jan. 15.0 TT = JDT 2454480.5
T 2008 Feb. 2.4159 TT MPC
q 1.057476 (2000.0) P Q
n 0.1811764 Peri. 356.3484 +0.1976423 -0.9593279
a 3.093154 Node 82.1753 +0.9044598 +0.0991706
e 0.658124 Incl. 11.7392 +0.3780080 +0.2643011
P 5.44
From 252 observations 1995-2002, mean residual 0".6. Nongravitational
parameters A1 = +0.23, A2 = -0.1892.
Elements are also available for the current standard epoch:
46P/Wirtanen Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 T 2008 Feb. 2.4339 TT MPC q 1.057654 (2000.0) P Q n 0.1812041 Peri. 356.3444 +0.1977062 -0.9593146 a 3.092840 Node 82.1755 +0.9044534 +0.0992307 e 0.658032 Incl. 11.7392 +0.3779897 +0.2643269 P 5.44An 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.
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 2007 05 30 22 39.12 -19 22.0 2.565 2.823 94.0 21.0 17.8 23.3 2007 06 04 22 43.56 -19 22.5 2.463 2.788 97.8 21.1 17.6 23.2 2007 06 09 22 47.73 -19 26.2 2.363 2.753 101.6 21.2 17.5 23.1 2007 06 14 22 51.60 -19 33.4 2.264 2.717 105.4 21.1 17.3 23.0 2007 06 19 22 55.13 -19 44.5 2.166 2.681 109.4 20.9 17.1 22.8 2007 06 24 22 58.29 -19 59.8 2.070 2.644 113.4 20.7 16.9 22.7 2007 06 29 23 01.04 -20 19.6 1.977 2.607 117.5 20.2 16.7 22.6 2007 07 04 23 03.33 -20 44.3 1.886 2.570 121.7 19.7 16.5 22.4 2007 07 09 23 05.11 -21 14.1 1.798 2.532 126.0 19.0 16.3 22.3 2007 07 14 23 06.32 -21 49.3 1.713 2.494 130.4 18.1 16.1 22.1 2007 07 19 23 06.91 -22 30.1 1.632 2.456 134.8 17.1 15.9 21.9 2007 07 24 23 06.80 -23 16.4 1.555 2.417 139.3 15.9 15.7 21.7 2007 07 29 23 05.96 -24 08.0 1.483 2.378 143.7 14.6 15.5 21.6 2007 08 03 23 04.33 -25 04.6 1.415 2.339 148.1 13.3 15.3 21.4 2007 08 08 23 01.86 -26 05.5 1.353 2.299 152.2 11.9 15.1 21.2 2007 08 13 22 58.52 -27 09.7 1.297 2.259 155.8 10.6 14.9 21.0 2007 08 18 22 54.32 -28 15.8 1.246 2.219 158.5 9.6 14.7 20.8 2007 08 23 22 49.29 -29 21.9 1.201 2.178 159.7 9.3 14.5 20.7 2007 08 28 22 43.52 -30 26.3 1.163 2.137 159.0 9.7 14.3 20.6 2007 09 02 22 37.13 -31 26.7 1.131 2.096 156.7 11.0 14.1 20.6 2007 09 07 22 30.30 -32 21.2 1.105 2.054 153.0 12.9 13.9 20.5 2007 09 12 22 23.24 -33 07.7 1.084 2.013 148.5 15.1 13.7 20.5 2007 09 17 22 16.23 -33 44.7 1.069 1.971 143.6 17.6 13.6 20.5 2007 09 22 22 09.54 -34 11.1 1.059 1.928 138.4 20.2 13.4 20.6 2007 09 27 22 03.44 -34 26.5 1.053 1.886 133.1 22.8 13.2 20.6 2007 10 02 21 58.13 -34 30.8 1.050 1.843 127.9 25.4 13.1 20.6 2007 10 07 21 53.82 -34 24.6 1.051 1.801 122.8 27.8 12.9 20.6 2007 10 12 21 50.65 -34 08.2 1.053 1.758 117.9 30.1 12.8 20.6 2007 10 17 21 48.72 -33 42.5 1.058 1.715 113.2 32.3 12.6 20.7 2007 10 22 21 48.07 -33 08.2 1.063 1.673 108.7 34.3 12.5 20.7 2007 10 27 21 48.69 -32 26.0 1.068 1.630 104.4 36.2 12.3 20.7 2007 11 01 21 50.55 -31 36.6 1.073 1.588 100.4 38.0 12.2 20.7 2007 11 06 21 53.62 -30 40.3 1.078 1.546 96.6 39.6 12.0 20.7 2007 11 11 21 57.85 -29 37.1 1.082 1.504 93.0 41.1 11.8 20.7 2007 11 16 22 03.17 -28 27.4 1.084 1.463 89.6 42.5 11.7 20.7 2007 11 21 22 09.51 -27 10.9 1.085 1.423 86.5 43.9 11.5 20.6 2007 11 26 22 16.80 -25 47.7 1.084 1.383 83.7 45.2 11.3 20.6 2007 12 01 22 24.99 -24 17.5 1.081 1.345 81.0 46.4 11.1 20.6 2007 12 06 22 34.02 -22 39.8 1.076 1.307 78.6 47.6 10.9 20.5 2007 12 11 22 43.85 -20 54.3 1.070 1.272 76.4 48.8 10.7 20.5 2007 12 16 22 54.44 -19 00.7 1.061 1.237 74.4 50.0 10.5 20.5 2007 12 21 23 05.75 -16 58.6 1.051 1.205 72.6 51.1 10.3 20.4 2007 12 26 23 17.76 -14 47.7 1.039 1.176 71.0 52.3 10.1 20.4 2007 12 31 23 30.45 -12 27.7 1.026 1.149 69.7 53.4 10.0 20.3 2008 01 05 23 43.82 -09 58.3 1.012 1.125 68.6 54.5 9.8 20.3 2008 01 10 23 57.88 -07 19.6 0.997 1.104 67.7 55.5 9.6 20.2 2008 01 15 00 12.66 -04 31.6 0.982 1.086 67.1 56.5 9.5 20.2 2008 01 20 00 28.17 -01 34.9 0.967 1.073 66.7 57.4 9.4 20.2 2008 01 25 00 44.46 +01 29.5 0.953 1.064 66.6 58.1 9.3 20.1 2008 01 30 01 01.59 +04 40.7 0.941 1.058 66.6 58.7 9.2 20.1 2008 02 04 01 19.62 +07 56.7 0.930 1.058 66.9 59.0 9.2 20.1 2008 02 09 01 38.62 +11 15.5 0.922 1.061 67.5 59.1 9.2 20.1 2008 02 14 01 58.68 +14 34.0 0.918 1.069 68.2 59.0 9.2 20.1 2008 02 19 02 19.82 +17 49.0 0.917 1.081 69.0 58.6 9.3 20.1 2008 02 24 02 42.08 +20 56.5 0.921 1.097 70.0 57.9 9.4 20.1 2008 02 29 03 05.44 +23 52.7 0.929 1.116 71.0 57.1 9.6 20.1 2008 03 05 03 29.84 +26 33.7 0.942 1.139 72.1 56.0 9.7 20.2 2008 03 10 03 55.14 +28 55.9 0.961 1.165 73.2 54.7 9.9 20.2 2008 03 15 04 21.12 +30 56.6 0.985 1.194 74.2 53.3 10.1 20.3 2008 03 20 04 47.48 +32 34.0 1.014 1.225 75.1 51.8 10.4 20.4 2008 03 25 05 13.90 +33 47.3 1.048 1.259 75.9 50.2 10.6 20.5 2008 03 30 05 40.03 +34 36.9 1.088 1.294 76.5 48.6 10.9 20.6 2008 04 04 06 05.57 +35 04.1 1.132 1.331 77.0 47.1 11.1 20.7 2008 04 09 06 30.23 +35 11.0 1.181 1.369 77.2 45.5 11.4 20.8 2008 04 14 06 53.83 +35 00.0 1.234 1.408 77.2 44.0 11.7 20.9 2008 04 19 07 16.21 +34 33.9 1.292 1.448 77.1 42.5 12.0 21.0 2008 04 24 07 37.34 +33 55.3 1.353 1.489 76.7 41.1 12.2 21.1 2008 04 29 07 57.20 +33 06.6 1.418 1.530 76.2 39.7 12.5 21.3 2008 05 04 08 15.84 +32 09.9 1.486 1.572 75.5 38.4 12.8 21.4 2008 05 09 08 33.34 +31 07.1 1.556 1.614 74.6 37.1 13.1 21.5 2008 05 14 08 49.77 +29 59.7 1.630 1.657 73.6 35.8 13.3 21.6 2008 05 19 09 05.23 +28 49.0 1.705 1.699 72.4 34.6 13.6 21.7 2008 05 24 09 19.79 +27 36.1 1.783 1.742 71.1 33.4 13.9 21.9 2008 05 29 09 33.56 +26 21.7 1.863 1.785 69.7 32.2 14.1 22.0 2008 06 03 09 46.62 +25 06.4 1.944 1.828 68.2 31.0 14.4 22.1 2008 06 08 09 59.04 +23 50.8 2.026 1.870 66.5 29.9 14.6 22.2 2008 06 13 10 10.89 +22 35.3 2.109 1.913 64.8 28.7 14.8 22.3 2008 06 18 10 22.23 +21 20.2 2.194 1.955 63.0 27.6 15.1 22.4 2008 06 23 10 33.12 +20 05.8 2.278 1.997 61.1 26.5 15.3 22.5 2008 06 28 10 43.60 +18 52.1 2.363 2.039 59.2 25.4 15.5 22.6 2008 07 03 10 53.72 +17 39.3 2.448 2.081 57.2 24.2 15.7 22.7