MPC
CBAT
ICQ
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 2007 Apr. 10.0 TT = JDT 2454200.5 T 2010 Oct. 1.9594 TT MPC q 3.419302 (2000.0) P Q n 0.1131436 Peri. 18.3784 -0.6756368 -0.7336784 a 4.233662 Node 114.1956 +0.6660663 -0.6495232 e 0.192354 Incl. 4.5478 +0.3160233 -0.1995886 P 8.71An 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 m2WARNING! 2007 05 30 23 41.31 -05 34.3 5.067 4.897 74.7 11.5 22.2 2007 06 04 23 43.77 -05 23.0 4.988 4.893 78.8 11.7 22.2 2007 06 09 23 46.01 -05 13.4 4.907 4.889 83.0 11.9 22.1 2007 06 14 23 48.01 -05 05.4 4.826 4.885 87.3 12.0 22.1 2007 06 19 23 49.76 -04 59.1 4.745 4.880 91.6 12.0 22.0 2007 06 24 23 51.26 -04 54.8 4.664 4.876 96.0 12.0 22.0 2007 06 29 23 52.48 -04 52.3 4.584 4.872 100.5 11.8 22.0 2007 07 04 23 53.41 -04 51.8 4.504 4.867 105.0 11.6 21.9 2007 07 09 23 54.05 -04 53.3 4.427 4.863 109.6 11.4 21.9 2007 07 14 23 54.39 -04 56.8 4.351 4.859 114.3 11.0 21.8 2007 07 19 23 54.41 -05 02.4 4.278 4.854 119.1 10.5 21.8 2007 07 24 23 54.12 -05 10.0 4.208 4.850 124.0 10.0 21.7 2007 07 29 23 53.52 -05 19.6 4.142 4.845 128.9 9.4 21.6 2007 08 03 23 52.60 -05 31.0 4.081 4.840 133.9 8.7 21.6 2007 08 08 23 51.38 -05 44.3 4.024 4.836 139.1 7.9 21.5 2007 08 13 23 49.86 -05 59.2 3.972 4.831 144.3 7.0 21.4 2007 08 18 23 48.07 -06 15.5 3.926 4.826 149.5 6.1 21.4 2007 08 23 23 46.04 -06 33.0 3.887 4.821 154.8 5.1 21.3 2007 08 28 23 43.78 -06 51.4 3.854 4.816 160.1 4.1 21.2 2007 09 02 23 41.35 -07 10.5 3.828 4.811 165.4 3.0 21.1 2007 09 07 23 38.77 -07 29.9 3.809 4.806 170.5 2.0 21.0 2007 09 12 23 36.10 -07 49.2 3.798 4.801 174.5 1.1 21.0 2007 09 17 23 33.37 -08 08.2 3.795 4.796 174.3 1.2 21.0 2007 09 22 23 30.65 -08 26.5 3.799 4.791 170.1 2.1 21.0 2007 09 27 23 27.99 -08 43.7 3.810 4.786 165.0 3.1 21.1 2007 10 02 23 25.43 -08 59.6 3.829 4.780 159.6 4.2 21.2 2007 10 07 23 23.01 -09 13.9 3.855 4.775 154.2 5.2 21.3 2007 10 12 23 20.79 -09 26.4 3.888 4.770 148.8 6.2 21.3 2007 10 17 23 18.80 -09 36.9 3.927 4.764 143.4 7.2 21.4 2007 10 22 23 17.08 -09 45.3 3.972 4.759 138.0 8.0 21.4 2007 10 27 23 15.64 -09 51.4 4.023 4.753 132.7 8.8 21.5 2007 11 01 23 14.52 -09 55.2 4.078 4.748 127.5 9.6 21.6 2007 11 06 23 13.73 -09 56.7 4.138 4.742 122.3 10.2 21.6 21.6 2007 11 11 23 13.27 -09 55.9 4.202 4.737 117.2 10.7 21.6 21.7 2007 11 16 23 13.16 -09 52.9 4.268 4.731 112.2 11.2 21.7 21.7 2007 11 21 23 13.39 -09 47.6 4.337 4.725 107.2 11.5 21.7 21.8 2007 11 26 23 13.95 -09 40.2 4.408 4.719 102.4 11.8 21.7 21.8 2007 12 01 23 14.84 -09 30.7 4.481 4.714 97.6 12.0 21.7 21.8 2007 12 06 23 16.05 -09 19.3 4.554 4.708 92.9 12.1 21.7 21.9 2007 12 11 23 17.57 -09 06.0 4.628 4.702 88.3 12.1 21.8 21.9 2007 12 16 23 19.39 -08 50.9 4.701 4.696 83.7 12.0 21.8 21.9 2007 12 21 23 21.48 -08 34.2 4.774 4.690 79.2 11.9 21.8 22.0 2007 12 26 23 23.84 -08 15.9 4.845 4.684 74.8 11.7 21.8 22.0 2007 12 31 23 26.44 -07 56.2 4.915 4.678 70.4 11.4 21.9 22.0 2008 01 05 23 29.27 -07 35.1 4.983 4.672 66.1 11.1 21.9 22.0 2008 01 10 23 32.32 -07 12.8 5.048 4.666 61.9 10.7 21.9 22.0 2008 01 15 23 35.57 -06 49.3 5.110 4.659 57.7 10.3 21.9 22.0 2008 01 20 23 39.01 -06 24.7 5.170 4.653 53.6 9.8 21.9 22.0 2008 01 25 23 42.61 -05 59.3 5.226 4.647 49.5 9.3 21.9 22.0 2008 01 30 23 46.37 -05 32.9 5.278 4.640 45.4 8.7 21.9 22.0 2008 02 04 23 50.27 -05 05.8 5.327 4.634 41.5 8.1 22.0 22.0 2008 02 09 23 54.30 -04 38.0 5.371 4.628 37.5 7.5 22.0 22.0 2008 02 14 23 58.45 -04 09.6 5.411 4.621 33.6 6.8 22.0 22.0 2008 02 19 00 02.70 -03 40.7 5.447 4.615 29.8 6.1 22.0 22.0 2008 02 24 00 07.05 -03 11.5 5.477 4.608 25.9 5.4 22.0 2008 02 29 00 11.47 -02 41.8 5.504 4.602 22.2 4.7 21.9 2008 03 05 00 15.97 -02 12.0 5.525 4.595 18.5 3.9 21.9 2008 03 10 00 20.53 -01 41.9 5.542 4.588 14.8 3.2 21.8 2008 03 15 00 25.14 -01 11.8 5.553 4.582 11.2 2.4 21.8 2008 03 20 00 29.79 -00 41.7 5.560 4.575 7.8 1.7 21.7 2008 03 25 00 34.48 -00 11.7 5.561 4.568 4.8 1.1 21.7 2008 03 30 00 39.19 +00 18.2 5.558 4.561 3.6 0.8 21.7 2008 04 04 00 43.92 +00 47.9 5.549 4.554 5.4 1.2 21.7 2008 04 09 00 48.65 +01 17.3 5.536 4.548 8.5 1.9 21.7 2008 04 14 00 53.39 +01 46.4 5.517 4.541 11.9 2.6 21.8 2008 04 19 00 58.11 +02 14.9 5.494 4.534 15.4 3.4 21.8 2008 04 24 01 02.82 +02 43.0 5.466 4.527 18.9 4.1 21.8 21.8 2008 04 29 01 07.50 +03 10.6 5.434 4.520 22.5 4.9 21.8 21.9 2008 05 04 01 12.14 +03 37.5 5.397 4.513 26.0 5.6 21.7 21.9 2008 05 09 01 16.74 +04 03.6 5.356 4.505 29.6 6.4 21.7 21.9 2008 05 14 01 21.29 +04 29.0 5.310 4.498 33.2 7.1 21.7 21.9 2008 05 19 01 25.77 +04 53.6 5.260 4.491 36.8 7.8 21.7 21.9 2008 05 24 01 30.17 +05 17.3 5.207 4.484 40.4 8.4 21.6 21.9 2008 05 29 01 34.50 +05 40.0 5.149 4.477 44.1 9.1 21.6 21.9 2008 06 03 01 38.72 +06 01.7 5.088 4.469 47.7 9.7 21.5 21.9 2008 06 08 01 42.84 +06 22.3 5.024 4.462 51.4 10.2 21.5 21.9 2008 06 13 01 46.84 +06 41.7 4.956 4.455 55.1 10.8 21.5 21.9 2008 06 18 01 50.70 +06 59.9 4.886 4.447 58.9 11.3 21.4 21.9 2008 06 23 01 54.42 +07 16.8 4.813 4.440 62.7 11.7 21.4 21.9 2008 06 28 01 57.97 +07 32.5 4.738 4.433 66.5 12.1 21.3 21.8 2008 07 03 02 01.35 +07 46.7 4.661 4.425 70.4 12.5 21.3 21.8This 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.