C/2007 Q3 (Siding Spring) Epoch 2009 Oct. 16.0 TT = JDT 2455120.5 T 2009 Oct. 7.2729 TT MPC q 2.251656 (2000.0) P Q z -0.000108 Peri. 2.0914 -0.8679425 -0.1782427 +/-0.000037 Node 149.4132 +0.4414338 -0.7046200 e 1.000243 Incl. 65.6503 +0.2276224 +0.6868334 From 98 observations 2007 Aug. 25-Dec. 17, mean residual 0".4.Elements are also available for the current standard epoch:
C/2007 Q3 (Siding Spring) Epoch 2008 May 14.0 TT = JDT 2454600.5 T 2009 Oct. 7.3570 TT MPC q 2.250874 (2000.0) P Q z +0.000060 Peri. 2.1227 -0.8681270 -0.1777088 +/-0.000037 Node 149.4233 +0.4409082 -0.7048980 e 0.999866 Incl. 65.6495 +0.2279373 +0.6866866An 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 2008 04 14 03 22.38 -39 37.3 6.384 5.875 55.5 8.1 16.2 2008 04 19 03 27.11 -39 10.7 6.348 5.836 55.3 8.1 16.2 2008 04 24 03 31.97 -38 45.9 6.309 5.796 55.3 8.2 16.1 2008 04 29 03 36.97 -38 23.0 6.268 5.757 55.4 8.3 16.1 2008 05 04 03 42.08 -38 01.9 6.225 5.717 55.6 8.4 16.0 2008 05 09 03 47.30 -37 43.0 6.180 5.677 56.0 8.5 16.0 2008 05 14 03 52.61 -37 26.1 6.133 5.638 56.5 8.6 15.9 2008 05 19 03 58.01 -37 11.5 6.083 5.598 57.1 8.7 15.9 2008 05 24 04 03.48 -36 59.0 6.032 5.558 57.8 8.9 15.9 2008 05 29 04 09.02 -36 48.8 5.979 5.518 58.6 9.0 15.8 2008 06 03 04 14.63 -36 41.1 5.924 5.478 59.4 9.2 15.7 2008 06 08 04 20.28 -36 35.7 5.868 5.439 60.4 9.3 15.7 2008 06 13 04 25.96 -36 32.8 5.810 5.399 61.4 9.5 15.6 2008 06 18 04 31.67 -36 32.4 5.751 5.359 62.5 9.7 15.6 2008 06 23 04 37.40 -36 34.6 5.691 5.319 63.7 9.9 15.5 2008 06 28 04 43.13 -36 39.3 5.629 5.278 64.9 10.0 15.5 2008 07 03 04 48.87 -36 46.7 5.567 5.238 66.1 10.2 15.4 2008 07 08 04 54.58 -36 56.7 5.503 5.198 67.4 10.4 15.4 2008 07 13 05 00.26 -37 09.3 5.439 5.158 68.7 10.6 15.3 2008 07 18 05 05.89 -37 24.6 5.374 5.118 70.1 10.8 15.2 2008 07 23 05 11.48 -37 42.5 5.309 5.078 71.5 10.9 15.2 2008 07 28 05 16.99 -38 03.1 5.243 5.037 72.8 11.1 15.1 2008 08 02 05 22.41 -38 26.2 5.176 4.997 74.2 11.3 15.1 2008 08 07 05 27.73 -38 52.0 5.110 4.957 75.6 11.4 15.0 2008 08 12 05 32.93 -39 20.2 5.043 4.916 77.0 11.6 14.9 2008 08 17 05 37.99 -39 50.9 4.977 4.876 78.4 11.7 14.9 2008 08 22 05 42.90 -40 24.0 4.910 4.835 79.8 11.9 14.8 2008 08 27 05 47.62 -40 59.3 4.844 4.795 81.2 12.0 14.7 2008 09 01 05 52.15 -41 36.8 4.778 4.754 82.6 12.2 14.7 2008 09 06 05 56.44 -42 16.3 4.712 4.714 84.0 12.3 14.6 2008 09 11 06 00.49 -42 57.7 4.646 4.673 85.3 12.4 14.5 2008 09 16 06 04.25 -43 40.7 4.581 4.633 86.7 12.5 14.5 2008 09 21 06 07.72 -44 25.1 4.517 4.592 88.0 12.6 14.4 2008 09 26 06 10.84 -45 10.8 4.453 4.552 89.2 12.7 14.3 2008 10 01 06 13.60 -45 57.5 4.390 4.511 90.5 12.8 14.3 2008 10 06 06 15.95 -46 44.7 4.328 4.471 91.7 12.9 14.2 2008 10 11 06 17.87 -47 32.2 4.267 4.430 92.9 13.0 14.1 2008 10 16 06 19.33 -48 19.5 4.207 4.390 94.0 13.1 14.0 2008 10 21 06 20.28 -49 06.2 4.147 4.349 95.0 13.2 14.0 2008 10 26 06 20.71 -49 52.0 4.089 4.309 96.1 13.3 13.9 2008 10 31 06 20.58 -50 36.1 4.032 4.268 97.0 13.3 13.8 2008 11 05 06 19.86 -51 18.0 3.976 4.228 97.9 13.4 13.8 2008 11 10 06 18.55 -51 57.2 3.921 4.187 98.8 13.5 13.7 2008 11 15 06 16.64 -52 32.9 3.867 4.147 99.5 13.6 13.6 2008 11 20 06 14.15 -53 04.5 3.815 4.107 100.2 13.7 13.5 2008 11 25 06 11.08 -53 31.3 3.764 4.066 100.8 13.8 13.5 2008 11 30 06 07.48 -53 52.6 3.715 4.026 101.3 13.9 13.4 2008 12 05 06 03.41 -54 07.7 3.667 3.986 101.7 14.0 13.3 2008 12 10 05 58.95 -54 16.0 3.620 3.946 102.1 14.1 13.3 2008 12 15 05 54.20 -54 16.9 3.576 3.905 102.3 14.3 13.2 2008 12 20 05 49.26 -54 10.1 3.533 3.865 102.4 14.4 13.1 2008 12 25 05 44.25 -53 55.0 3.492 3.826 102.4 14.5 13.0 2008 12 30 05 39.31 -53 31.6 3.452 3.786 102.3 14.7 13.0 2009 01 04 05 34.56 -52 59.7 3.415 3.746 102.1 14.9 12.9 2009 01 09 05 30.12 -52 19.4 3.379 3.706 101.7 15.1 12.8 2009 01 14 05 26.10 -51 30.9 3.346 3.667 101.2 15.3 12.8 2009 01 19 05 22.57 -50 34.7 3.315 3.627 100.6 15.5 12.7 2009 01 24 05 19.61 -49 30.9 3.286 3.588 99.9 15.7 12.6 2009 01 29 05 17.28 -48 20.2 3.259 3.549 99.0 15.9 12.6 2009 02 03 05 15.61 -47 03.2 3.234 3.510 98.0 16.1 12.5 2009 02 08 05 14.62 -45 40.5 3.211 3.471 96.9 16.4 12.4 2009 02 13 05 14.30 -44 12.7 3.191 3.433 95.7 16.6 12.4 2009 02 18 05 14.64 -42 40.5 3.173 3.394 94.3 16.9 12.3 2009 02 23 05 15.64 -41 04.4 3.158 3.356 92.9 17.1 12.3 2009 02 28 05 17.26 -39 25.3 3.145 3.318 91.3 17.4 12.2 2009 03 05 05 19.49 -37 43.6 3.134 3.280 89.6 17.6 12.1 2009 03 10 05 22.29 -36 00.2 3.126 3.243 87.8 17.8 12.1 2009 03 15 05 25.62 -34 15.5 3.120 3.206 85.9 18.0 12.0 2009 03 20 05 29.45 -32 30.0 3.116 3.169 83.9 18.2 12.0 2009 03 25 05 33.76 -30 44.3 3.114 3.132 81.8 18.4 11.9 2009 03 30 05 38.52 -28 58.9 3.114 3.096 79.7 18.5 11.9 2009 04 04 05 43.69 -27 14.4 3.116 3.060 77.5 18.6 11.8 2009 04 09 05 49.24 -25 31.0 3.121 3.024 75.2 18.7 11.8 2009 04 14 05 55.14 -23 49.2 3.126 2.989 72.9 18.7 11.7 2009 04 19 06 01.37 -22 09.3 3.134 2.954 70.5 18.7 11.7 2009 04 24 06 07.91 -20 31.6 3.143 2.920 68.1 18.6 11.6 2009 04 29 06 14.74 -18 56.4 3.153 2.886 65.6 18.5 11.6 2009 05 04 06 21.82 -17 24.0 3.164 2.853 63.1 18.4 11.6 2009 05 09 06 29.15 -15 54.6 3.176 2.820 60.5 18.2 11.5 2009 05 14 06 36.69 -14 28.2 3.189 2.788 58.0 17.9 11.5 2009 05 19 06 44.43 -13 05.1 3.202 2.756 55.4 17.6 11.4