C/2009 G1 (STEREO) Epoch 2009 Mar. 30.0 TT = JDT 2454920.5 T 2009 Apr. 16.5094 TT MPC q 1.128764 (2000.0) P Q z +0.001961 Peri. 175.4483 +0.5294252 -0.2290281 +/-0.000057 Node 120.6359 -0.8052453 +0.1673763 e 0.997787 Incl. 108.3108 -0.2670001 -0.9589219 From 100 observations 2009 Apr. 9-July 4, mean residual 0".8.Elements are also available for the current standard epoch:
C/2009 G1 (STEREO) Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 T 2009 Apr. 16.5059 TT MPC q 1.128933 (2000.0) P Q z +0.001998 Peri. 175.4547 +0.5294419 -0.2290613 +/-0.000057 Node 120.6388 -0.8052024 +0.1674654 e 0.997745 Incl. 108.3098 -0.2670962 -0.9588985An 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 2010 01 24 08 56.52 -63 24.0 3.666 3.911 97.0 14.5 17.7 2010 01 29 08 44.12 -62 45.1 3.684 3.963 99.2 14.2 17.8 2010 02 03 08 32.45 -61 56.0 3.706 4.014 101.1 13.9 17.9 2010 02 08 08 21.70 -60 57.4 3.731 4.065 102.8 13.7 18.0 2010 02 13 08 12.02 -59 50.4 3.760 4.116 104.3 13.4 18.0 2010 02 18 08 03.49 -58 36.0 3.794 4.167 105.4 13.2 18.1 2010 02 23 07 56.13 -57 15.7 3.833 4.218 106.2 13.0 18.2 2010 02 28 07 49.91 -55 50.8 3.877 4.268 106.7 12.8 18.2 2010 03 05 07 44.78 -54 22.5 3.925 4.319 106.9 12.7 18.3 2010 03 10 07 40.65 -52 52.1 3.979 4.369 106.7 12.6 18.4 2010 03 15 07 37.47 -51 20.5 4.038 4.419 106.1 12.5 18.5 2010 03 20 07 35.13 -49 48.8 4.101 4.468 105.3 12.4 18.6 2010 03 25 07 33.56 -48 18.0 4.169 4.518 104.2 12.4 18.6 2010 03 30 07 32.68 -46 48.8 4.242 4.567 102.8 12.3 18.7 2010 04 04 07 32.40 -45 21.8 4.318 4.616 101.1 12.3 18.8 2010 04 09 07 32.67 -43 57.5 4.398 4.665 99.2 12.2 18.9 2010 04 14 07 33.41 -42 36.5 4.482 4.714 97.2 12.2 19.0 2010 04 19 07 34.58 -41 19.0 4.569 4.763 95.0 12.1 19.1 2010 04 24 07 36.12 -40 05.3 4.658 4.811 92.7 12.1 19.2 2010 04 29 07 37.99 -38 55.7 4.750 4.859 90.2 12.0 19.2 2010 05 04 07 40.14 -37 50.2 4.843 4.907 87.7 11.8 19.3 2010 05 09 07 42.53 -36 48.9 4.938 4.955 85.2 11.7 19.4 2010 05 14 07 45.14 -35 51.8 5.033 5.003 82.5 11.6 19.5 2010 05 19 07 47.93 -34 59.0 5.129 5.051 79.9 11.4 19.6 2010 05 24 07 50.88 -34 10.4 5.226 5.098 77.2 11.2 19.7 2010 05 29 07 53.96 -33 26.0 5.322 5.146 74.6 10.9 19.7 2010 06 03 07 57.15 -32 45.7 5.417 5.193 71.9 10.7 19.8 2010 06 08 08 00.43 -32 09.3 5.511 5.240 69.3 10.4 19.9 2010 06 13 08 03.78 -31 36.7 5.604 5.287 66.8 10.2 20.0 2010 06 18 08 07.19 -31 08.0 5.695 5.333 64.3 9.9 20.0 2010 06 23 08 10.63 -30 42.8 5.784 5.380 61.9 9.6 20.1 2010 06 28 08 14.10 -30 21.2 5.870 5.426 59.5 9.3 20.2 2010 07 03 08 17.57 -30 02.9 5.954 5.472 57.3 9.0 20.3 2010 07 08 08 21.04 -29 47.9 6.035 5.519 55.2 8.7 20.3 2010 07 13 08 24.50 -29 36.0 6.113 5.564 53.2 8.4 20.4 2010 07 18 08 27.93 -29 27.2 6.187 5.610 51.4 8.1 20.4 2010 07 23 08 31.32 -29 21.2 6.258 5.656 49.8 7.9 20.5 2010 07 28 08 34.65 -29 17.9 6.325 5.702 48.4 7.7 20.6 2010 08 02 08 37.93 -29 17.3 6.388 5.747 47.2 7.4 20.6 2010 08 07 08 41.13 -29 19.2 6.446 5.792 46.3 7.3 20.7 2010 08 12 08 44.25 -29 23.5 6.501 5.837 45.6 7.1 20.7 2010 08 17 08 47.27 -29 30.0 6.551 5.882 45.2 7.0 20.8 2010 08 22 08 50.19 -29 38.8 6.597 5.927 45.2 7.0 20.8 2010 08 27 08 52.99 -29 49.5 6.638 5.972 45.4 6.9 20.9 2010 09 01 08 55.66 -30 02.2 6.675 6.016 45.9 6.9 20.9 2010 09 06 08 58.20 -30 16.6 6.707 6.061 46.7 7.0 21.0 2010 09 11 09 00.58 -30 32.8 6.735 6.105 47.9 7.0 21.0 2010 09 16 09 02.80 -30 50.5 6.758 6.150 49.3 7.1 21.0 2010 09 21 09 04.84 -31 09.6 6.777 6.194 50.9 7.2 21.1 2010 09 26 09 06.69 -31 29.9 6.792 6.238 52.8 7.4 21.1 2010 10 01 09 08.35 -31 51.4 6.803 6.281 54.9 7.5 21.1 2010 10 06 09 09.79 -32 13.8 6.810 6.325 57.3 7.6 21.2 2010 10 11 09 11.00 -32 37.1 6.813 6.369 59.8 7.8 21.2 2010 10 16 09 11.97 -33 01.0 6.812 6.412 62.4 7.9 21.2 2010 10 21 09 12.69 -33 25.3 6.809 6.456 65.3 8.1 21.3 2010 10 26 09 13.14 -33 49.9 6.802 6.499 68.2 8.2 21.3 2010 10 31 09 13.32 -34 14.5 6.793 6.542 71.3 8.3 21.3 2010 11 05 09 13.21 -34 38.9 6.782 6.585 74.4 8.3 21.3 2010 11 10 09 12.80 -35 02.8 6.769 6.628 77.7 8.4 21.4 2010 11 15 09 12.09 -35 26.1 6.754 6.671 81.0 8.4 21.4 2010 11 20 09 11.07 -35 48.3 6.738 6.714 84.4 8.4 21.4 2010 11 25 09 09.73 -36 09.3 6.722 6.756 87.8 8.4 21.4 2010 11 30 09 08.09 -36 28.8 6.706 6.799 91.2 8.3 21.5 2010 12 05 09 06.14 -36 46.4 6.690 6.841 94.7 8.3 21.5 2010 12 10 09 03.89 -37 01.9 6.675 6.883 98.1 8.1 21.5 2010 12 15 09 01.35 -37 14.9 6.662 6.926 101.5 8.0 21.5 2010 12 20 08 58.56 -37 25.1 6.651 6.968 104.8 7.8 21.5 2010 12 25 08 55.52 -37 32.4 6.642 7.010 108.0 7.7 21.6 2010 12 30 08 52.27 -37 36.6 6.637 7.051 111.2 7.5 21.6 2011 01 04 08 48.83 -37 37.2 6.635 7.093 114.1 7.3 21.6 2011 01 09 08 45.25 -37 34.4 6.636 7.135 116.9 7.1 21.6 2011 01 14 08 41.58 -37 27.8 6.642 7.176 119.4 6.9 21.7 2011 01 19 08 37.84 -37 17.5 6.653 7.218 121.6 6.7 21.7 2011 01 24 08 34.10 -37 03.6 6.669 7.259 123.5 6.5 21.7 2011 01 29 08 30.38 -36 46.0 6.691 7.301 125.0 6.3 21.8 2011 02 03 08 26.74 -36 25.0 6.718 7.342 126.1 6.2 21.8 2011 02 08 08 23.22 -36 00.7 6.750 7.383 126.8 6.1 21.8 2011 02 13 08 19.85 -35 33.3 6.789 7.424 126.9 6.1 21.9 2011 02 18 08 16.67 -35 03.2 6.833 7.465 126.6 6.1 21.9 2011 02 23 08 13.71 -34 30.8 6.883 7.505 125.9 6.1 21.9 2011 02 28 08 10.99 -33 56.2 6.938 7.546 124.7 6.2 22.0