C/2007 U1 (LINEAR)
Orbital Elements
The following orbital elements are taken from MPC 66921:C/2007 U1 (LINEAR) Epoch 2008 Aug. 2.0 TT = JDT 2454680.5 T 2008 Aug. 7.0524 TT MPC q 3.329192 (2000.0) P Q z -0.000438 Peri. 0.9281 +0.6536188 +0.6991462 +/-0.000001 Node 50.0433 +0.6919139 -0.7071664 e 1.001458 Incl. 157.7870 +0.3066556 +0.1054052 From 773 observations 2007 Oct. 19-2009 Aug. 26, mean residual 0".6.Elements are also available for the current standard epoch:
C/2007 U1 (LINEAR) Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 T 2008 Aug. 7.1864 TT MPC q 3.331797 (2000.0) P Q z -0.000343 Peri. 1.1232 +0.6541815 +0.6984559 +/-0.000001 Node 50.1810 +0.6909471 -0.7079414 e 1.001143 Incl. 157.8021 +0.3076339 +0.1047775An 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 m2WARNING! 2010 01 24 21 22.56 +04 41.7 6.641 5.790 28.0 4.6 20.7 2010 01 29 21 24.13 +04 46.5 6.703 5.823 24.8 4.1 20.8 2010 02 03 21 25.72 +04 52.6 6.758 5.856 22.1 3.6 20.8 2010 02 08 21 27.31 +05 00.0 6.806 5.889 20.1 3.3 20.9 2010 02 13 21 28.88 +05 08.6 6.847 5.922 19.1 3.1 20.9 2010 02 18 21 30.42 +05 18.4 6.880 5.955 19.1 3.1 20.9 2010 02 23 21 31.91 +05 29.1 6.907 5.989 20.2 3.3 21.0 2010 02 28 21 33.33 +05 40.7 6.927 6.022 22.2 3.6 21.0 2010 03 05 21 34.67 +05 53.1 6.940 6.055 24.9 3.9 21.0 2010 03 10 21 35.92 +06 06.2 6.947 6.088 28.0 4.4 21.1 2010 03 15 21 37.06 +06 20.0 6.947 6.121 31.5 4.9 21.1 2010 03 20 21 38.08 +06 34.2 6.940 6.154 35.3 5.4 21.1 2010 03 25 21 38.96 +06 48.9 6.928 6.188 39.2 5.9 21.1 2010 03 30 21 39.69 +07 03.8 6.910 6.221 43.3 6.3 21.1 2010 04 04 21 40.26 +07 18.9 6.886 6.254 47.5 6.8 21.2 2010 04 09 21 40.64 +07 34.1 6.857 6.287 51.8 7.2 21.2 2010 04 14 21 40.84 +07 49.3 6.824 6.321 56.2 7.6 21.2 2010 04 19 21 40.83 +08 04.3 6.787 6.354 60.6 7.9 21.2 2010 04 24 21 40.61 +08 19.0 6.746 6.387 65.1 8.2 21.2 2010 04 29 21 40.15 +08 33.3 6.702 6.421 69.6 8.5 21.2 2010 05 04 21 39.46 +08 47.0 6.655 6.454 74.2 8.6 21.2 2010 05 09 21 38.52 +09 00.1 6.606 6.487 78.9 8.8 21.2 2010 05 14 21 37.33 +09 12.3 6.556 6.521 83.6 8.9 21.2 2010 05 19 21 35.87 +09 23.5 6.505 6.554 88.3 8.9 21.2 2010 05 24 21 34.14 +09 33.6 6.455 6.587 93.1 8.8 21.2 2010 05 29 21 32.14 +09 42.4 6.405 6.621 97.9 8.7 21.2 2010 06 03 21 29.87 +09 49.8 6.356 6.654 102.7 8.5 21.2 2010 06 08 21 27.33 +09 55.5 6.310 6.687 107.6 8.3 21.3 2010 06 13 21 24.53 +09 59.5 6.266 6.721 112.5 8.0 21.3 2010 06 18 21 21.48 +10 01.6 6.226 6.754 117.4 7.7 21.3 2010 06 23 21 18.19 +10 01.7 6.190 6.787 122.3 7.3 21.3 2010 06 28 21 14.68 +09 59.7 6.159 6.820 127.1 6.8 21.3 2010 07 03 21 10.98 +09 55.5 6.134 6.854 131.8 6.3 21.3 2010 07 08 21 07.10 +09 49.1 6.115 6.887 136.4 5.8 21.3 2010 07 13 21 03.08 +09 40.4 6.103 6.920 140.8 5.3 21.3 2010 07 18 20 58.96 +09 29.4 6.098 6.954 144.8 4.8 21.3 2010 07 23 20 54.76 +09 16.2 6.101 6.987 148.4 4.4 21.4 2010 07 28 20 50.52 +09 00.9 6.112 7.020 151.4 4.0 21.4 2010 08 02 20 46.29 +08 43.6 6.131 7.054 153.4 3.7 21.4 2010 08 07 20 42.10 +08 24.5 6.159 7.087 154.3 3.6 21.5 2010 08 12 20 37.98 +08 03.8 6.196 7.120 154.0 3.6 21.5 2010 08 17 20 33.98 +07 41.6 6.240 7.153 152.4 3.8 21.5 2010 08 22 20 30.13 +07 18.2 6.294 7.187 149.9 4.0 21.6 2010 08 27 20 26.45 +06 53.9 6.355 7.220 146.6 4.4 21.6 2010 09 01 20 22.98 +06 28.9 6.424 7.253 142.8 4.8 21.6 2010 09 06 20 19.73 +06 03.5 6.500 7.286 138.5 5.3 21.7 2010 09 11 20 16.73 +05 37.8 6.583 7.319 134.1 5.7 21.7 2010 09 16 20 13.99 +05 12.3 6.673 7.353 129.4 6.1 21.8 2010 09 21 20 11.51 +04 47.0 6.768 7.386 124.7 6.4 21.8 2010 09 26 20 09.31 +04 22.1 6.868 7.419 119.9 6.7 21.9 2010 10 01 20 07.38 +03 57.9 6.973 7.452 115.0 7.0 21.9 2010 10 06 20 05.73 +03 34.5 7.081 7.485 110.2 7.2 22.0 2010 10 11 20 04.36 +03 12.0 7.193 7.518 105.3 7.4 22.0 2010 10 16 20 03.25 +02 50.5 7.307 7.551 100.4 7.5 22.1 2010 10 21 20 02.40 +02 30.3 7.422 7.584 95.6 7.5 22.2 2010 10 26 20 01.79 +02 11.2 7.539 7.617 90.8 7.5 22.2 2010 10 31 20 01.42 +01 53.4 7.655 7.650 86.0 7.4 22.3 2010 11 05 20 01.28 +01 37.0 7.772 7.683 81.2 7.3 22.3 2010 11 10 20 01.35 +01 22.0 7.887 7.716 76.5 7.2 22.4 2010 11 15 20 01.62 +01 08.3 8.000 7.749 71.9 7.0 22.4 2010 11 20 20 02.07 +00 56.0 8.111 7.782 67.2 6.7 22.5 2010 11 25 20 02.68 +00 45.2 8.219 7.815 62.7 6.4 22.5 2010 11 30 20 03.45 +00 35.7 8.324 7.848 58.2 6.1 22.5 2010 12 05 20 04.36 +00 27.7 8.424 7.881 53.7 5.8 22.6 2010 12 10 20 05.40 +00 21.0 8.521 7.914 49.3 5.4 22.6 2010 12 15 20 06.54 +00 15.6 8.612 7.947 45.0 5.0 22.7 2010 12 20 20 07.78 +00 11.5 8.698 7.980 40.8 4.6 22.7 2010 12 25 20 09.09 +00 08.8 8.779 8.013 36.8 4.2 22.8 2010 12 30 20 10.48 +00 07.2 8.853 8.046 32.9 3.8 22.8 2011 01 04 20 11.91 +00 06.8 8.922 8.078 29.3 3.4 22.8 2011 01 09 20 13.38 +00 07.6 8.984 8.111 26.0 3.0 22.9 2011 01 14 20 14.87 +00 09.5 9.039 8.144 23.2 2.7 22.9 2011 01 19 20 16.37 +00 12.4 9.088 8.177 21.0 2.5 22.9 2011 01 24 20 17.87 +00 16.2 9.129 8.209 19.7 2.3 22.9 2011 01 29 20 19.35 +00 21.1 9.164 8.242 19.4 2.3 23.0 2011 02 03 20 20.80 +00 26.7 9.192 8.275 20.3 2.4 23.0 2011 02 08 20 22.21 +00 33.2 9.213 8.307 22.0 2.6 23.0 2011 02 13 20 23.57 +00 40.5 9.228 8.340 24.6 2.8 23.0 2011 02 18 20 24.86 +00 48.4 9.235 8.373 27.7 3.1 23.1 2011 02 23 20 26.07 +00 56.9 9.237 8.405 31.1 3.5 23.1 2011 02 28 20 27.19 +01 05.9 9.231 8.438 34.9 3.8 23.1This 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.
