P/2004 A1 (LONEOS)
Orbital Elements
The following orbital elements are taken from MPC 60921:P/2004 A1 (LONEOS) Epoch 2004 Aug. 23.0 TT = JDT 2453240.5 T 2004 Aug. 25.8379 TT MPC q 5.462523 (2000.0) P Q n 0.0444220 Peri. 20.4848 -0.8215450 -0.5500840 a 7.895942 Node 125.2459 +0.4942143 -0.8181773 e 0.308186 Incl. 10.5768 +0.2842816 -0.1673125 P 22.2 From 495 observations 2003 Oct. 25-2007 Aug. 7, mean residual 0".7.Elements are also available for the current standard epoch:
P/2004 A1 (LONEOS) Epoch 2009 June 18.0 TT = JDT 2455000.5 T 2004 Sept. 5.3551 TT MPC q 5.489030 (2000.0) P Q n 0.0439066 Peri. 21.9369 -0.8326825 -0.5330382 a 7.957614 Node 124.9777 +0.4769544 -0.8280334 e 0.310217 Incl. 10.5508 +0.2813437 -0.1738707 P 22.4An 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! 2009 06 08 17 17.15 -14 22.2 7.125 8.129 171.0 1.1 19.9 21.0 2009 06 13 17 15.27 -14 22.0 7.134 8.138 170.9 1.1 19.9 21.0 2009 06 18 17 13.41 -14 22.2 7.150 8.147 168.1 1.5 19.9 21.0 2009 06 23 17 11.58 -14 22.9 7.174 8.157 164.1 2.0 19.9 21.1 2009 06 28 17 09.83 -14 24.1 7.205 8.166 159.6 2.5 19.9 21.1 2009 07 03 17 08.15 -14 25.8 7.243 8.175 154.9 3.0 19.9 21.2 2009 07 08 17 06.59 -14 28.0 7.288 8.184 150.0 3.6 19.9 21.2 2009 07 13 17 05.16 -14 30.8 7.339 8.193 145.1 4.1 20.0 21.3 2009 07 18 17 03.87 -14 34.0 7.396 8.202 140.2 4.6 20.0 21.3 2009 07 23 17 02.74 -14 37.8 7.459 8.212 135.3 5.0 20.0 21.4 2009 07 28 17 01.78 -14 42.0 7.526 8.221 130.4 5.4 20.0 21.4 2009 08 02 17 01.01 -14 46.6 7.599 8.230 125.5 5.8 20.1 21.4 2009 08 07 17 00.43 -14 51.7 7.675 8.239 120.7 6.1 20.1 21.5 2009 08 12 17 00.04 -14 57.2 7.756 8.248 115.8 6.3 20.1 21.5 2009 08 17 16 59.86 -15 03.0 7.839 8.257 111.1 6.6 20.1 21.6 2009 08 22 16 59.87 -15 09.2 7.925 8.266 106.3 6.7 20.2 21.6 2009 08 27 17 00.09 -15 15.6 8.012 8.275 101.6 6.9 20.2 21.6 2009 09 01 17 00.52 -15 22.4 8.102 8.284 96.9 6.9 20.2 21.6 2009 09 06 17 01.14 -15 29.3 8.191 8.293 92.3 7.0 20.3 21.7 2009 09 11 17 01.95 -15 36.3 8.282 8.302 87.7 7.0 20.3 21.7 2009 09 16 17 02.95 -15 43.5 8.372 8.311 83.1 6.9 20.3 21.7 2009 09 21 17 04.14 -15 50.8 8.461 8.320 78.5 6.8 20.3 21.7 2009 09 26 17 05.51 -15 58.1 8.549 8.329 74.0 6.6 20.4 21.8 2009 10 01 17 07.04 -16 05.4 8.635 8.338 69.5 6.5 20.4 21.8 2009 10 06 17 08.73 -16 12.6 8.719 8.347 65.1 6.2 20.4 21.8 2009 10 11 17 10.58 -16 19.7 8.800 8.356 60.6 6.0 20.4 21.8 2009 10 16 17 12.56 -16 26.7 8.878 8.364 56.2 5.7 20.5 21.8 2009 10 21 17 14.68 -16 33.5 8.953 8.373 51.8 5.4 20.5 21.8 2009 10 26 17 16.93 -16 40.1 9.023 8.382 47.4 5.0 20.5 21.8 2009 10 31 17 19.29 -16 46.4 9.090 8.391 43.0 4.6 20.5 21.8 2009 11 05 17 21.75 -16 52.5 9.151 8.400 38.7 4.2 20.6 21.8 2009 11 10 17 24.30 -16 58.2 9.208 8.409 34.3 3.8 20.6 21.8 2009 11 15 17 26.93 -17 03.6 9.259 8.417 30.0 3.4 20.6 21.8 2009 11 20 17 29.64 -17 08.6 9.305 8.426 25.7 2.9 20.6 21.8 2009 11 25 17 32.41 -17 13.3 9.346 8.435 21.5 2.5 20.6 21.8 2009 11 30 17 35.23 -17 17.5 9.380 8.444 17.3 2.0 20.6 21.7 2009 12 05 17 38.08 -17 21.3 9.408 8.452 13.3 1.5 20.6 21.7 2009 12 10 17 40.96 -17 24.7 9.431 8.461 9.6 1.1 20.6 21.7 2009 12 15 17 43.86 -17 27.6 9.447 8.470 6.7 0.8 20.7 21.6 2009 12 20 17 46.76 -17 30.1 9.456 8.478 6.0 0.7 20.7 21.6 2009 12 25 17 49.66 -17 32.1 9.460 8.487 8.2 0.9 20.7 21.7 2009 12 30 17 52.54 -17 33.7 9.457 8.496 11.6 1.3 20.7 21.7 2010 01 04 17 55.38 -17 34.9 9.447 8.504 15.6 1.8 20.7 21.7 2010 01 09 17 58.19 -17 35.6 9.432 8.513 19.7 2.2 20.7 21.8 2010 01 14 18 00.95 -17 35.9 9.411 8.522 24.0 2.7 20.7 21.8 2010 01 19 18 03.64 -17 35.8 9.383 8.530 28.3 3.1 20.7 21.8 2010 01 24 18 06.26 -17 35.4 9.350 8.539 32.7 3.6 20.7 21.9 2010 01 29 18 08.79 -17 34.5 9.312 8.547 37.1 4.0 20.7 21.9 2010 02 03 18 11.23 -17 33.4 9.268 8.556 41.5 4.4 20.7 21.9 2010 02 08 18 13.56 -17 31.9 9.220 8.564 46.0 4.8 20.7 21.9 2010 02 13 18 15.78 -17 30.2 9.167 8.573 50.5 5.1 20.6 21.9 2010 02 18 18 17.86 -17 28.3 9.110 8.581 55.0 5.4 20.6 21.9 2010 02 23 18 19.81 -17 26.1 9.049 8.590 59.5 5.7 20.6 21.9 2010 02 28 18 21.61 -17 23.8 8.984 8.598 64.1 5.9 20.6 21.9 2010 03 05 18 23.25 -17 21.4 8.917 8.607 68.7 6.2 20.6 21.9 2010 03 10 18 24.73 -17 18.8 8.847 8.615 73.3 6.3 20.6 21.9 2010 03 15 18 26.03 -17 16.3 8.776 8.623 78.0 6.5 20.6 21.9 2010 03 20 18 27.16 -17 13.7 8.702 8.632 82.7 6.6 20.6 21.9 2010 03 25 18 28.10 -17 11.1 8.628 8.640 87.4 6.6 20.5 21.9 2010 03 30 18 28.84 -17 08.7 8.554 8.649 92.1 6.6 20.5 21.8 2010 04 04 18 29.39 -17 06.3 8.480 8.657 96.9 6.6 20.5 21.8 2010 04 09 18 29.75 -17 04.1 8.407 8.665 101.7 6.5 20.5 21.8 2010 04 14 18 29.90 -17 02.1 8.335 8.673 106.5 6.4 20.5 21.8 2010 04 19 18 29.85 -17 00.3 8.265 8.682 111.4 6.2 20.5 21.8 2010 04 24 18 29.60 -16 58.7 8.198 8.690 116.3 6.0 20.5 21.7 2010 04 29 18 29.15 -16 57.4 8.134 8.698 121.2 5.7 20.4 21.7 2010 05 04 18 28.52 -16 56.4 8.073 8.706 126.2 5.4 20.4 21.7 2010 05 09 18 27.70 -16 55.7 8.017 8.715 131.2 5.0 20.4 21.6 2010 05 14 18 26.71 -16 55.3 7.966 8.723 136.2 4.6 20.4 21.6 2010 05 19 18 25.55 -16 55.2 7.920 8.731 141.2 4.2 20.4 21.6 2010 05 24 18 24.25 -16 55.4 7.879 8.739 146.2 3.7 20.4 21.5 2010 05 29 18 22.82 -16 56.0 7.845 8.747 151.2 3.2 20.4 21.5 2010 06 03 18 21.27 -16 57.0 7.818 8.756 156.2 2.7 20.4 21.5 2010 06 08 18 19.63 -16 58.2 7.797 8.764 161.2 2.1 20.4 21.4 2010 06 13 18 17.91 -16 59.8 7.783 8.772 165.9 1.6 20.4 21.4 2010 06 18 18 16.15 -17 01.7 7.777 8.780 170.3 1.1 20.4 21.3 2010 06 23 18 14.35 -17 03.9 7.778 8.788 173.3 0.8 20.4 21.3 2010 06 28 18 12.54 -17 06.3 7.786 8.796 173.0 0.8 20.4 21.3 2010 07 03 18 10.76 -17 09.1 7.802 8.804 169.7 1.2 20.4 21.4 2010 07 08 18 09.01 -17 12.1 7.825 8.812 165.2 1.7 20.4 21.4 2010 07 13 18 07.32 -17 15.4 7.856 8.820 160.4 2.2 20.4 21.5This 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.
