128P/Shoemaker-Holt
Orbital Elements
The following orbital elements are taken from MPC 51822:128P/Shoemaker-Holt Epoch 2007 June 29.0 TT = JDT 2454280.5 T 2007 June 13.6505 TT MPC q 3.068926 (2000.0) P Q n 0.1028238 Peri. 210.4481 +0.4255220 -0.9039293 a 4.512393 Node 214.4205 +0.8448307 +0.4138078 e 0.319889 Incl. 4.3554 +0.3243333 +0.1080504 P 9.59 From 282 observations 1987-1999, mean residual 0".8.Elements are also available for the current standard epoch:
128P/Shoemaker-Holt Epoch 2009 June 18.0 TT = JDT 2455000.5 T 2007 June 13.3448 TT MPC q 3.066600 (2000.0) P Q n 0.1028573 Peri. 210.3766 +0.4273148 -0.9030848 a 4.511413 Node 214.3784 +0.8440292 +0.4154777 e 0.320257 Incl. 4.3566 +0.3240629 +0.1087016 P 9.58An 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 10 55.08 +03 58.0 4.538 4.586 86.3 12.8 18.4 21.3 2009 06 13 10 57.39 +03 48.4 4.627 4.599 82.1 12.6 18.5 21.4 2009 06 18 10 59.93 +03 37.1 4.714 4.611 78.0 12.4 18.5 21.4 2009 06 23 11 02.68 +03 24.3 4.801 4.624 74.0 12.2 18.6 21.5 2009 06 28 11 05.63 +03 09.9 4.886 4.637 70.0 11.9 18.6 21.5 2009 07 03 11 08.76 +02 54.2 4.969 4.649 66.0 11.5 18.7 21.5 2009 07 08 11 12.05 +02 37.1 5.050 4.662 62.1 11.1 18.7 21.6 2009 07 13 11 15.49 +02 18.9 5.128 4.674 58.3 10.7 18.7 21.6 2009 07 18 11 19.07 +01 59.5 5.204 4.687 54.5 10.2 18.8 21.6 2009 07 23 11 22.78 +01 39.1 5.277 4.699 50.7 9.6 18.8 21.6 2009 07 28 11 26.60 +01 17.7 5.346 4.711 46.9 9.1 18.9 21.6 2009 08 02 11 30.53 +00 55.4 5.412 4.724 43.2 8.5 18.9 21.6 2009 08 07 11 34.54 +00 32.3 5.474 4.736 39.5 7.8 18.9 21.6 2009 08 12 11 38.63 +00 08.4 5.533 4.748 35.8 7.2 19.0 21.6 2009 08 17 11 42.80 -00 16.0 5.587 4.760 32.1 6.5 19.0 21.6 2009 08 22 11 47.03 -00 41.1 5.637 4.772 28.4 5.8 19.0 21.6 2009 08 27 11 51.31 -01 06.7 5.683 4.784 24.8 5.1 19.1 21.6 2009 09 01 11 55.63 -01 32.7 5.724 4.796 21.1 4.3 19.1 21.6 2009 09 06 11 59.98 -01 59.0 5.760 4.808 17.5 3.6 19.1 21.6 2009 09 11 12 04.37 -02 25.6 5.792 4.820 13.8 2.9 19.1 21.5 2009 09 16 12 08.77 -02 52.4 5.818 4.832 10.2 2.1 19.2 21.5 2009 09 21 12 13.18 -03 19.3 5.840 4.844 6.6 1.4 19.2 21.4 2009 09 26 12 17.59 -03 46.3 5.856 4.855 3.1 0.6 19.2 21.4 2009 10 01 12 21.99 -04 13.3 5.868 4.867 2.0 0.4 19.2 21.4 2009 10 06 12 26.38 -04 40.2 5.874 4.879 5.1 1.0 19.2 21.4 2009 10 11 12 30.74 -05 06.9 5.875 4.890 8.8 1.8 19.2 21.5 2009 10 16 12 35.06 -05 33.4 5.870 4.902 12.5 2.5 19.2 21.6 2009 10 21 12 39.35 -05 59.6 5.861 4.913 16.3 3.3 19.3 21.6 2009 10 26 12 43.58 -06 25.4 5.846 4.925 20.1 4.0 19.3 21.7 2009 10 31 12 47.74 -06 50.7 5.827 4.936 24.0 4.7 19.3 21.7 2009 11 05 12 51.83 -07 15.5 5.802 4.947 27.9 5.4 19.3 21.7 2009 11 10 12 55.84 -07 39.7 5.773 4.959 31.8 6.0 19.3 21.8 2009 11 15 12 59.75 -08 03.2 5.738 4.970 35.8 6.7 19.3 21.8 2009 11 20 13 03.54 -08 26.0 5.700 4.981 39.8 7.3 19.3 21.8 2009 11 25 13 07.22 -08 47.9 5.656 4.992 43.9 7.9 19.2 21.8 2009 11 30 13 10.76 -09 08.9 5.609 5.003 48.0 8.4 19.2 21.8 2009 12 05 13 14.15 -09 28.9 5.558 5.014 52.2 8.9 19.2 21.8 2009 12 10 13 17.38 -09 47.9 5.503 5.025 56.4 9.4 19.2 21.8 2009 12 15 13 20.43 -10 05.7 5.445 5.036 60.7 9.8 19.2 21.8 2009 12 20 13 23.29 -10 22.3 5.383 5.047 65.0 10.2 19.2 21.8 2009 12 25 13 25.94 -10 37.6 5.319 5.057 69.4 10.5 19.2 21.8 2009 12 30 13 28.36 -10 51.5 5.253 5.068 73.8 10.7 19.2 21.8 2010 01 04 13 30.55 -11 04.0 5.185 5.079 78.3 10.9 19.1 21.8 2010 01 09 13 32.48 -11 14.9 5.116 5.089 82.9 11.1 19.1 21.8 2010 01 14 13 34.14 -11 24.3 5.046 5.100 87.6 11.1 19.1 21.7 2010 01 19 13 35.52 -11 31.9 4.975 5.110 92.3 11.1 19.1 21.7 2010 01 24 13 36.60 -11 37.8 4.905 5.121 97.1 11.0 19.0 21.7 2010 01 29 13 37.37 -11 41.9 4.835 5.131 102.0 10.8 19.0 21.7 2010 02 03 13 37.83 -11 44.2 4.767 5.141 107.0 10.6 19.0 21.6 2010 02 08 13 37.97 -11 44.6 4.700 5.151 112.0 10.2 19.0 21.6 2010 02 13 13 37.78 -11 43.1 4.637 5.162 117.1 9.8 19.0 21.5 2010 02 18 13 37.27 -11 39.6 4.576 5.172 122.3 9.3 18.9 21.5 2010 02 23 13 36.45 -11 34.3 4.519 5.182 127.5 8.7 18.9 21.4 2010 02 28 13 35.31 -11 27.0 4.467 5.192 132.9 8.0 18.9 21.4 2010 03 05 13 33.89 -11 17.9 4.420 5.202 138.3 7.3 18.9 21.3 2010 03 10 13 32.19 -11 07.1 4.378 5.212 143.7 6.5 18.9 21.3 2010 03 15 13 30.25 -10 54.6 4.342 5.221 149.2 5.6 18.9 21.2 2010 03 20 13 28.09 -10 40.7 4.313 5.231 154.8 4.7 18.9 21.2 2010 03 25 13 25.75 -10 25.5 4.291 5.241 160.4 3.7 18.9 21.1 2010 03 30 13 23.28 -10 09.3 4.276 5.250 166.0 2.6 18.9 21.0 2010 04 04 13 20.71 -09 52.2 4.269 5.260 171.5 1.6 18.9 21.0 2010 04 09 13 18.09 -09 34.6 4.269 5.269 177.0 0.6 18.9 20.9 2010 04 14 13 15.47 -09 16.8 4.277 5.279 176.9 0.6 18.9 20.9 2010 04 19 13 12.88 -08 58.9 4.293 5.288 171.4 1.6 18.9 21.0 2010 04 24 13 10.38 -08 41.4 4.317 5.298 165.9 2.6 18.9 21.1 2010 04 29 13 08.01 -08 24.5 4.347 5.307 160.4 3.6 18.9 21.2 2010 05 04 13 05.80 -08 08.4 4.385 5.316 155.0 4.6 19.0 21.2 2010 05 09 13 03.78 -07 53.4 4.430 5.325 149.6 5.5 19.0 21.3 2010 05 14 13 01.98 -07 39.6 4.481 5.334 144.2 6.4 19.0 21.4 2010 05 19 13 00.42 -07 27.4 4.538 5.343 139.0 7.1 19.1 21.4 2010 05 24 12 59.13 -07 16.7 4.601 5.352 133.8 7.8 19.1 21.5 2010 05 29 12 58.12 -07 07.7 4.668 5.361 128.7 8.5 19.1 21.6 2010 06 03 12 57.38 -07 00.5 4.740 5.370 123.7 9.0 19.2 21.6 2010 06 08 12 56.93 -06 55.1 4.816 5.378 118.8 9.5 19.2 21.7 2010 06 13 12 56.77 -06 51.5 4.894 5.387 114.0 9.9 19.3 21.7 2010 06 18 12 56.89 -06 49.7 4.976 5.396 109.2 10.2 19.3 21.8 2010 06 23 12 57.29 -06 49.8 5.059 5.404 104.5 10.5 19.3 21.9 2010 06 28 12 57.97 -06 51.6 5.144 5.413 99.9 10.7 19.4 21.9 2010 07 03 12 58.91 -06 55.1 5.230 5.421 95.4 10.8 19.4 21.9 2010 07 08 13 00.10 -07 00.3 5.317 5.430 90.9 10.8 19.5 22.0 2010 07 13 13 01.53 -07 07.0 5.404 5.438 86.5 10.8 19.5 22.0This 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.
