MPC
CBAT
ICQ
P/2007 H1 (McNaught) T 2007 Aug. 17.2346 TT MPC q 2.282314 (2000.0) P Q n 0.1396184 Peri. 202.4726 +0.9690554 +0.2158277 a 3.679941 Node 144.3871 -0.1833966 +0.9543333 e 0.379796 Incl. 11.8716 -0.1652192 +0.2065586 P 7.06 From 61 observations 2007 Apr. 17-June 20.An 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 2007 06 19 23 35.43 -03 22.7 2.011 2.320 94.2 25.9 15.2 2007 06 24 23 41.66 -03 09.6 1.950 2.314 97.5 25.8 15.1 2007 06 29 23 47.57 -03 00.2 1.890 2.308 100.8 25.6 15.0 2007 07 04 23 53.12 -02 54.8 1.831 2.303 104.3 25.3 14.9 2007 07 09 23 58.29 -02 53.7 1.773 2.299 107.9 24.9 14.9 2007 07 14 00 03.02 -02 57.3 1.718 2.295 111.6 24.3 14.8 2007 07 19 00 07.29 -03 05.8 1.664 2.292 115.4 23.6 14.7 2007 07 24 00 11.06 -03 19.5 1.612 2.289 119.4 22.8 14.6 2007 07 29 00 14.29 -03 38.5 1.564 2.286 123.5 21.7 14.6 2007 08 03 00 16.95 -04 03.0 1.518 2.285 127.7 20.6 14.5 2007 08 08 00 19.02 -04 32.8 1.475 2.283 132.2 19.2 14.4 2007 08 13 00 20.46 -05 08.0 1.437 2.283 136.7 17.7 14.4 2007 08 18 00 21.27 -05 48.1 1.402 2.282 141.4 16.1 14.3 2007 08 23 00 21.44 -06 32.6 1.372 2.283 146.2 14.3 14.3 2007 08 28 00 21.02 -07 20.7 1.346 2.284 151.1 12.4 14.2 2007 09 02 00 20.02 -08 11.5 1.326 2.285 155.9 10.4 14.2 2007 09 07 00 18.51 -09 03.8 1.312 2.287 160.5 8.4 14.2 2007 09 12 00 16.57 -09 56.5 1.303 2.289 164.6 6.7 14.2 2007 09 17 00 14.31 -10 47.9 1.301 2.292 167.5 5.4 14.2 2007 09 22 00 11.83 -11 36.7 1.304 2.296 168.2 5.1 14.2 2007 09 27 00 09.29 -12 21.5 1.314 2.300 166.3 5.9 14.2 2007 10 02 00 06.80 -13 01.3 1.330 2.305 162.6 7.4 14.2 2007 10 07 00 04.48 -13 35.1 1.352 2.310 158.2 9.2 14.3 2007 10 12 00 02.45 -14 02.2 1.379 2.315 153.4 11.1 14.3 2007 10 17 00 00.82 -14 22.3 1.412 2.321 148.6 12.9 14.4 2007 10 22 23 59.68 -14 35.1 1.450 2.328 143.7 14.7 14.5 2007 10 27 23 59.07 -14 40.9 1.493 2.335 138.9 16.2 14.6 2007 11 01 23 59.02 -14 39.8 1.540 2.343 134.2 17.7 14.6 2007 11 06 23 59.56 -14 32.3 1.591 2.351 129.6 19.0 14.7 2007 11 11 00 00.70 -14 18.8 1.646 2.359 125.2 20.1 14.8 2007 11 16 00 02.41 -13 59.7 1.704 2.368 120.8 21.0 14.9 2007 11 21 00 04.70 -13 35.6 1.764 2.377 116.7 21.8 15.0 2007 11 26 00 07.51 -13 07.0 1.827 2.387 112.6 22.4 15.1 2007 12 01 00 10.83 -12 34.5 1.893 2.397 108.6 22.9 15.2 2007 12 06 00 14.61 -11 58.4 1.960 2.408 104.8 23.3 15.3 2007 12 11 00 18.82 -11 19.1 2.029 2.419 101.0 23.6 15.4 2007 12 16 00 23.43 -10 37.2 2.099 2.430 97.4 23.7 15.5 2007 12 21 00 28.41 -09 52.8 2.170 2.442 93.9 23.7 15.6 2007 12 26 00 33.72 -09 06.5 2.242 2.454 90.4 23.6 15.7 2007 12 31 00 39.32 -08 18.6 2.315 2.467 87.0 23.5 15.7 2008 01 05 00 45.20 -07 29.2 2.388 2.479 83.6 23.2 15.8 2008 01 10 00 51.33 -06 38.7 2.461 2.492 80.4 22.9 15.9 2008 01 15 00 57.69 -05 47.3 2.534 2.506 77.2 22.5 16.0 2008 01 20 01 04.26 -04 55.3 2.607 2.520 74.0 22.0 16.1 2008 01 25 01 11.00 -04 02.9 2.679 2.534 70.9 21.5 16.2 2008 01 30 01 17.91 -03 10.3 2.751 2.548 67.8 21.0 16.3 2008 02 04 01 24.98 -02 17.7 2.822 2.562 64.8 20.4 16.3 2008 02 09 01 32.18 -01 25.2 2.892 2.577 61.8 19.7 16.4 2008 02 14 01 39.51 -00 33.0 2.962 2.592 58.8 19.0 16.5 2008 02 19 01 46.96 +00 18.6 3.029 2.608 55.9 18.3 16.6 2008 02 24 01 54.50 +01 09.6 3.096 2.623 53.0 17.5 16.6 2008 02 29 02 02.14 +01 59.9 3.161 2.639 50.2 16.8 16.7 2008 03 05 02 09.86 +02 49.2 3.225 2.655 47.3 15.9 16.8 2008 03 10 02 17.67 +03 37.5 3.286 2.671 44.5 15.1 16.9 2008 03 15 02 25.54 +04 24.6 3.346 2.687 41.8 14.3 16.9 2008 03 20 02 33.46 +05 10.5 3.404 2.704 39.0 13.4 17.0 2008 03 25 02 41.44 +05 55.0 3.460 2.720 36.3 12.5 17.0 2008 03 30 02 49.47 +06 38.0 3.513 2.737 33.6 11.6 17.1 2008 04 04 02 57.53 +07 19.6 3.564 2.754 30.9 10.7 17.2 2008 07 23 05 50.14 +14 41.1 3.942 3.150 33.8 10.3 18.0