111P/Helin-Roman-Crockett (1996)

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Updated on March 26, 1999

Profile

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 113 observations 1989 to 1998, perturbations by 9 Plantes, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.86 arc seconds. Epoch = 1996 Nov. 13.0 TT JDT = 2450400.5 T = 1996 Oct. 31.78429 +/- 0.00108 (m.e.) TT Peri. = 10.13264 +/- 0.00040 Node = 91.98905 +/- 0.00036 (2000.0) Incl. = 4.23107 +/- 0.00003 q = 3.4896106 +/- 0.0000012 AU e = 0.1387105 +/- 0.0000003 a = 4.0516115 +/- 0.0000005 AU n = 0.12085438 +/- 0.00000002 P = 8.155 +/- 0.0000015 years

Finding Charts 1995 Aug. 1 - 1998 Apr. 27

Magnitudes Graph m1 = 7.0 + 5 log d + 20.0 log r

The orbital elements are calculated by Kenji Muraoka. The charts are made with StellaNavigator Ver.2.0 for Windows (AstroArts / ASCII). The magnitudes graphs are made with Comet for Windows.