100P/Hartley 1 (1997)

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Updated on February 24, 2002

Profile

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 100 observations 1985 to 1997, perturbations by 9 Plantes, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.78 arc seconds. Epoch = 1997 June 1.0 TT JDT = 2450600.5 T = 1997 May 28.51692 +/- 0.00009 (m.e.) TT Peri. = 178.93279 +/- 0.00004 Node = 38.90298 +/- 0.00006 (2000.0) Incl. = 25.72329 +/- 0.00005 q = 1.8186831 +/- 0.0000032 AU e = 0.4506090 +/- 0.0000008 a = 3.3103621 +/- 0.0000023 AU n = 0.16364051 +/- 0.00000017 P = 6.023 +/- 0.0000063 years

Finding Charts 1996 Nov. 3 - 1997 Dec. 28

Magnitudes Graph m1 = 2.0 + 5 log d + 50.0 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.