52P/Harrington-Abell (1999)

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Updated on June 12, 1999

Profile Pictures

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 318 observations 1975 to 1999, including 9 Planets, Moon and 5 minor planets perturbations and non-gravitational effect of style II. The mean residual is +/- 0.71 arc seconds. Epoch = 1999 Jan = 2451200.5 T = 1999 Jan. 27.87697 +/- 0.00058 (m.e.) TT Peri. = 138.90063 +/- 0.00025 Node = 337.28741 +/- 0.00008 (2000.0) Incl. = 10.21847 +/- 0.00001 q = 1.7559831 +/- 0.0000015 AU e = 0.5429107 +/- 0.0000004 a = 3.8416632 +/- 0.0000013 AU n = 0.13089563 +/- 0.00000006 P = 7.530 +/- 0.0000037 years A1 = +0.320 +/- 0.021 A2 = +0.00563 +/- 0.00039

Finding Charts

Magnitudes Graph m1 = 19.5 + 5 log d - 25 log r [ ,-100] ( - 1998 Oct. 19) m1 = 7.4 + 5 log d + 15.0 log r [-100, 0] (1998 Oct. 19 - 1999 Jan. 27) m1 = 5.5 + 5 log d + 25.0 log r [ 0, 55] (1999 Jan. 27 - 1999 Mar. 23) m1 = 8.0 + 5 log d + 25 log r [ 55, ] (1999 Mar. 23 - )

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.