143P/Kowal-Mrkos (2000)

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Updated on October 21, 2004

Profile Designation 143P/2000 ET90 Rediscovery Date March 9, 2000 Magnitude 18.9 mag Rediscoverer Lincoln Laboratory Near-Earth Asteroid Research project

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 69 observations 1984 to 2000, perturbations by 9 Plantes, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.67 arc seconds. Epoch = 2000 Jun = 2451720.5 T = 2000 July 1.78795 +/- 0.00166 (m.e.) TT Peri. = 320.58931 +/- 0.00095 Node = 245.49591 +/- 0.00158 (2000.0) Incl. = 4.68385 +/- 0.00012 q = 2.5468225 +/- 0.0000132 AU e = 0.4090186 +/- 0.0000031 a = 4.3094799 +/- 0.0000074 AU n = 0.11017087 +/- 0.00000028 P = 8.946 +/- 0.0000231 years

Finding Charts

Magnitudes Graph H = 13.6 G = 0.15

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.