C/1998 M4 ( LINEAR )

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Updated on March 26, 1999

Profile Discovery Date June 25, 1998 Magnitude 17.5 mag Discoverer Lincoln Laboratory Near-Earth Asteroid Research project

Orbital Elements The following improved orbital elements by Kenji Muraoka are from 115 observations 1998 June 25 to Sept. 4, perturbations by 9 Planets, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.70 arc seconds. Epoch = 1997 Dec. 18.0 TT JDT = 2450800.5 T = 1997 Dec. 10.29421 +/- 0.08230 (m.e.) TT Peri. = 106.31401 +/- 0.02029 Node = 92.90047 +/- 0.02521 (2000.0) Incl. = 154.58216 +/- 0.01235 q = 2.6007208 +/- 0.0004488 AU e = 0.9986194 +/- 0.0007039 1/a = +0.0005309 +/- 0.0002707 1/AU ( P = 81758 years )

Finding Charts

Magnitudes Graph m1 = 8.0 + 5 log d + 10.0 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.