C/1999 L2 ( LINEAR )

Japanese version Home page

Updated on September 27, 1999

Profile Discovery Date June 11, 1999 Magnitude 18.6 mag Discoverer Lincoln Laboratory Near-Earth Asteroid Research project Pictures

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 88 observations 1999 June 11 to July 21, perturbations by 9 Planets, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.66 arc seconds. Epoch = 1999 Aug. 10.0 TT JDT = 2451400.5 T = 1999 Aug. 4.89040 +/- 0.00235 (m.e.) TT Peri. = 178.71861 +/- 0.00149 Node = 94.28968 +/- 0.00187 (2000.0) Incl. = 43.94232 +/- 0.00239 q = 1.9047574 +/- 0.0000594 AU e = 0.9951432 +/- 0.0001497 1/a = +0.0025498 +/- 0.0000786 1/AU ( P = 7767 years ) orig. 1/a = +0.002215 fut. 1/a = +0.003219

Finding Charts

Magnitudes Graph m1 = 13.5 + 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.