C/1998 U1 ( LINEAR )

Japanese version Home page

Updated on March 26, 1999

Profile Discovery Date October 18, 1998 Magnitude 19.2 mag Discoverer Lincoln Laboratory Near-Earth Asteroid Research project

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 113 observations 1998 Oct. 18 to 1999 Jan. 13, perturbations by 9 Planets, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.76 arc seconds. Epoch = 1998 Apr. 17.0 TT JDT = 2450920.5 T = 1998 May 2.41876 +/- 0.05503 (m.e.) TT Peri. = 124.62945 +/- 0.01046 Node = 210.45528 +/- 0.01228 (2000.0) Incl. = 156.42896 +/- 0.00310 q = 3.9752022 +/- 0.0002207 AU e = 1.0005227 +/- 0.0004884 1/a = -0.0001315 +/- 0.0001229 1/AU

Finding Charts

Magnitudes Graph m1 = 9.5 + 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.