C/1998 U5 ( LINEAR )

Japanese version Home page

Updated on September 15, 1999

Profile Discovery Date October 30, 1998 Magnitude 14.0 mag Discoverer Lincoln Laboratory Near-Earth Asteroid Research project Pictures

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 358 observations 1998 Oct. 30 to 1999 May 24, perturbations by 9 Planets, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.68 arc seconds. Epoch = 1998 Dec. 13.0 TT JDT = 2451160.5 T = 1998 Dec. 21.76008 +/- 0.00018 (m.e.) TT Peri. = 51.13442 +/- 0.00009 Node = 66.65075 +/- 0.00011 (2000.0) Incl. = 131.76490 +/- 0.00006 q = 1.2364519 +/- 0.0000009 AU e = 0.9879752 +/- 0.0000075 1/a = +0.0097253 +/- 0.0000060 1/AU ( P = 1043 years ) orig. 1/a = +0.010054 fut. 1/a = +0.009752

Finding Charts

Magnitudes Graph m1 = -1.0 + 5 log d + 86 log r [ ,-35] ( - 1998 Nov. 16) m1 = 8.7 + 5 log d + 10.0 log r [-35, 50] (1998 Nov. 16 - 1999 Feb. 9) m1 = 10.7 + 5 log d + 10.0 log r [ 50, ] (1999 Feb. 9 - )

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.