C/1999 L3 ( LINEAR )

Japanese version Home page

Updated on May 3, 2000

Profile Discovery Date June 9, 1999 Magnitude 18.3 mag Discoverer Lincoln Laboratory Near-Earth Asteroid Research project Pictures

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 105 observations 1999 June 9 to 2000 Jan. 18, perturbations by 9 Planets, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.54 arc seconds. Epoch = 2000 Jan = 2451560.5 T = 2000 Jan. 4.90822 +/- 0.00033 (m.e.) TT Peri. = 353.29761 +/- 0.00039 Node = 140.16085 +/- 0.00045 (2000.0) Incl. = 166.09933 +/- 0.00008 q = 1.9889094 +/- 0.0000059 AU e = 0.9743066 +/- 0.0000181 1/a = +0.0129184 +/- 0.0000091 1/AU ( P = 681 years )

Finding Charts

Magnitudes Graph m1 = 6.0 + 5 log d + 19.0 log r [ , 0] ( - 2000 Jan. 4) m1 = 61 + 5 log d - 165 log r [ 0,30] (2000 Jan. 4 - 2000 Feb. 3) m1 = -27 + 5 log d + 125 log r [30,55] (2000 Feb. 3 - 2000 Feb. 28) m1 = 5.5 + 5 log d + 25 log r [55, ] (2000 Feb. 28 - ) * Gray curve is: m1 = 6.0 + 5 log d + 19.0 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.