C/1998 K5 ( LINEAR )

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Updated on March 26, 1999

Profile Discovery Date May 26, 1998 Magnitude 18.0 mag Discoverer Lincoln Laboratory Near-Earth Asteroid Research project Pictures

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 553 observations 1998 May 26 to 1999 Feb. 14, perturbations by 9 Planets, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.60 arc seconds. Epoch = 1998 July 6.0 TT JDT = 2451000.5 T = 1998 July 17.44629 +/- 0.00002 (m.e.) TT Peri. = 99.45875 +/- 0.00014 Node = 211.11919 +/- 0.00014 (2000.0) Incl. = 9.92700 +/- 0.00002 q = 0.9635471 +/- 0.0000001 AU e = 0.9866924 +/- 0.0000040 1/a = +0.0138110 +/- 0.0000041 1/AU ( P = 616 years )

Finding Charts

Magnitudes Graph m1 = 15.5 + 5 log d + 25.0 log r [ , 0] ( - 1998 July 17) m1 = 14.5 + 5 log d - 14.5 log r [ 0,40] (1998 July 17 - 1998 Aug. 26) m1 = 14.0 + 5 log d - 2.5 log r [40,70] (1998 Aug. 26 - 1998 Sept.25) m1 = 12.7 + 5 log d + 5.0 log r [70, ] (1998 Sept.25 - ) * Gray curve is: m1 = 15.5 + 5 log d + 25.0 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.