C/1999 XS87 ( LINEAR )

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Updated on March 5, 2000

Profile Discovery Date December 7, 1999 Magnitude 17.3 mag Discoverer Lincoln Laboratory Near-Earth Asteroid Research project Pictures

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 58 observations 1999 Nov. 4 to 2000 Feb. 5, perturbations by 9 Planets, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.60 arc seconds. Epoch = 1999 Aug. 10.0 TT JDT = 2451400.5 T = 1999 Aug. 6.57420 +/- 0.01000 (m.e.) TT Peri. = 151.33550 +/- 0.00471 Node = 266.73006 +/- 0.00578 (2000.0) Incl. = 14.84286 +/- 0.00191 q = 2.7714038 +/- 0.0015246 AU e = 0.8412226 +/- 0.0000633 a = 17.4546528 +/- 0.0066162 AU n = 0.01351566 +/- 0.00000768 P = 72.923 +/- 0.0414625 years (+/-15.14 days)

Magnitudes Graph m1 = 10.0 + 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.