July 6, 2005 08:32:18 UT
Comet P/1998 W2 = 2005 N2 ( Hergenrother )
The following improved orbital elements by Kenji Muraoka, are
from 71 observations 1998 Nov. 21 to 2005 July 5, perturbations
by 8 Plantes, Moon and 3 minor planets were taken into account.
The mean residual is +/- 0.68 arc seconds.
Epoch = 2005 Nov. 6.0 TT JDT = 2453680.5
T = 2005 Nov. 2.48102 +/- 0.00038 (m.e.) TT
Peri. = 13.87834 +/- 0.00025
Node = 356.50303 +/- 0.00008 (2000.0)
Incl. = 21.89410 +/- 0.00005
q = 1.4257731 +/- 0.0000011 AU
e = 0.6075113 +/- 0.0000003
a = 3.6326477 +/- 0.0000011 AU
n゜ = 0.14235383 +/- 0.00000006
P = 6.924 +/- 0.0000031 years
T = 1998 Dec. 5.94533 TT Epoch = 1998 Dec. 13.0 TT
Peri. = 13.88766 e = 0.6084633
Node = 356.50200 (2000.0) a = 3.6272678 AU
Incl. = 21.92955 n゜ = 0.142670650
q = 1.4202084 AU P = 6.908 years
Residuals in seconds of arc
981121 703 0.2+ 1.4+ 981128 402 1.1+ 0.2+ 990113 360 1.0- 0.6-
981121 703 (2.6+ 2.1+) 981128 402 0.3- 0.8- 990113 360 0.5+ 0.0
981122 703 (4.5+ 0.6-) 981128 426 1.7+ 1.0- 990114 693 0.7- 0.2-
981122 703 (4.4+ 0.7-) 981128 426 0.9+ 0.9- 990114 693 0.9- 0.5-
981122 703 0.4+ 0.8+ 981128 426 0.1+ 0.2+ 990114 693 0.5- 0.5-
981123 693 0.1- 0.6+ 981213 693 1.2- 0.1+ 990115 693 0.3+ 1.6-
981123 693 0.7- 0.4+ 981213 693 1.5- 0.3- 990115 693 0.6+ 0.9-
981123 693 0.6- 0.3+ 981216 402 (2.1+ 1.0+) 990115 693 0.3+ 1.1-
981123 693 0.3- 0.6+ 981216 402 0.3+ 0.5- 990213 693 0.1- 1.0+
981123 691 0.0 0.2+ 981216 402 0.9- 0.2+ 990213 693 0.3+ 0.4+
981123 691 0.0 0.8+ 981216 402 1.3- 1.0- 990213 693 0.0 0.2-
981123 360 0.2- 0.0 981217 402 0.4+ 0.3+ 990214 693 0.2- 0.7-
981123 360 0.4- 0.2+ 981217 402 0.4+ 0.4- 990214 693 0.1+ 0.2+
981123 360 0.3+ 0.1+ 981217 402 (0.4- 2.0-) 990214 693 0.3+ 0.2-
981124 691 0.2- 0.4+ 981219 691 0.8- 0.3- 990412 693 1.1+ 0.0
981124 691 0.6- 0.1+ 981219 691 1.2- 0.8- 990412 693 1.5+ 0.3-
981124 691 0.1+ 0.7+ 981223 402 (2.1+ 0.2-) 990415 693 (2.6+ 0.6-)
981124 709 0.7+ 0.4+ 981223 402 0.7+ 1.4- 990415 693 (3.2+ 0.2-)
981124 709 0.0 0.4+ 981223 402 1.9+ 0.3+ 990415 693 (2.9+ 0.2-)
981124 709 0.4+ 0.5+ 981223 402 (2.3+ 0.5-) 050704 415 0.4+ 0.4-
981124 709 0.9- 0.1+ 981223 118 0.8+ 0.2+ 050704 415 0.6+ 0.6-
981124 709 0.1+ 0.5+ 981223 118 0.6+ 0.4- 050704 415 0.3+ 0.3-
981124 426 0.3- 1.3+ 981223 118 1.4+ 0.8+ 050704 415 0.4+ 0.8-
981124 426 0.7- 0.5+ 990105 402 0.6- 0.5- 050704 415 0.1- 0.5-
981125 402 (0.2- 2.9-) 990105 402 1.8+ 0.3- 050705 415 0.4- 0.1-
981125 402 1.0- 0.7- 990105 402 0.4- 0.3+ 050705 415 0.8+ 0.1-
981125 402 0.1- 0.2- 990113 360 0.5- 0.1- 050705 415 0.2- 0.7+
981128 402 0.7+ 0.7+
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