軌道要素
Comet 128P/Shoemaker-Holt 1 ( Nucleus A )
The following improved orbital elements by Kenji Muraoka, are
from 67 observations 1987 Sept. 24 to 1996 Dec. 4, perturbations
by 9 Planets, Moon and 5 minor planets were taken into account.
The mean residual is +/- 0.89 arc seconds.
Epoch = 1997 Nov. 8.0 TT JDT = 2450760.5
T = 1997 Nov. 20.27420 +/- 0.00651 (m.e.) TT
Peri. = 210.21402 +/- 0.00125
Node = 214.52736 +/- 0.00038 (2000.0)
Incl. = 4.36150 +/- 0.00005
q = 3.0470294 +/- 0.0000016 AU
e = 0.3212741 +/- 0.0000003
a = 4.4893375 +/- 0.0000007 AU
n = 0.10361692 +/- 0.00000003
P = 9.512 +/- 0.0000023 years
Comet 128P/Shoemaker-Holt 1 ( Nucleus B )
The following improved orbital elements by Kenji Muraoka, are
from 277 observations 1987 Sep. 24 to 1999 Feb. 14 perturbations
by 9 Plantes, Moon and 5 minor planets were taken into account.
The mean residual is +/- 0.82 arc seconds.
Epoch = 1997 Nov. 8.0 TT JDT = 2450760.5
T = 1997 Nov. 20.29529 +/- 0.00050 (m.e.) TT
Peri. = 210.21864 +/- 0.00021
Node = 214.52738 +/- 0.00019 (2000.0)
Incl. = 4.36165 +/- 0.00002
q = 3.0470326 +/- 0.0000008 AU
e = 0.3212733 +/- 0.0000002
a = 4.4893363 +/- 0.0000004 AU
n = 0.10361696 +/- 0.00000001
P = 9.512 +/- 0.0000012 years
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