P/1998 U4 = 2010 P3 (Spahr)
Epoch 2012 Apr. 23.0 TT = JDT 2456040.5
T 2012 Apr. 3.59023 TT Nakano
q 3.9799435 (2000.0) P Q
n 0.07601892 Peri. 247.68554 +0.36912526 -0.92935140
a 5.5189304 Node 180.77312 +0.91824927 +0.36349039
e 0.2788560 Incl. 32.48283 -0.14340436 -0.06465838
P 12.97
From 139 observations 1997-2010, mean residual 0".67.
The correction to the prediction in NK 1664 (= HICQ 2008/2009) is
-0.065 day. RunOff values are +28" for R.A. and -29" for Decl..
Residuals in seconds of arc
1997/ 981115 360 0.1+ 0.2+ 990214 360 0.1+ 0.7+
971029 566 0.6+ 1.2+ 981122 900 0.5+ 0.4+ 990214 360 0.1- 0.9+
971029 566 0.9- 0.1- 981122 900 1.1- 0.6+ 990216 071 0.4+ 1.0+
971029 566 0.0 0.9+ 981123 372 0.4+ 0.2+ 990216 071 1.7+ 0.9+
971029 566 0.3+ 0.6+ 981123 360 0.3+ 0.8- 990216 071 1.6+ 0.4+
971227 566 1.1+ 1.3+ 981123 360 0.3+ 0.4- 990216 071 1.4+ 0.5+
1998/ 981126 402 0.4+ 0.2- 990216 071 (2.0+ 0.5+)
981027 703 0.7- 0.5+ 981126 402 0.3+ 0.9- 990216 071 1.8+ 1.0+
981027 703 1.1- 0.2+ 981126 402 0.1+ 0.6- 990216 071 1.5+ 0.9+
981027 703 0.7- 0.9+ 981127 696 0.2- 0.4- 991109 402 0.9- 0.4-
981028 703 0.6- 0.1- 981130 696 0.1- 1.0- 991109 402 0.8- 0.7-
981028 703 0.0 0.4+ 981206 104 0.7- 0.2- 991109 402 0.7- 0.1+
981028 703 0.3- 0.0 981206 104 0.6+ 0.3+ 991109 402 0.2- 0.1+
981028 691 1.0- 1.2+ 981209 761 (3.5+ 2.9-) 991113 695 0.5- 1.0+
981029 703 1.7- 0.4+ 981209 761 (2.0+ 2.5-) 991113 695 0.7- 0.8+
981029 703 (2.3- 0.1-) 981209 113 0.4- 0.3- 991116 474(35.4+ 25.9+)
981029 713 0.6- 0.3+ 981209 113 1.6- 0.9+ 991116 474(34.3+ 30.0+)
981029 703 0.6- 0.2+ 981210 118 0.4+ 0.4- 991117 474 0.3- 1.9+
981030 734 0.0 0.1- 981210 118 0.1- 0.0 991117 474 (0.6- 2.0+)
981030 734 0.2+ 0.1- 981212 402 0.1- 1.3- 991117 474 (1.5- 2.4+)
981030 734 0.2- 0.1+ 981212 402 0.2- 0.7- 991203 360 0.1+ 0.3-
981030 658 0.7- 0.5- 981212 402 0.3- 1.2- 991203 360 0.7- 0.0
981030 658 0.7- 0.5- 981213 897 0.1+ 0.1- 991203 360 0.3- 0.2-
981030 587 0.9- 1.1- 981213 897 0.2- 0.4- 991220 897 0.2- 1.4-
981030 587 0.6- 0.6- 981213 897 1.4- 0.2- 991220 897 (2.2- 0.0 )
981031 402 0.4- 0.3+ 981217 360 0.0 0.2+ 991220 897 (3.2- 0.3+)
981031 402 0.3+ 0.7+ 981217 360 0.2+ 0.4+ 991231 704 0.3+ 0.0
981103 402 1.4+ 0.4- 981218 402 0.4- 1.1- 991231 704 0.3- 0.1-
981103 402 0.8+ 0.3- 981218 402 0.0 1.3- 991231 704 0.0 0.5-
981103 402 0.5+ 0.3+ 981218 402 0.5- 0.9- 991231 704 0.2+ 0.1+
981107 046 0.5- 0.5- 981224 402 0.4+ 0.0 2000/
981107 046 0.5+ 0.1- 981224 402 0.6+ 0.4+ 000104 402 0.4- 0.5-
981107 046 0.0 0.3- 981224 402 0.0 0.3+ 000104 402 0.9+ 0.1+
981107 046 0.4- 0.8- 1999/ 000118 402 1.3+ 1.3+
981110 360 0.0 0.5- 990105 402 1.3+ 1.2+ 000118 402 0.7+ 0.4+
981110 360 0.1- 0.4- 990105 402 0.4+ 0.9+ 000118 402 0.5- 0.7-
981110 360 0.2- 0.3- 990105 402 0.9+ 0.2+ 000210 704 0.2+ 0.0
981111 355 0.5+ 0.3+ 990113 372 0.9- 1.3+ 000210 704 1.2+ 0.3-
981111 897 0.7- 0.6- 990114 691 0.3+ 0.0 000210 704 0.2+ 0.0
981111 355 0.4- 1.5+ 990114 691 0.4+ 0.1- 2001/
981111 897 0.4- 0.6- 990114 691 0.1+ 0.1+ 010217 608 0.1+ 0.2-
981111 897 0.1- 0.8- 990118 402 1.2+ 1.3+ 010217 608 0.9+ 0.3-
981112 402 0.2- 0.5- 990118 402 1.0+ 0.6+ 010217 608 0.5- 0.2+
981112 402 0.1+ 0.8- 990118 402 0.4+ 1.3+ 010415 608 0.2- 0.3-
981112 402 0.0 0.6- 990121 360 0.1+ 0.1- 2010/
981112 360 0.6+ 0.9- 990121 360 0.3+ 0.2+ 100814 H36 0.8- 0.0
981112 372 1.3- 0.2- 990121 046 0.6+ 1.3+ 100814 H36 0.5- 0.3-
981112 360 0.3+ 0.6- 990121 046 0.9+ 0.3+ 100814 H36 0.2+ 0.7-
981112 360 0.1+ 0.5- 990121 046 1.3+ 0.3+ 100816 H36 0.9+ 0.0
981114 372 0.6- 0.2+ 990204 402 0.5- 0.6- 100816 H36 0.3+ 0.1+
981115 372 1.2+ 0.4- 990204 402 1.1- 0.4- 100816 H36 0.1- 0.1-
981115 360 0.3+ 0.1+ 990204 402 0.3- 0.4-
NAKANO
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write mail from CFAD0::NAKANO on 2010-08-21 03:14:53(JST).
OAA/CS
P/1998 U4 (Spahr)
Epoch 1999 Mar. 3.0 TT = JDT 2451240.5
T 1999 Feb. 26.51243 TT Nakano
q 3.8433454 (2000.0) P Q
n 0.07497118 Peri. 251.75001 +0.28876665 -0.95727137
a 5.5702302 Node 181.71692 +0.94854686 +0.28383859
e 0.3100204 Incl. 31.51911 -0.12989485 -0.05538205
P 13.15
From 134 observations 1997 Oct. 29-2001 Apr. 15, mean residual 0".68.
Residuals in seconds of arc
1997/ 981115 372 1.3+ 0.4- 990121 046 1.3+ 0.3+
971029 566 0.4+ 1.1+ 981115 360 0.3+ 0.1+ 990204 402 0.5- 0.6-
971029 566 1.1- 0.2- 981115 360 0.1+ 0.2+ 990204 402 1.2- 0.4-
971029 566 0.2- 0.8+ 981122 900 0.5+ 0.4+ 990204 402 0.4- 0.4-
971029 566 0.1+ 0.5+ 981122 900 1.1- 0.5+ 990214 360 0.1+ 0.7+
971227 566 0.9+ 1.3+ 981123 372 0.5+ 0.2+ 990214 360 0.2- 0.9+
1998/ 981123 360 0.3+ 0.8- 990216 071 0.3+ 1.0+
981027 703 0.7- 0.4+ 981123 360 0.3+ 0.4- 990216 071 1.6+ 0.9+
981027 703 1.0- 0.2+ 981126 402 0.4+ 0.2- 990216 071 1.6+ 0.4+
981027 703 0.7- 0.8+ 981126 402 0.3+ 0.9- 990216 071 1.4+ 0.5+
981028 703 0.5- 0.1- 981126 402 0.2+ 0.7- 990216 071 1.9+ 0.5+
981028 703 0.1+ 0.4+ 981127 696 0.2- 0.5- 990216 071 1.8+ 1.0+
981028 703 0.2- 0.0 981130 696 0.1- 1.0- 990216 071 1.4+ 0.9+
981028 691 1.0- 1.2+ 981206 104 0.7- 0.2- 991109 402 1.0- 0.4-
981029 703 1.7- 0.4+ 981206 104 0.6+ 0.3+ 991109 402 0.9- 0.7-
981029 703 (2.3- 0.1-) 981209 761 (3.5+ 2.9-) 991109 402 0.8- 0.1+
981029 713 0.6- 0.2+ 981209 761 (2.0+ 2.5-) 991109 402 0.3- 0.1+
981029 703 0.6- 0.2+ 981209 113 0.4- 0.3- 991113 695 0.6- 1.0+
981030 734 0.0 0.1- 981209 113 1.6- 0.9+ 991113 695 0.8- 0.8+
981030 734 0.2+ 0.1- 981210 118 0.4+ 0.4- 991116 474(35.3+ 25.9+)
981030 734 0.2- 0.1+ 981210 118 0.1- 0.0 991116 474(34.2+ 30.0+)
981030 658 0.6- 0.5- 981212 402 0.1- 1.3- 991117 474 0.4- 1.9+
981030 658 0.6- 0.5- 981212 402 0.2- 0.8- 991117 474 (0.7- 2.0+)
981030 587 0.9- 1.1- 981212 402 0.3- 1.2- 991117 474 (1.6- 2.4+)
981030 587 0.5- 0.6- 981213 897 0.1+ 0.1- 991203 360 0.0 0.3-
981031 402 0.4- 0.3+ 981213 897 0.2- 0.5- 991203 360 0.8- 0.0
981031 402 0.3+ 0.7+ 981213 897 1.4- 0.2- 991203 360 0.4- 0.2-
981103 402 1.4+ 0.4- 981217 360 0.1- 0.2+ 991220 897 0.3- 1.4-
981103 402 0.8+ 0.3- 981217 360 0.2+ 0.4+ 991220 897 (2.3- 0.0 )
981103 402 0.5+ 0.3+ 981218 402 0.4- 1.1- 991220 897 (3.3- 0.3+)
981107 046 0.5- 0.5- 981218 402 0.1- 1.3- 991231 704 0.1+ 0.0
981107 046 0.5+ 0.2- 981218 402 0.6- 0.9- 991231 704 0.4- 0.1-
981107 046 0.0 0.3- 981224 402 0.4+ 0.0 991231 704 0.1- 0.5-
981107 046 0.4- 0.8- 981224 402 0.5+ 0.4+ 991231 704 0.1+ 0.1+
981110 360 0.0 0.6- 981224 402 0.1- 0.3+ 2000/
981110 360 0.1- 0.4- 1999/ 000104 402 0.5- 0.5-
981110 360 0.2- 0.4- 990105 402 1.2+ 1.2+ 000104 402 0.8+ 0.1+
981111 355 0.5+ 0.3+ 990105 402 0.4+ 0.9+ 000118 402 1.1+ 1.3+
981111 897 0.7- 0.6- 990105 402 0.9+ 0.2+ 000118 402 0.5+ 0.4+
981111 355 0.4- 1.4+ 990113 372 1.0- 1.3+ 000118 402 0.6- 0.7-
981111 897 0.4- 0.6- 990114 691 0.2+ 0.0 000210 704 0.0 0.0
981111 897 0.1- 0.9- 990114 691 0.4+ 0.1- 000210 704 1.0+ 0.3-
981112 402 0.2- 0.5- 990114 691 0.0 0.1+ 000210 704 0.0 0.1+
981112 402 0.1+ 0.8- 990118 402 1.1+ 1.4+ 2001/
981112 402 0.0 0.6- 990118 402 1.0+ 0.6+ 010217 608 0.5+ 0.1-
981112 360 0.6+ 1.0- 990118 402 0.4+ 1.3+ 010217 608 1.3+ 0.3-
981112 372 1.3- 0.3- 990121 360 0.0 0.1- 010217 608 0.1- 0.3+
981112 360 0.3+ 0.6- 990121 360 0.3+ 0.2+ 010415 608 0.1+ 0.1-
981112 360 0.1+ 0.5- 990121 046 0.5+ 1.3+
981114 372 0.5- 0.2+ 990121 046 0.8+ 0.3+
NAKANO
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write mail from CFAD0::NAKANO on 2008-09-07 23:13:40(JST).
P/1998 U4 (Spahr)
Epoch 1999 Mar. 3.0 TT = JDT 2451240.5
T 1999 Feb. 26.47586 TT Nakano
q 3.8433306 (2000.0) P Q
n 0.07496815 Peri. 251.74458 +0.28885415 -0.95724494
a 5.5703803 Node 181.71715 +0.94852098 +0.28392501
e 0.3100416 Incl. 31.51912 -0.12988933 -0.05539597
P 13.15
From 127 observations 1998 Oct. 27-2000 Feb. 10, mean residual 0".69.
NAKANO
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(C) Copyright 2000 OAA/ComputingSection
write mail from CFAD0::NAKANO on 2000-12-24 02:39:41(JST).
P/1998 U4 (Spahr)
Epoch 1999 Mar. 3.0 TT = JDT 2451240.5
T 1999 Feb. 26.47056 TT Nakano
q 3.8433249 (2000.0) P Q
n 0.07496885 Peri. 251.74380 +0.28886701 -0.95724106
a 5.5703459 Node 181.71716 +0.94851720 +0.28393774
e 0.3100384 Incl. 31.51911 -0.12988833 -0.05539778
P 13.15
From 124 observations 1998 Oct. 27-2000 Jan. 18, mean residual 0".69.
NAKANO
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(C) Copyright 2000 OAA/ComputingSection
write mail from CFAD0::NAKANO on 2000-01-25 02:03:41(JST).
P/1998 U4 (Spahr)
Epoch 1999 Mar. 3.0 TT = JDT 2451240.5
T 1999 Feb. 26.41804 TT Nakano
q 3.8432856 (2000.0) P Q
n 0.07497143 Peri. 251.73632 +0.28899404 -0.95720274
a 5.5702181 Node 181.71701 +0.94847989 +0.28406400
e 0.3100296 Incl. 31.51891 -0.12987817 -0.05541266
P 13.15
From 109 observations 1998 Oct. 27-1999 Nov. 17, mean residual 0".66.
NAKANO
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(C) Copyright 1999 OAA/ComputingSection
write mail from CFAD0::NAKANO on 1999-11-22 03:07:15(JST).
P/1998 U4 (Spahr)
Epoch 1999 Mar. 3.0 TT = JDT 2451240.5
T 1999 Feb. 26.63509 TT Nakano
q 3.8432141 (2000.0) P Q
n 0.07496687 Peri. 251.77058 +0.28844800 -0.95736771
a 5.5704438 Node 181.71515 +0.94864214 +0.28352562
e 0.3100704 Incl. 31.51842 -0.12990701 -0.05531999
P 13.15
From 86 observations 1998 Oct. 27-1999 Feb. 14, mean residual 0".63.
P/1998 U4 (Spahr)
Epoch 1999 Mar. 3.0 TT = JDT 2451240.5
T 1999 Feb. 26.95770 TT Nakano
q 3.8428027 (2000.0) P Q
n 0.07495845 Peri. 251.82452 +0.28760355 -0.95762234
a 5.5708610 Node 181.71113 +0.94889439 +0.28269544
e 0.3101959 Incl. 31.51659 -0.12993706 -0.05516109
P 13.15
P/1998 U4 (Spahr)
Epoch 1999 Mar. 3.0 TT = JDT 2451240.5
T 1999 Feb. 27.40255 TT Nakano
q 3.8421432 (2000.0) P Q
n 0.07495056 Peri. 251.90130 +0.28643049 -0.95797504
a 5.5712520 Node 181.70335 +0.94924479 +0.28154575
e 0.3103627 Incl. 31.51309 -0.12996886 -0.05491638
P 13.15
From 64 observations 1998 Oct. 27-Dec. 24, mean residual 0".61.
P/1998 U4 (Spahr)
T 1999 Feb. 27.55142 TT Nakano
q 3.8409112 (2000.0) P Q
n 0.07493990 Peri. 251.94950 +0.28593052 -0.95812763
a 5.5717800 Node 181.68177 +0.94940572 +0.28108572
e 0.3106492 Incl. 31.50314 -0.12989423 -0.05461014
P 13.15
From 47 observations 1998 Oct. 27-Nov. 26.
–ß‚è‚Ü‚·B