MPEC 2009-A17 : 2007 TH422, 2007 TJ422, 2007 TK422
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M.P.E.C. 2009-A17 Issued 2009 Jan. 2, 18:35 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
2007 TH422, 2007 TJ422, 2007 TK422
Revision to MPEC 2008-D39, 2008-D48
Additional Observations:
K07Tg2H C2008 12 01.35288 03 58 41.25 +00 51 03.6 22.0 R EA017688
K07Tg2H C2008 12 01.39762 03 58 40.93 +00 51 03.3 EA017688
K07Tg2H C2008 12 21.31378 03 56 30.71 +00 52 54.0 21.6 r EA017695
K07Tg2H C2008 12 21.38686 03 56 30.29 +00 52 54.8 21.4 r EA017695
K07Tg2H C2008 12 22.30790 03 56 24.82 +00 53 08.4 21.5 r EA017695
K07Tg2J C2008 12 01.07660 23 57 24.56 +02 02 21.1 23.1 R EA017688
K07Tg2J C2008 12 01.23865 23 57 24.32 +02 02 20.3 EA017688
K07Tg2J C2008 12 21.13656 23 57 57.38 +02 03 27.1 22.4 r EA017695
K07Tg2J C2008 12 21.18283 23 57 57.58 +02 03 28.0 22.3 r EA017695
K07Tg2J C2008 12 22.17873 23 58 02.04 +02 03 49.5 21.9 r EA017695
K07Tg2K C2008 12 01.09201 00 31 54.85 +00 37 50.3 22.2 R EA017688
K07Tg2K C2008 12 01.25939 00 31 54.33 +00 37 49.7 EA017688
K07Tg2K C2008 12 21.15619 00 31 30.50 +00 38 14.5 21.4 r EA017695
K07Tg2K C2008 12 22.09904 00 31 31.11 +00 38 27.1 21.3 r EA017695
K07Tg2K C2008 12 22.18482 00 31 31.17 +00 38 28.2 21.5 r EA017695
Observer details:
688 Lowell Observatory, Anderson Mesa Station. Observer L. H. Wasserman.
1.8-m Perkins telescope + CCD.
695 Kitt Peak. Observers J. W. Parker, A. Bieryla. Measurer A. Bieryla.
3.5-m reflector + CCD.
Orbital elements:
2007 TH422
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 2.80197 (2000.0) P Q
n 0.00400032 Peri. 313.00691 +0.56368830 -0.67546454
a 39.3012084 Node 96.28440 +0.82566073 +0.47697286
e 0.2759168 Incl. 28.57260 -0.02323492 +0.56235625
P 246 H 7.7 G 0.15 U 5
Residuals in seconds of arc
K07A3 705 0.0 0.3+ K07B2 705 0.0 0.0 K07BK 705 0.1+ 0.1+
K07A3 705 0.1- 0.1+ K07B2 705 0.3- 0.2- K07BK 705 0.2+ 0.0
K07A9 705 0.0 0.2+ K07B5 705 0.1+ 0.0 K08C1 688 0.0 0.2+
K07A9 705 0.1- 0.1- K07B5 705 0.2+ 0.0 K08C1 688 0.0 0.0
K07AC 705 0.0 0.1- K07BB 705 0.0 0.0 K08C1 688 0.0 0.2+
K07AC 705 0.0 0.0 K07BB 705 0.2- 0.3- K08C1 688 0.0 0.0
K07AJ 705 0.0 0.0 K07BE 705 0.1+ 0.2+ K08CL 695 0.1- 0.0
K07AJ 705 0.2- 0.2- K07BE 705 0.1- 0.0 K08CL 695 0.2+ 0.2-
K07AK 705 0.5+ 0.0 K07BI 705 0.1- 0.1- K08CM 695 0.1- 0.1-
K07AK 705 0.1- 0.0 K07BI 705 0.0 0.1+
2007 TJ422
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 31.50763 (2000.0) P Q
n 0.01135210 Peri. 317.04931 +0.09946969 +0.99447576
a 19.6073369 Node 318.62595 -0.89863536 +0.07531534
e 0.5272834 Incl. 2.90709 -0.42727072 +0.07311330
P 86.82 H 11.1 G 0.15 U 4
Residuals in seconds of arc
K0795 705 0.0 0.1+ K07AF 705 0.2- 0.0 K08C1 688 0.2+ 0.9-
K0795 705 0.1- 0.3+ K07AF 705 0.0 0.0 K08C1 688 0.4- 0.6+
K079E 705 0.1- 0.0 K07AK 705 0.0 0.0 K08C1 688 0.2+ 0.9-
K079E 705 0.3+ 0.1+ K07AK 705 0.1+ 0.0 K08C1 688 0.4- 0.6+
K07A6 705 0.2- 0.1- K07B4 705 0.0 0.1- K08CL 695 0.0 0.3+
K07A6 705 0.0 0.0 K07B4 705 0.2+ 0.1- K08CL 695 0.2+ 0.2+
K07AC 705 0.1- 0.1- K07B7 705 0.1+ 0.1+ K08CM 695 0.2+ 0.2+
K07AC 705 0.1- 0.1- K07B7 705 0.3+ 0.1-
2007 TK422
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 80.19729 (2000.0) P Q
n 0.01007141 Peri. 201.34499 -0.05867657 +0.99709189
a 21.2361573 Node 65.31836 -0.90797823 -0.03306018
e 0.2003821 Incl. 3.06786 -0.41488864 -0.06866424
P 97.86 H 8.7 G 0.15 U 5
Residuals in seconds of arc
K079F 705 0.0 0.2- K07AF 705 0.0 0.2+ K08C1 688 0.0 0.4-
K079F 705 0.1+ 0.1- K07AF 705 0.0 0.1- K08C1 688 0.1- 0.7+
K079M 705 0.2- 0.2+ K07AK 705 0.0 0.0 K08C1 688 0.0 0.4-
K079M 705 0.0 0.1+ K07AK 705 0.1+ 0.2+ K08C1 688 0.1- 0.7+
K07A6 705 0.2+ 0.1- K07BB 705 0.1- 0.1+ K08CL 695 0.0 0.1-
K07A6 705 0.1+ 0.2+ K07BB 705 0.1+ 0.0 K08CM 695 0.1+ 0.1-
K07AD 705 0.2- 0.1- K07BC 705 0.1+ 0.0 K08CM 695 0.2+ 0.2-
K07AD 705 0.2+ 0.0 K07BC 705 0.1- 0.3-
Ephemerides:
2007 TH422 a,e,i = 39.30, 0.28, 29 q = 28.457
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 12 30 03 55.70 +00 55.5 27.781 28.484 135.0 1.4 22.4
2009 01 09 03 54.91 +00 59.8 27.901 28.485 125.6 1.6 22.4
2009 01 19 03 54.31 +01 05.4 28.039 28.486 116.1 1.8 22.4
2009 01 29 03 53.93 +01 12.3 28.191 28.486 106.5 1.9 22.5
2009 02 08 03 53.77 +01 20.1 28.352 28.487 96.9 2.0 22.5
2009 02 18 03 53.84 +01 28.9 28.516 28.488 87.4 2.0 22.5
2009 02 28 03 54.16 +01 38.2 28.680 28.489 77.9 1.9 22.5
2009 03 10 03 54.70 +01 48.0 28.837 28.490 68.6 1.9 22.5
2009 03 20 03 55.45 +01 58.0 28.984 28.490 59.5 1.7 22.5
2009 03 30 03 56.40 +02 08.0 29.116 28.491 50.5 1.6 22.5
2009 04 09 03 57.52 +02 17.7 29.230 28.492 41.9 1.3 22.5
2009 04 19 03 58.78 +02 27.0 29.324 28.493 33.7 1.1 22.5
2007 TJ422 a,e,i = 19.61, 0.53, 3 q = 9.2687
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 12 30 23 58.77 +02 07.6 14.118 14.016 82.0 4.0 22.9
2009 01 09 00 00.08 +02 15.0 14.309 14.040 72.2 3.8 23.0
2009 01 19 00 01.77 +02 25.0 14.491 14.064 62.5 3.6 23.0
2009 01 29 00 03.81 +02 37.4 14.661 14.088 52.9 3.2 23.0
2009 02 08 00 06.15 +02 51.8 14.813 14.112 43.4 2.8 23.0
2009 02 18 00 08.73 +03 08.0 14.945 14.136 34.0 2.2 23.0
2007 TK422 a,e,i = 21.24, 0.20, 3 q = 16.981
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 12 30 00 31.71 +00 40.9 21.377 21.383 89.0 2.6 22.3
2009 01 09 00 32.21 +00 45.6 21.556 21.390 79.0 2.6 22.3
2009 01 19 00 32.99 +00 52.1 21.730 21.397 69.0 2.5 22.3
2009 01 29 00 34.04 +01 00.2 21.893 21.405 59.2 2.3 22.3
2009 02 08 00 35.33 +01 09.7 22.041 21.412 49.4 2.0 22.3
2009 02 18 00 36.82 +01 20.3 22.171 21.420 39.7 1.7 22.3
2009 02 28 00 38.49 +01 31.8 22.278 21.427 30.1 1.3 22.3
Brian G. Marsden (C) Copyright 2009 MPC M.P.E.C. 2009-A17
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