MPEC 2007-T123: 2007 KJ
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M.P.E.C. 2007-T123 Issued 2007 Oct. 15, 22:40 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 KJ
Revision to MPEC 2007-K20
Additional Observations:
K07K00J C1996 06 17.50663 19 30 03.19 -19 42 41.2 17.4 R ET123566
K07K00J C1996 06 17.53122 19 30 06.82 -19 43 16.2 18.0 R ET123566
K07K00J C1996 06 17.55051 19 30 09.55 -19 43 43.4 18.4 R ET123566
K07K00J C1996 06 21.59811 19 41 48.49 -21 30 46.9 17.3 R ET123566
K07K00J C1996 06 21.61071 19 41 50.75 -21 31 09.0 ET123566
K07K00J C1996 06 21.61634 19 41 51.78 -21 31 19.3 17.6 R ET123566
K07K00J bC2007 10 14.35735 18 42 00.62 -41 28 47.2 19.1 R ET123474
K07K00J bC2007 10 14.36141 18 42 02.38 -41 28 50.7 18.7 R ET123474
K07K00J bC2007 10 14.37133 18 42 06.49 -41 28 52.6 19.0 R ET123474
K07K00J bC2007 10 14.37468 18 42 07.81 -41 28 56.0 19.6 R ET123474
Observer details:
474 Mount John Observatory, Lake Tekapo. Observer A. C. Gilmore. 1.0-m f/7.7
reflector + CCD.
566 Haleakala-NEAT/GEODSS. Observers R. Bambery, E. Helin, S. Pravdo,
M. Hicks, K. Lawrence, P. Kervin. Measurer R. Matson. 1.0-m f/2.2
Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
960617 566 2.23- 0.03- 071014 474 36.5+ 9.3- MPO121880 -0.012 day
Orbital elements:
2007 KJ Earth MOID = 0.0982 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 6.86672 (2000.0) P Q
n 0.26596435 Peri. 242.55177 +0.91187334 +0.37947958
a 2.3947146 Node 94.79349 -0.29881032 +0.87504295
e 0.5793486 Incl. 9.03381 -0.28142388 +0.30049140
P 3.71 H 18.8 G 0.15 U 2
Residuals in seconds of arc
960617 566 0.1- 0.5+ 070517 G96 0.3- 0.2+ 070524 448 0.4- 0.1-
960617 566 1.2+ 0.1- 070517 G96 0.2+ 0.1+ 070524 448 0.5- 0.3-
960617 566 0.5+ 0.5- 070517 G96 0.0 0.4+ 070524 448 1.4+ 0.1+
960621 566 0.5- 0.6+ 070518 850 0.9- 0.2+ 070608 291 0.5+ 1.3-
960621 566 0.5- 0.4+ 070518 H55 0.2+ 0.1- 070608 291 0.4+ 1.3-
960621 566 0.3- 0.1- 070518 H55 0.0 0.4+ 070608 291 0.8+ 0.3-
070516 G96 1.2+ 0.2- 070518 H55 0.1- 0.3- 070617 H55 0.2+ 0.5+
070516 G96 0.2- 0.0 070518 850 0.2- 0.5- 070617 H55 0.7+ 0.1-
070516 G96 0.0 0.0 070518 291 0.7- 0.1+ 070617 H55 0.5+ 0.2+
070516 G96 0.3- 0.2+ 070518 291 0.5- 0.1+ 070702 H55 0.5- 0.5-
070516 G96 0.6- 1.1+ 070518 291 0.5- 0.0 070702 H55 0.7- 0.4-
070516 G96 0.1- 0.1- 070518 474 0.8- 0.2+ 070702 H55 0.3+ 0.3+
070516 G96 0.4- 0.3+ 070518 474 0.2+ 0.6+ 070714 H55 0.3- 0.3+
070516 G96 0.2+ 0.2- 070518 474 0.2+ 0.1+ 070714 H55 0.0 0.5+
070517 673 0.0 0.3+ 070518 474 0.3- 0.1- 070714 H55 0.6- 1.0+
070517 673 0.2+ 0.7+ 070519 246 0.1+ 1.7+ 071014 474 0.0 0.7+
070517 673 0.8+ 0.5+ 070519 246 0.8- 0.9+ 071014 474 0.6+ 1.2-
070517 673 0.4+ 0.5+ 070519 246 0.4+ 0.5+ 071014 474 0.1+ 0.9+
070517 G96 0.0 0.3- 070519 246 0.3- 1.0+ 071014 474 0.9- 1.2-
Ephemeris:
2007 KJ a,e,i = 2.39, 0.58, 9 q = 1.0073
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 10 07 17 53.38 -39 58.3 0.522 1.010 76.1 73.8 20.0
2007 10 17 19 01.10 -41 42.5 0.493 1.028 79.5 72.4 19.9
2007 10 27 20 17.87 -40 36.4 0.478 1.061 84.6 68.8 19.7
2007 11 06 21 33.31 -36 09.4 0.483 1.108 90.6 63.5 19.7
2007 11 16 22 38.24 -29 13.1 0.514 1.164 96.4 57.6 19.8
2007 11 26 23 30.34 -21 23.7 0.570 1.229 100.8 52.1 19.9
2007 12 06 00 11.83 -13 56.0 0.651 1.300 103.3 47.5 20.2
2007 12 16 00 45.86 -07 22.9 0.753 1.374 103.8 44.1 20.6
2007 12 26 01 14.92 -01 50.3 0.873 1.451 102.7 41.4 20.9
2008 01 05 01 40.68 +02 48.2 1.008 1.530 100.4 39.2 21.3
2008 01 15 02 04.33 +06 41.9 1.156 1.609 97.2 37.3 21.7
2008 01 25 02 26.58 +09 59.2 1.315 1.688 93.3 35.6 22.0
Timothy B. Spahr (C) Copyright 2007 MPC M.P.E.C. 2007-T123
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