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M.P.E.C. 2008-E110 Issued 2008 Mar. 14, 21:01 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 JJ43
Revision to MPEC 2007-N14
Additional Observations:
K07J43J C2002 05 10.32076 15 01 27.49 -25 52 08.4 21.0 R EE110644
K07J43J C2002 05 10.33949 15 01 27.40 -25 52 08.6 20.5 R EE110644
K07J43J C2002 05 10.36785 15 01 27.20 -25 52 08.2 19.9 R EE110644
K07J43J C2002 06 05.29823 14 59 23.56 -25 41 51.4 EE110644
K07J43J C2002 06 18.19666 14 58 32.16 -25 36 32.6 EE110644
K07J43J C2002 06 27.23639 14 58 02.59 -25 32 58.1 21.0 R EE110644
Observer details:
644 Palomar Mountain/NEAT. Observers R. Bambery, E. Helin, S. Pravdo,
M. Hicks, K. Lawrence, R. Thicksten. Measurer R. J. Bouma. 1.2-m Schmidt
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
020510 644 0.02- 0.03+ 020627 644 57.1- 98.9+ MPO124511
Orbital elements:
2007 JJ43
Epoch 2008 May 14.0 TT = JDT 2454600.5 MPC
M 329.93940 (2000.0) P Q
n 0.00293826 Peri. 6.72040 +0.15943889 +0.96498902
a 48.2772759 Node 272.60306 -0.91517359 +0.06536996
e 0.1633748 Incl. 12.03345 -0.37018446 +0.25401368
P 335 H 4.8 G 0.15 U 5
Residuals in seconds of arc
020510 644 0.2+ 0.3+ 070514 675 0.4- 0.8- 070619 675 0.1+ 0.2+
020510 644 0.2+ 0.3- 070514 675 0.1+ 0.6- 070620 675 0.4+ 0.6+
020510 644 0.5- 0.5- 070515 675 0.7- 0.8- 070706 675 0.2+ 0.2+
020605 644 0.3+ 0.1- 070515 675 0.0 0.3- 070706 675 0.0 0.6+
020618 644 0.2- 0.4+ 070619 675 0.1+ 0.2+ 070707 675 0.1+ 0.1+
020627 644 0.0 0.2+ 070619 675 0.3+ 0.1+ 070707 675 0.1- 0.6+
Ephemeris:
2007 JJ43 a,e,i = 48.28, 0.16, 12 q = 40.390
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 03 05 15 43.06 -26 47.7 41.608 41.875 105.0 1.3 21.2
2008 03 15 15 42.86 -26 48.4 41.444 41.872 114.9 1.2 21.2
2008 03 25 15 42.50 -26 48.4 41.292 41.869 124.8 1.1 21.2
2008 04 04 15 42.00 -26 47.8 41.157 41.867 134.7 1.0 21.1
2008 04 14 15 41.36 -26 46.5 41.044 41.864 144.5 0.8 21.1
2008 04 24 15 40.63 -26 44.7 40.954 41.861 154.1 0.6 21.1
2008 05 04 15 39.82 -26 42.4 40.891 41.859 163.4 0.4 21.1
2008 05 14 15 38.97 -26 39.6 40.857 41.856 171.3 0.2 21.0
2008 05 24 15 38.11 -26 36.5 40.851 41.853 171.7 0.2 21.0
2008 06 03 15 37.27 -26 33.1 40.874 41.850 164.0 0.4 21.0
2008 06 13 15 36.48 -26 29.5 40.926 41.848 154.9 0.6 21.1
2008 06 23 15 35.77 -26 26.0 41.003 41.845 145.5 0.8 21.1
2008 07 03 15 35.17 -26 22.5 41.105 41.842 136.0 1.0 21.1
2008 07 13 15 34.69 -26 19.2 41.227 41.840 126.5 1.1 21.1
2008 07 23 15 34.35 -26 16.2 41.366 41.837 117.0 1.2 21.2
2008 08 02 15 34.17 -26 13.6 41.519 41.834 107.4 1.3 21.2
2008 08 12 15 34.16 -26 11.5 41.680 41.832 97.9 1.4 21.2
2008 08 22 15 34.31 -26 09.9 41.845 41.829 88.4 1.4 21.2
2008 09 01 15 34.64 -26 08.9 42.009 41.826 78.9 1.4 21.2
2008 09 11 15 35.13 -26 08.5 42.168 41.823 69.4 1.3 21.2
2008 09 21 15 35.77 -26 08.7 42.316 41.821 59.8 1.2 21.2
2008 10 01 15 36.55 -26 09.5 42.451 41.818 50.3 1.1 21.2
2008 10 11 15 37.46 -26 10.9 42.566 41.815 40.8 0.9 21.2
2008 10 21 15 38.47 -26 12.8 42.660 41.813 31.3 0.7 21.2
This 1:2 Neptune librator remains more than 14 AU from Neptune over a
14 000-year period.
Brian G. Marsden (C) Copyright 2008 MPC M.P.E.C. 2008-E110
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