MPEC 2010-H58 : 2008 EM9
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M.P.E.C. 2010-H58 Issued 2010 Apr. 24, 17:36 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.minorplanetcenter.org/iau/mpc.html ISSN 1523-6714
2008 EM9
Revision to MPEC 2008-E86
Additional Observations:
K08E09M 2C2009 06 02.38321814 49 09.150-15 44 50.10 22.8 R EH058568
K08E09M 2C2009 06 02.39139814 49 08.653-15 44 47.64 22.8 R EH058568
K08E09M 2C2009 06 02.39537614 49 08.413-15 44 46.43 22.8 R EH058568
K08E09M 2C2009 06 22.39070514 33 22.523-14 20 01.14 23.3 R EH058568
K08E09M 2C2009 06 22.39486214 33 22.379-14 20 00.24 23.5 R EH058568
Observer details:
568 Mauna Kea. Observers M. Micheli, G. T. Elliott, D. J. Tholen. Measurers
G. T. Elliott, D. J. Tholen. 2.24-m University of Hawaii reflector.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
090602 568 5.3- 1.4+ 090622 568 4.8- 1.4+ MPO140199 +0.023 day
Orbital elements:
2008 EM9 Earth MOID = 0.1345 AU
Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC
M 333.03118 (2000.0) P Q
n 0.35924126 Peri. 181.68269 +0.62387837 -0.77152276
a 1.9598007 Node 229.73945 +0.71892577 +0.62909305
e 0.8515974 Incl. 9.39823 +0.30646616 +0.09483971
P 2.74 H 17.5 G 0.15 U 3
Residuals in seconds of arc
080309 E12 0.2- 0.1+ 080322 673 0.1- 0.4- 080412 176 0.2+ 0.1-
080309 E12 0.1+ 0.2+ 080322 673 0.3+ 0.2- 080412 176 0.2+ 0.4-
080309 E12 0.1+ 0.2+ 080322 673 1.2+ 0.6- 080412 176 0.5+ 0.2+
080309 E12 0.0 0.0 080322 673 0.1- 0.5- 080412 176 0.0 0.2-
080309 E12 0.1- 0.3+ 080325 595 0.5+ 0.5+ 080412 176 0.1+ 0.3-
080310 854 0.3- 0.4+ 080325 595 0.3- 0.5+ 080412 176 0.1- 0.2-
080310 474 0.1+ 0.2+ 080325 595 0.0 0.7+ 080414 704 1.0+ 0.7+
080310 854 0.1- 0.2+ 080326 448 0.7- 0.2- 080414 704 1.0+ 0.1+
080310 854 0.3- 0.0 080326 448 0.0 0.6- 080414 704 1.0+ 0.6-
080310 474 0.2- 1.9- 080326 448 0.1+ 0.0 080414 704 1.3+ 0.1+
080310 474 0.1- 0.5- 080328 H51 1.2- 0.2+ 080414 704 0.4+ 0.4+
080310 474 0.4+ 0.0 080328 H51 0.6- 0.9+ 080422 H55 0.5+ 0.1+
080310 474 1.0+ 0.0 080328 H51 0.2+ 0.0 080422 H55 0.0 0.2-
080310 701 (2.5+ 0.5+) 080328 H51 0.0 0.2+ 080422 H55 0.4+ 0.3-
080310 701 0.2- 1.1+ 080329 703 0.5- 0.1+ 080423 H55 0.3+ 0.1+
080310 701 0.2- 0.7+ 080329 703 0.4- 0.1- 080423 H55 0.2+ 0.1-
080310 701 0.3+ 0.6- 080329 703 0.5- 0.2+ 080423 H55 0.0 0.4-
080310 E12 0.1- 0.1+ 080405 448 0.1+ 0.1- 080426 151 0.5+ 0.8-
080310 E12 0.1- 0.1+ 080405 448 0.0 0.1- 080426 151 0.1+ 0.7-
080310 E12 0.1+ 0.1+ 080405 448 0.0 0.1- 080426 151 0.0 0.3-
080310 E12 0.1- 0.1+ 080405 703 1.0- 0.6+ 080522 H55 0.4+ 1.5+
080310 E12 0.0 0.1+ 080405 703 0.5- 0.1+ 080522 H55 0.5+ 1.3+
080311 E12 0.1- 0.1+ 080405 703 0.6- 0.5+ 080522 H55 0.8+ 1.3+
080311 E12 0.1+ 0.0 080405 703 0.3- 0.8+ 090602 568 0.1+ 0.0
080311 E12 0.0 0.1- 080405 703 0.6- 0.2+ 090602 568 0.0 0.0
080321 808 1.7+ 2.0- 080405 703 0.4- 0.3+ 090602 568 0.0 0.0
080321 808 0.6- 0.6+ 080405 703 0.4- 0.4- 090622 568 0.1- 0.0
080321 808 0.9- 1.5- 080405 703 0.9- 0.0 090622 568 0.0 0.1+
Ephemeris:
2008 EM9 a,e,i = 1.96, 0.85, 9 q = 0.2908
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2010 04 24 18 29.11 -17 48.0 1.803 2.424 116.5 21.8 21.8
2010 05 04 18 27.78 -17 03.0 1.598 2.341 126.4 20.3 21.4
2010 05 14 18 22.47 -16 11.9 1.406 2.254 137.0 17.8 20.9
2010 05 24 18 12.23 -15 13.0 1.232 2.162 148.6 14.1 20.4
2010 06 03 17 56.21 -14 04.0 1.081 2.065 160.8 9.3 19.9
2010 06 13 17 33.94 -12 42.7 0.957 1.964 169.3 5.5 19.3
2010 06 23 17 06.16 -11 09.4 0.865 1.856 161.3 10.1 19.2
2010 07 03 16 35.18 -09 29.1 0.806 1.743 145.7 19.2 19.2
2010 07 13 16 04.41 -07 52.9 0.777 1.623 129.1 29.1 19.3
2010 07 23 15 37.09 -06 32.3 0.769 1.495 113.0 38.7 19.3
2010 08 02 15 14.79 -05 32.7 0.771 1.359 98.1 47.7 19.4
2010 08 12 14 57.33 -04 52.8 0.773 1.213 84.4 56.2 19.4
2010 08 22 14 43.15 -04 25.5 0.764 1.056 71.4 65.2 19.3
Gareth V. Williams (C) Copyright 2010 MPC M.P.E.C. 2010-H58
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