MPEC 2010-C50 : 2008 EB9
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M.P.E.C. 2010-C50 Issued 2010 Feb. 14, 02:35 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
2008 EB9
Revision to MPEC 2008-E80
Additional Observations:
K08E09B C2010 02 12.36432 11 54 11.86 +10 37 06.4 20.1 R EC050926
K08E09B C2010 02 12.36913 11 54 11.44 +10 36 59.5 20.7 R EC050926
K08E09B C2010 02 12.37395 11 54 11.02 +10 36 52.5 20.7 R EC050926
K08E09B C2010 02 13.37676 11 52 51.36 +10 12 40.9 20.3 R EC050926
K08E09B C2010 02 13.38155 11 52 50.94 +10 12 33.6 20.4 R EC050926
K08E09B C2010 02 13.38637 11 52 50.54 +10 12 26.4 20.6 R EC050926
Observer details:
926 Tenagra II Observatory. Observers P. R. Holvorcem, M. Schwartz. Measurer
P. R. Holvorcem. 0.81-m f/7 Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
100212 926 15.1+ 14.6- 100213 926 16.4+ 15.9- MPO139292 -0.0037 day
Orbital elements:
2008 EB9 Earth MOID = 0.3450 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 283.77156 (2000.0) P Q
n 0.50446837 Peri. 251.26719 -0.58087245 +0.80599112
a 1.5628361 Node 341.77675 -0.53933913 -0.48586485
e 0.2171739 Incl. 21.35314 -0.60967246 -0.33810304
P 1.95 H 20.4 G 0.15 U 3
Residuals in seconds of arc
080308 691 0.1- 0.0 080309 J95 0.8+ 0.3+ 080327 291 0.1+ 0.1+
080308 691 0.1+ 0.0 080309 J95 0.4+ 0.3- 080327 291 0.3- 0.3-
080308 691 0.2- 0.2- 080309 J95 0.3+ 0.1- 080330 291 0.3- 0.4+
080308 734 0.3- 0.3- 080309 246 0.1- 0.6+ 080330 291 0.0 0.1-
080308 734 0.0 0.5- 080309 246 0.2+ 0.1+ 080330 291 0.0 0.1-
080308 734 0.3- 0.4- 080309 246 0.5+ 0.3- 080331 291 0.2+ 0.1-
080308 711 0.2- 1.4+ 080310 691 0.0 0.7+ 080331 291 0.1+ 0.2+
080308 734 0.0 0.0 080310 691 0.2- 0.5- 080331 291 1.1+ 1.0-
080308 711 0.5+ 1.3+ 080310 691 0.4- 0.0 080401 291 0.5- 0.6-
080308 711 0.3- 0.5- 080310 854 1.2- 0.3+ 080401 291 0.5- 0.1+
080308 246 1.8+ 0.8+ 080310 854 1.0- 0.1- 080401 291 0.4+ 0.3+
080308 246 0.5+ 1.3+ 080310 854 0.8+ 1.1+ 080405 291 0.0 0.3+
080308 246 1.2+ 0.5+ 080310 291 0.0 0.0 080405 291 0.2- 0.2+
080308 246 0.1+ 0.3- 080310 291 0.3- 0.3- 080405 291 0.3+ 0.2+
080309 H55 0.0 0.0 080311 691 0.1- 0.3+ 080425 291 0.4+ 0.2+
080309 H55 0.1+ 0.1+ 080311 691 0.0 0.1- 080425 291 1.1- 0.1+
080309 291 0.1+ 0.1- 080311 691 0.5- 0.3+ 080425 291 0.4+ 0.1-
080309 H55 0.3+ 0.0 080311 291 0.3- 0.2- 100212 926 0.0 0.7+
080309 291 0.5- 0.3- 080311 291 0.7- 0.3- 100212 926 0.3- 0.6+
080309 291 0.1+ 0.5- 080311 291 0.1+ 0.3+ 100212 926 0.6- 0.5+
080309 G96 0.5+ 0.3- 080325 H55 0.3- 0.6+ 100213 926 0.5+ 0.0
080309 G96 0.2+ 0.3- 080325 H55 0.0 0.3- 100213 926 0.6+ 0.2-
080309 G96 0.3+ 0.1- 080325 H55 0.5+ 0.0 100213 926 1.0+ 0.4-
080309 G96 0.0 0.3- 080327 291 0.0 0.0
Ephemeris:
2008 EB9 a,e,i = 1.56, 0.22, 21 q = 1.2234
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2010 02 13 11 53.36 +10 22.0 0.495 1.433 148.6 21.1 20.7
2010 02 23 11 35.60 +05 45.7 0.429 1.403 161.8 12.7 20.1
2010 03 05 11 09.58 -00 00.2 0.385 1.375 173.5 4.7 19.4
2010 03 15 10 38.45 -06 27.5 0.365 1.347 162.6 12.7 19.6
2010 03 25 10 08.14 -12 39.1 0.369 1.321 146.7 24.5 20.0
2010 04 04 09 44.16 -17 52.1 0.391 1.298 132.7 34.5 20.4
2010 04 14 09 28.96 -22 01.1 0.425 1.276 121.4 42.1 20.7
2010 04 24 09 22.52 -25 24.7 0.462 1.258 112.7 47.5 21.0
2010 05 04 09 23.59 -28 23.1 0.500 1.244 106.1 51.1 21.3
2010 05 14 09 30.96 -31 09.7 0.536 1.233 101.2 53.5 21.5
2010 05 24 09 43.89 -33 53.4 0.568 1.226 97.8 54.9 21.6
2010 06 03 10 01.90 -36 38.2 0.595 1.223 95.4 55.6 21.7
2010 06 13 10 25.05 -39 23.6 0.619 1.225 93.9 55.8 21.8
2010 06 23 10 53.74 -42 07.0 0.640 1.231 93.2 55.5 21.9
2010 07 03 11 28.37 -44 40.3 0.659 1.241 93.1 54.9 22.0
2010 07 13 12 09.35 -46 51.2 0.679 1.255 93.3 54.0 22.0
Gareth V. Williams (C) Copyright 2010 MPC M.P.E.C. 2010-C50
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