MPEC 2010-O13 : 2002 AC9
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M.P.E.C. 2010-O13 Issued 2010 July 20, 20:20 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
2002 AC9
Revision to MPEC 2002-A67
Additional Observations:
K02A09C C2010 07 19.75153 20 11 33.02 -32 49 42.3 18.6 R EO013D21
K02A09C C2010 07 19.75624 20 11 32.51 -32 49 50.8 18.6 R EO013D21
K02A09C C2010 07 20.76340 20 09 53.06 -33 19 10.9 18.5 R EO013D21
K02A09C C2010 07 20.77263 20 09 51.96 -33 19 26.9 18.4 R EO013D21
K02A09C C2010 07 20.78182 20 09 50.93 -33 19 43.4 18.5 R EO013D21
K02A09C C2010 07 20.79102 20 09 49.76 -33 19 58.8 18.6 R EO013D21
K02A09C C2010 07 20.80016 20 09 48.71 -33 20 15.1 18.6 R EO013D21
K02A09C C2010 07 20.80937 20 09 47.64 -33 20 31.0 18.3 R EO013D21
Observer details:
D21 Shenton Park. Observers P. Luckas, P. R. Holvorcem. Measurer
P. R. Holvorcem. 0.35-m f/8.6 Schmidt-Cassegrain + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
100719 D21 1.18+ 0.16+ 100720 D21 1.24+ 0.15+ MPO 30604 -0.27 day
Orbital elements:
2002 AC9 PHA, Earth MOID = 0.0290 AU
Epoch 2010 July 23.0 TT = JDT 2455400.5 MPC
M 329.74488 (2000.0) P Q
n 0.44356546 Peri. 28.23785 +0.85685987 -0.51554572
a 1.7028023 Node 2.79836 +0.46520743 +0.77156124
e 0.5607086 Incl. 2.27924 +0.22220084 +0.37270077
P 2.22 H 20.9 G 0.15 U 2
Residuals in seconds of arc
020109 704 0.5+ 0.4+ 020113 691 0.1+ 0.1- 020210 715 0.8- 0.4-
020109 704 0.4- 0.3- 020113 691 0.4- 0.1+ 020210 715 0.5- 0.4-
020109 704 0.2+ 0.9- 020113 413 0.3- 0.2+ 020210 715 0.6+ 0.5-
020109 704 0.7+ 0.5+ 020113 413 0.3- 0.2- 020214 696 0.3+ 0.1-
020111 704 0.6+ 1.8+ 020113 413 0.4- 0.1- 020214 696 0.4- 0.2-
020111 704 0.6+ 1.5+ 020118 649 0.1+ 1.0- 020305 291 0.2- 0.2-
020111 704 0.2+ 0.4+ 020118 649 0.2+ 1.0- 020305 291 0.1- 0.2+
020111 413 0.0 0.2+ 020118 649 0.1+ 0.7- 020305 291 0.3- 0.8+
020111 413 0.6+ 0.5- 020121 649 0.4+ 0.7- 100719 D21 0.5+ 0.3+
020111 413 0.0 0.3+ 020121 649 0.8+ 1.8- 100719 D21 0.7+ 0.5-
020112 711 (3.6- 1.1+) 020121 649 0.8+ 0.9- 100720 D21 0.8- 0.1+
020112 711 (3.1- 1.1+) 020122 046 0.1- 0.3- 100720 D21 0.6- 0.3+
020112 711 1.7- 1.3+ 020122 046 0.2- 1.0+ 100720 D21 0.4+ 0.2-
020113 735 1.0- 0.0 020122 046 0.2- 0.6+ 100720 D21 0.5- 0.4+
020113 735 (4.8+ 0.6-) 020122 046 0.7+ 0.8+ 100720 D21 0.0 0.0
020113 691 0.1+ 0.3- 020122 046 0.8+ 0.2+ 100720 D21 0.3+ 0.0
Ephemeris:
2002 AC9 a,e,i = 1.70, 0.56, 2 q = 0.7480
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2010 07 13 20 19.13 -30 15.7 0.265 1.276 165.8 11.2 19.2
2010 07 18 20 14.06 -32 03.2 0.219 1.231 167.6 10.2 18.7
2010 07 23 20 05.56 -34 32.6 0.176 1.187 165.6 12.3 18.2
2010 07 28 19 50.68 -38 14.1 0.134 1.142 159.2 18.4 17.8
2010 08 02 19 20.45 -44 14.6 0.0963 1.098 147.9 29.4 17.3
2010 08 07 17 54.82 -54 21.9 0.0631 1.054 127.2 50.0 16.9
2010 08 12 13 19.53 -53 07.1 0.0440 1.010 84.5 93.0 17.4
Sonia Keys (C) Copyright 2010 MPC M.P.E.C. 2010-O13
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