MPEC 2008-Y17 : 2008 AV28
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M.P.E.C. 2008-Y17 Issued 2008 Dec. 20, 21:21 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 AV28
Revision to MPEC 2008-A56
Additional Observations:
K08A28V C2008 12 19.83657 22 52 45.79 +19 56 47.1 EY017493
K08A28V C2008 12 19.84063 22 52 47.02 +19 56 51.5 20.3 C EY017493
K08A28V C2008 12 19.84468 22 52 48.18 +19 56 55.3 20.4 C EY017493
K08A28V C2008 12 20.78099 22 57 26.48 +20 12 41.0 20.4 C EY017493
K08A28V C2008 12 20.78504 22 57 27.66 +20 12 45.3 20.6 C EY017493
K08A28V C2008 12 20.78910 22 57 28.85 +20 12 49.1 20.5 C EY017493
Observer details:
493 Calar Alto. Observer F. Hormuth. 1.23-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
081219 493 20.9+ 27.8+ 081220 493 21.2+ 27.4+ MPO136013 -0.0088 day
Orbital elements:
2008 AV28 Earth MOID = 0.2243 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 49.45115 (2000.0) P Q
n 0.75962540 Peri. 5.85006 +0.64629722 +0.73156936
a 1.1896058 Node 304.63634 -0.71037777 +0.47293451
e 0.3367365 Incl. 15.29503 -0.27868139 +0.49105928
P 1.30 H 19.5 G 0.15 U 3
Residuals in seconds of arc
071219 G96 0.2- 0.3+ 080116 291 0.2- 0.2+ 080203 246 0.3+ 0.3-
071219 G96 0.3+ 0.2+ 080116 291 0.2- 0.2+ 080207 448 0.3+ 0.2-
071219 G96 0.3+ 0.2+ 080118 291 0.2- 0.3+ 080207 448 0.3+ 0.2-
080111 691 0.3- 0.1- 080118 291 0.4- 0.1+ 080207 448 0.4+ 0.3-
080111 691 0.1+ 0.1- 080118 291 0.1- 0.2+ 080216 H55 0.1- 0.3+
080111 691 0.3+ 0.1+ 080120 691 0.3- 0.0 080216 H55 0.1+ 0.3+
080112 G96 0.5+ 0.3- 080120 691 0.0 0.3- 080216 H55 0.4- 0.1-
080112 G96 0.7+ 0.3- 080120 691 0.5- 0.5- 080224 H55 0.5+ 0.2+
080112 H55 0.2+ 0.1+ 080128 H55 0.0 0.0 080224 H55 0.7+ 0.7+
080112 H55 0.1- 0.3- 080128 H55 0.1- 0.4- 080224 H55 0.4- 0.2+
080112 G96 0.9+ 0.3- 080128 H55 0.5+ 0.2- 080228 H55 (1.8+ 0.0 )
080112 H55 0.6+ 1.0+ 080130 291 0.3- 0.2+ 080228 H55 (2.6+ 0.1-)
080112 G96 0.5+ 0.3- 080130 291 0.4- 0.1+ 081219 493 0.2- 0.1-
080112 291 0.7+ 0.5- 080130 291 0.2- 0.0 081219 493 0.3+ 0.2+
080112 291 0.3+ 0.4+ 080203 246 0.3+ 0.0 081219 493 0.2- 0.1-
080112 291 0.1- 0.3+ 080203 246 0.7+ 0.8- 081220 493 0.1+ 0.2-
080115 691 0.2+ 0.0 080203 246 0.6+ 0.4- 081220 493 0.0 0.1+
080115 691 0.4- 0.1- 080203 246 0.9+ 0.6- 081220 493 0.1+ 0.0
080115 691 0.0 0.0 080203 246 1.0+ 0.3+
080116 291 0.3- 0.2+ 080203 246 1.2+ 0.7-
Ephemeris:
2008 AV28 a,e,i = 1.19, 0.34, 15 q = 0.7890
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 12 20 22 53.58 +19 59.6 0.678 1.146 85.2 58.8 21.1
2008 12 30 23 41.45 +22 23.6 0.744 1.200 86.9 54.9 21.3
2009 01 09 00 25.70 +24 03.7 0.824 1.252 87.2 51.7 21.5
2009 01 19 01 06.36 +25 11.2 0.914 1.300 86.4 49.1 21.7
2009 01 29 01 43.86 +25 55.6 1.013 1.345 84.6 46.8 21.9
Gareth V. Williams (C) Copyright 2008 MPC M.P.E.C. 2008-Y17
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