MPEC 2009-A23 : 2008 RE80
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M.P.E.C. 2009-A23 Issued 2009 Jan. 3, 13:15 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 RE80
Revision to MPEC 2008-R68
Additional Observations:
K08R80E & 1950 05 19.26944 14 29 12.86 +49 56 46.5 EA023260
K08R80E & 1950 05 19.30069 14 29 17.37 +49 56 30.2 EA023260
K08R80E C2001 10 28.40816 03 38 34.50 -04 05 20.0 19.0 R EA023644
K08R80E C2001 10 28.41972 03 38 33.61 -04 05 34.2 19.2 R EA023644
Observer details:
260 Siding Spring-DSS. Measurer R. Matson. 1.2-m Schmidt.
644 Palomar Mountain/NEAT. Observers E. F. Helin, S. Pravdo, K. Lawrence,
K. Kuluhiwa, M. Hicks. Measurer R. Matson. 1.2-m Schmidt + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
500519 260 1.13+ 0.13+ 011028 644 0.03+ 0.00+ MPO149041 +0.011 day
Orbital elements:
2008 RE80 Earth MOID = 0.1350 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 179.38322 (2000.0) P Q
n 0.54645013 Peri. 26.08607 -0.88231496 +0.47054623
a 1.4817298 Node 182.07151 -0.46611924 -0.87663262
e 0.2460416 Incl. 16.59369 -0.06521636 -0.10050618
P 1.80 H 18.2 G 0.15 U 2
Residuals in seconds of arc
500519 260 1.6+ 2.3+ 080920 G96 0.0 0.2- 081002 G96 0.3+ 0.3-
500519 260 1.7- 1.8- 080922 H55 0.1+ 0.1- 081002 G96 0.2+ 0.2-
011028 644 0.8+ 0.3+ 080922 H55 0.0 0.1+ 081009 448 0.2- 0.2-
011028 644 0.6+ 0.5- 080922 H55 0.2- 0.1+ 081009 448 0.2- 1.0+
080911 621 0.1- 0.5- 080922 H55 0.1+ 0.1- 081009 448 0.4- 0.7-
080911 621 0.2+ 0.3- 080923 448 0.6- 0.3- 081017 H55 0.4- 0.1-
080911 621 0.4- 0.7- 080925 H55 0.1+ 0.1+ 081017 H55 0.3+ 0.1+
080914 621 0.1+ 0.1- 080925 H55 0.3+ 0.1- 081017 448 0.2- 0.1+
080914 621 0.8+ 0.0 080925 H55 0.0 0.1+ 081017 448 0.3- 0.6-
080914 621 0.6+ 0.4- 080925 H55 0.1+ 0.1+ 081017 448 0.3+ 0.3-
080915 673 0.1+ 0.0 080928 H55 0.0 0.3+ 081023 304 0.1- 0.2-
080915 673 0.1- 0.2+ 080928 H55 0.1- 0.1+ 081023 304 0.0 0.1-
080915 673 0.3+ 0.0 080928 704 0.6- 1.2+ 081023 304 0.2- 0.3-
080915 673 0.5+ 0.3+ 080928 704 0.2+ 0.6+ 081023 304 0.0 0.2-
080917 H55 0.3- 0.2- 080928 704 0.5- 0.9+ 081023 304 0.0 0.2-
080917 H55 0.1+ 0.0 080928 704 0.5- 1.1+ 081023 304 0.1- 0.2-
080917 H55 0.3+ 0.1- 080928 704 0.1- 1.2+ 081031 H55 0.5- 0.3+
080918 H55 0.5- 0.2- 080929 448 0.5+ 0.2- 081124 291 0.1- 0.3+
080918 H55 0.1- 0.1+ 080929 448 0.2+ 0.2- 081124 291 0.0 0.0
080918 H55 0.0 0.2+ 080929 448 0.6+ 0.1- 081124 291 0.3- 0.3-
080918 448 0.1+ 0.1- 081001 H55 0.1- 0.1+ 090101 291 0.1- 0.2+
080918 448 0.1- 0.0 081001 H55 0.2+ 0.0 090101 291 0.1- 0.0
080920 G96 0.0 0.2- 081001 H55 0.0 0.0 090101 291 0.4- 0.1+
080920 G96 0.3+ 0.2- 081002 G96 0.0 0.4-
080920 G96 0.1+ 0.2- 081002 G96 0.4+ 0.3-
Ephemeris:
2008 RE80 a,e,i = 1.48, 0.25, 17 q = 1.1172
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 12 30 00 32.52 -08 22.3 1.628 1.837 85.7 32.3 21.9
2009 01 09 00 46.29 -07 00.5 1.736 1.830 79.3 31.9 22.1
2009 01 19 01 01.35 -05 29.4 1.839 1.821 73.4 31.2 22.2
2009 01 29 01 17.54 -03 51.4 1.936 1.809 67.8 30.3 22.2
2009 02 08 01 34.75 -02 09.0 2.024 1.796 62.5 29.1 22.3
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-A23
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