MPEC 2008-S18 : 2008 RG98
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M.P.E.C. 2008-S18 Issued 2008 Sept. 21, 01:00 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 RG98
Observations:
K08R98G* C2008 09 09.37566 01 06 12.81 +15 46 13.6 20.8 V ES018691
K08R98G C2008 09 09.39329 01 06 11.68 +15 46 14.8 20.4 V ES018691
K08R98G C2008 09 09.41090 01 06 10.55 +15 46 16.1 20.3 V ES018691
K08R98G C2008 09 20.19663 00 52 25.06 +15 47 51.3 19.7 V ES018691
K08R98G C2008 09 20.21177 00 52 23.64 +15 47 50.3 19.8 V ES018691
K08R98G C2008 09 20.22689 00 52 22.21 +15 47 48.8 19.9 V ES018691
K08R98G C2008 09 20.27193 00 52 17.96 +15 47 46.0 20.0 V ES018291
K08R98G C2008 09 20.27634 00 52 17.54 +15 47 45.5 19.8 V ES018291
K08R98G C2008 09 20.28021 00 52 17.18 +15 47 45.4 19.8 V ES018291
K08R98G 5C2008 09 20.34329 00 52 11.27 +15 47 41.0 19.8 R ES018673
K08R98G C2008 09 20.34815 00 52 10.82 +15 47 41.2 19.7 R ES018854
K08R98G 5C2008 09 20.35035 00 52 10.58 +15 47 40.2 ES018673
K08R98G C2008 09 20.35391 00 52 10.06 +15 47 40.9 19.7 R ES018854
K08R98G C2008 09 20.35967 00 52 09.62 +15 47 39.4 19.2 R ES018854
K08R98G 5C2008 09 20.36319 00 52 09.36 +15 47 39.3 ES018673
K08R98G C2008 09 20.36383 00 52 09.18 +15 47 37.9 19.6 R ES018H36
K08R98G 5C2008 09 20.36910 00 52 08.79 +15 47 38.7 ES018673
K08R98G C2008 09 20.37368 00 52 08.16 +15 47 37.4 19.5 R ES018H36
K08R98G C2008 09 20.37810 00 52 07.80 +15 47 37.0 19.2 R ES018H36
K08R98G C2008 09 20.37887 00 52 07.79 +15 47 38.2 19.7 V ES018291
K08R98G C2008 09 20.38284 00 52 07.41 +15 47 37.8 19.7 V ES018291
K08R98G C2008 09 20.38689 00 52 07.02 +15 47 37.4 19.7 V ES018291
K08R98G C2008 09 20.47588 00 51 58.55 +15 47 30.3 ES018291
K08R98G C2008 09 20.48000 00 51 58.16 +15 47 30.0 ES018291
K08R98G C2008 09 20.48441 00 51 57.73 +15 47 29.6 ES018291
K08R98G C2008 09 20.87761 00 51 21.58 +15 46 54.7 ES018J95
K08R98G C2008 09 20.88327 00 51 21.01 +15 46 53.7 ES018J95
K08R98G C2008 09 20.88894 00 51 20.49 +15 46 53.6 19.5 R ES018J95
Observer details:
291 LPL/Spacewatch II. Observers A. F. Tubbiolo, R. S. McMillan. 1.8-m f/2.7
reflector + CCD.
673 Table Mountain Observatory, Wrightwood. Observer J. Young. 0.61-m f/16
Cassegrain + CCD.
691 Steward Observatory, Kitt Peak. Observers R. S. McMillan, A. F. Tubbiolo,
R. Araiza, T. A. Craney, I. M. Florence, J. V. Scotti. 0.9-m f/3
reflector + CCD.
854 Sabino Canyon Observatory, Tucson. Observer J. E. McGaha. 0.36-m f/10.0
Schmidt-Cassegrain + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2008 RG98 Earth MOID = 0.1733 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 335.06602 (2000.0) P Q
n 0.31983842 Peri. 168.97177 -0.85415224 -0.51610614
a 2.1176246 Node 339.57109 +0.46214745 -0.69720639
e 0.7545636 Incl. 10.51623 +0.23841915 -0.49753160
P 3.08 H 17.2 G 0.15 U 8
Residuals in seconds of arc
080909 691 0.1+ 0.2+ 080920 854 1.6+ 0.7+ 080920 291 0.1+ 0.0
080909 691 0.0 0.0 080920 673 0.4+ 0.2+ 080920 291 0.0 0.1-
080909 691 0.1- 0.2- 080920 854 1.4- 0.9+ 080920 291 0.0 0.3+
080920 691 0.1- 0.1+ 080920 854 0.1+ 0.2- 080920 291 0.0 0.3+
080920 691 0.1- 0.1+ 080920 673 0.5+ 0.2+ 080920 291 0.1- 0.3+
080920 691 0.2- 0.4- 080920 H36 0.9+ 0.5- 080920 J95 0.2+ 0.1+
080920 291 0.1- 0.1- 080920 673 0.4+ 0.1+ 080920 J95 0.3- 0.4-
080920 291 0.1- 0.3- 080920 H36 0.3- 0.2- 080920 J95 0.0 0.1-
080920 291 0.0 0.1- 080920 H36 0.6+ 0.2-
080920 673 0.7+ 0.4+ 080920 291 0.1+ 0.1+
Ephemeris:
2008 RG98 a,e,i = 2.12, 0.75, 11 q = 0.5197
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 09 21 00 51.16 +15 46.8 1.168 2.133 158.2 10.0 19.8
2008 10 01 00 33.14 +15 16.7 1.053 2.043 167.9 5.9 19.3
2008 10 11 00 11.43 +14 13.8 0.967 1.948 164.8 7.7 19.1
2008 10 21 23 48.20 +12 41.5 0.912 1.850 151.7 14.8 19.2
2008 10 31 23 26.23 +10 51.9 0.884 1.747 137.1 22.8 19.2
2008 11 10 23 08.02 +09 03.2 0.876 1.639 122.8 30.5 19.3
2008 11 20 22 54.92 +07 30.9 0.880 1.527 109.5 37.6 19.4
2008 11 30 22 47.17 +06 23.8 0.887 1.409 97.5 43.9 19.4
2008 12 10 22 44.30 +05 44.5 0.887 1.287 86.7 49.8 19.3
2008 12 20 22 45.39 +05 30.4 0.874 1.159 76.9 55.8 19.3
2008 12 30 22 49.32 +05 35.3 0.843 1.026 67.9 62.6 19.1
2009 01 09 22 54.50 +05 46.6 0.787 0.891 59.2 71.5 18.9
2009 04 09 21 10.60 -29 16.8 0.917 1.081 68.4 59.5 19.3
2009 04 19 21 18.04 -29 43.2 0.950 1.211 76.6 53.7 19.5
2009 04 29 21 22.10 -30 23.1 0.964 1.337 85.4 48.6 19.6
2009 05 09 21 21.82 -31 21.8 0.965 1.458 95.2 43.6 19.6
2009 05 19 21 16.35 -32 40.4 0.959 1.573 105.9 38.2 19.6
2009 05 29 21 04.87 -34 14.9 0.953 1.684 117.7 32.2 19.6
2009 06 08 20 47.07 -35 53.2 0.956 1.789 130.4 25.6 19.5
2009 06 18 20 23.71 -37 16.8 0.974 1.890 143.6 18.6 19.5
2009 06 28 19 56.99 -38 07.0 1.016 1.987 155.8 12.1 19.5
2009 07 08 19 30.38 -38 13.7 1.085 2.080 163.6 7.9 19.5
2009 07 18 19 07.13 -37 41.5 1.182 2.169 161.0 8.8 19.8
2009 07 28 18 49.18 -36 43.9 1.307 2.254 151.8 12.3 20.3
2009 08 07 18 37.04 -35 35.2 1.456 2.336 141.4 15.7 20.7
2009 08 17 18 30.17 -34 25.7 1.624 2.414 131.3 18.4 21.1
2009 08 27 18 27.75 -33 20.4 1.807 2.490 121.6 20.2 21.5
2009 09 06 18 28.92 -32 21.1 2.001 2.562 112.5 21.3 21.8
2009 09 16 18 32.91 -31 27.7 2.204 2.631 103.8 21.8 22.1
Timothy B. Spahr (C) Copyright 2008 MPC M.P.E.C. 2008-S18
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