MPEC 2008-P22 : 2004 SB56
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M.P.E.C. 2008-P22 Issued 2008 Aug. 4, 22:51 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
2004 SB56
Revision to MPEC 2004-S64
Additional Observations:
K04S56B C2008 08 03.94986 03 58 13.06 +84 23 52.3 EP022J95
K04S56B C2008 08 03.95075 03 58 08.64 +84 24 04.1 EP022J95
K04S56B C2008 08 03.95159 03 58 04.70 +84 24 14.5 16.7 R EP022J95
K04S56B C2008 08 04.92020 01 24 30.83 +87 00 16.6 EP022J95
K04S56B C2008 08 04.92316 01 23 44.29 +87 00 32.7 EP022J95
K04S56B C2008 08 04.92422 01 23 27.72 +87 00 38.4 EP022J95
K04S56B C2008 08 04.92545 01 23 08.19 +87 00 45.0 EP022J95
K04S56B C2008 08 04.92659 01 22 50.37 +87 00 51.0 16.9 R EP022J95
Observer details:
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 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
080803 J95 0.03- 0.04- 080804 J95 0.00+ 0.05- MPO 74366 -0.0039 day
Orbital elements:
2004 SB56 Earth MOID = 0.0527 AU
Epoch 2008 May 14.0 TT = JDT 2454600.5 MPC
M 17.36059 (2000.0) P Q
n 1.22332831 Peri. 233.46567 -0.96110752 -0.05022781
a 0.8658461 Node 302.12670 +0.19370451 -0.82349524
e 0.2376240 Incl. 18.70355 -0.19685248 -0.56509535
P 0.81 H 19.3 G 0.15 U 3
Residuals in seconds of arc
040925 699 0.3- 1.0+ 041001 176 0.5+ 0.1- 041031 734 0.3- 1.1+
040925 699 0.5+ 1.0+ 041001 176 0.3+ 0.1- 041031 734 0.5+ 0.9-
040925 699 0.5+ 0.1- 041001 176 0.1+ 0.2- 041031 734 0.9+ 1.4-
040925 699 0.6+ 0.7- 041001 176 0.0 0.2- 041031 734 (4.1- 3.2-)
040925 176 0.3+ 0.1+ 041004 J95 0.2- 0.3- 041117 587 0.2- 0.7+
040925 176 0.8+ 0.3+ 041004 J95 0.3- 0.1- 041117 587 0.3+ 0.2-
040925 176 0.4+ 0.1+ 041004 J95 1.0- 0.2- 041120 240 0.2- 0.1+
040925 176 0.5+ 0.2- 041008 696 0.0 0.2- 041120 240 0.1- 0.1+
040926 699 0.2- 0.5- 041008 696 0.1+ 0.2- 041120 240 0.4- 0.1+
040926 699 0.4- 0.5+ 041008 J95 0.4+ 0.2+ 041120 240 0.5- 0.1-
040926 699 0.8- 0.8- 041008 J95 0.3+ 0.2+ 080803 J95 0.2+ 0.0
040926 699 1.0- 0.8+ 041008 J95 0.2+ 0.2+ 080803 J95 0.1- 0.2+
040926 734 0.2+ 0.1+ 041012 938 0.0 0.5+ 080803 J95 0.0 0.2-
040926 734 0.0 0.1- 041012 938 (1.8+ 0.4+) 080804 J95 0.1- 0.0
040926 734 0.7- 0.3- 041013 J95 0.2+ 0.1+ 080804 J95 0.1- 0.0
040926 734 0.1- 0.1- 041013 J95 0.3- 0.2+ 080804 J95 0.0 0.0
040926 734 0.2- 0.1+ 041017 587 0.9+ 0.9- 080804 J95 0.1- 0.0
040926 734 0.3- 1.0- 041017 587 0.4+ 0.4+ 080804 J95 0.1+ 0.1-
041001 176 0.7+ 0.1- 041017 587 0.5+ 0.2-
Ephemeris:
2004 SB56 a,e,i = 0.87, 0.24, 19 q = 0.6601
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2008 08 02 05 10.82 +76 23.7 0.0691 0.987 64.8 111.6 17.7
2008 08 12 18 29.07 +71 36.8 0.106 1.016 88.4 85.6 17.5
2008 08 22 18 14.26 +58 13.1 0.155 1.039 95.9 75.6 18.0
2008 09 01 18 13.48 +50 56.1 0.204 1.056 97.6 71.4 18.5
2008 09 11 18 17.61 +46 07.3 0.251 1.067 97.0 69.5 18.9
2008 09 21 18 24.72 +42 33.8 0.293 1.071 95.2 68.9 19.2
2008 10 01 18 34.14 +39 43.5 0.331 1.070 92.9 69.1 19.5
2008 10 11 18 45.55 +37 23.7 0.361 1.063 90.2 69.9 19.7
2008 10 21 18 58.40 +35 26.1 0.384 1.049 87.2 71.4 19.8
2008 10 31 19 12.43 +33 42.8 0.398 1.030 84.0 73.4 19.9
2008 11 10 19 27.28 +32 07.9 0.402 1.005 80.4 76.3 20.0
2008 11 20 19 42.35 +30 30.4 0.396 0.974 76.4 80.3 20.0
2008 11 30 19 57.03 +28 32.9 0.379 0.938 71.6 85.8 20.1
2008 12 10 20 10.23 +25 46.8 0.352 0.898 65.6 93.5 20.1
Timothy B. Spahr (C) Copyright 2008 MPC M.P.E.C. 2008-P22
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