MPEC 2006-X28 : 1999 CW8
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M.P.E.C. 2006-X28 Issued 2006 Dec. 9, 12:24 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://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 CW8
Revision to MPEC 1999-C32
Additional Observations:
J99C08W 2C2006 10 25.26953922 07 52.715+24 00 33.95 23.3 R EX028568
J99C08W 2C2006 10 25.27325522 07 52.652+24 00 32.17 23.2 R EX028568
J99C08W 2C2006 10 25.27696622 07 52.586+24 00 30.25 22.9 R EX028568
J99C08W 2C2006 10 25.28067122 07 52.518+24 00 28.46 22.9 R EX028568
J99C08W 2C2006 11 28.25206922 14 15.463+20 38 30.49 EX028568
J99C08W 2C2006 11 28.28505722 14 16.524+20 38 23.97 24.0 R EX028568
J99C08W 2C2006 11 28.29230922 14 16.763+20 38 22.55 EX028568
J99C08W 2C2006 11 28.29946522 14 17.000+20 38 21.03 EX028568
Observer details:
568 Mauna Kea. Observer F. Bernardi. Measurers F. Bernardi, D. J. Tholen.
2.24-m University of Hawaii reflector + 2048 CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
061025 568 0.8- 0.9- 061128 568 0.6- 0.8- MPO 50402 +0.0016 day
Orbital elements:
1999 CW8 Earth MOID = 0.2328 AU
Epoch 2006 Sept. 22.0 TT = JDT 2454000.5 MPC
M 77.74337 (2000.0) P Q
n 0.29462816 Peri. 262.01885 -0.66193300 +0.64810133
a 2.2367625 Node 317.20012 -0.25001677 -0.66452466
e 0.5981888 Incl. 33.65870 -0.70663733 -0.37198339
P 3.35 H 18.5 G 0.15 U 1
Residuals in seconds of arc
990212 704 0.6+ 0.1- 990214 422 0.1+ 0.1- 990225 658 0.1- 0.7-
990212 704 0.1+ 0.7+ 990214 422 0.2- 0.2+ 990225 658 0.1+ 0.3+
990212 704 0.9+ 0.2+ 990214 422 0.2+ 0.2- 990225 587 1.7- 0.6+
990212 704 0.9+ 0.1- 990214 900 0.8- 0.9- 990225 587 0.6- 0.2-
990212 704 1.7+ 0.7- 990214 587 0.3- 0.0 990316 422 0.0 0.9+
990213 704 0.6+ 0.4- 990214 587 0.2- 0.3+ 990316 422 0.4+ 0.3+
990213 670 0.8+ 2.0- 990215 046 0.3- 0.2- 990316 422 0.5+ 0.5+
990213 670 0.5+ 0.1- 990215 046 1.0- 0.4+ 990624 426 0.7- 1.1-
990213 704 0.1+ 0.3+ 990215 046 0.3+ 0.0 990624 426 0.1+ 0.5-
990213 713 2.0+ 1.3+ 990215 046 0.1+ 0.1- 990624 426 0.1+ 0.0
990213 670 0.5+ 0.0 990215 046 0.6- 0.4+ 990624 426 0.5- 0.5+
990213 670 0.4- 1.7- 990215 118 0.1- 0.1- 990702 413 0.4- 0.1-
990213 704 0.8+ 0.7+ 990215 118 0.5- 0.4- 990702 413 0.3- 0.1+
990213 670 2.3- 1.1- 990215 118 0.8- 0.4- 990702 413 0.2- 0.2-
990213 713 0.7- 0.3+ 990216 704 0.5+ 1.4+ 990804 413 0.0 0.4+
990213 704 0.5+ 1.3- 990216 704 (0.9+ 3.1+) 990804 413 0.1+ 0.4+
990213 704 0.7+ 0.3+ 990216 704 0.3+ 1.2+ 990812 699 0.9+ 0.3-
990213 422 0.1+ 0.5- 990216 704 0.8+ 0.2+ 990812 699 1.8+ 1.4-
990213 422 0.3+ 0.3- 990216 426 0.7- 0.3+ 990812 699 1.9+ 1.4-
990213 422 0.0 0.5- 990216 426 0.5- 0.5+ 990901 413 0.1- 0.2+
990213 422 0.1- 0.3- 990216 426 0.9- 0.6- 990901 413 0.2+ 0.1-
990213 355 0.5+ 0.6- 990216 402 0.2- 0.6+ 061025 568 0.0 0.0
990213 355 0.3+ 0.8- 990216 402 0.6- 0.6+ 061025 568 0.0 0.1+
990213 355 0.2+ 1.1- 990216 402 0.3- 0.5+ 061025 568 0.0 0.0
990214 758 (3.2- 3.1-) 990218 104 1.2+ 0.6+ 061025 568 0.0 0.0
990214 758 1.3+ 1.2+ 990218 104 0.2+ 0.1+ 061128 568 0.0 0.2-
990214 658 0.2+ 0.0 990218 104 0.9- 0.5+ 061128 568 0.1- 0.0
990214 658 0.1- 0.3- 990219 402 1.2- 1.2- 061128 568 0.0 0.0
990214 658 0.1+ 0.3- 990219 402 0.8- 0.1- 061128 568 0.0 0.0
990214 719 0.7- 0.5+ 990219 402 0.7- 0.2-
990214 900 1.4+ 0.2+ 990225 658 0.2- 0.1-
Ephemeris:
1999 CW8 a,e,i = 2.24, 0.60, 34 q = 0.8988
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2006 12 01 22 15.85 +20 30.0 2.775 3.024 95.0 19.0 24.1
2006 12 06 22 19.05 +20 17.7 2.862 3.045 91.1 18.9 24.2
2006 12 11 22 22.61 +20 09.3 2.948 3.065 87.4 18.7 24.2
2006 12 16 22 26.50 +20 04.6 3.034 3.084 83.6 18.5 24.3
2006 12 21 22 30.68 +20 03.6 3.119 3.103 80.0 18.2 24.4
2006 12 26 22 35.13 +20 06.2 3.203 3.122 76.4 17.8 24.4
2006 12 31 22 39.81 +20 12.2 3.286 3.140 72.9 17.4 24.5
2007 01 05 22 44.70 +20 21.4 3.367 3.158 69.4 16.9 24.5
2007 01 10 22 49.77 +20 33.6 3.446 3.176 66.0 16.4 24.6
2007 01 15 22 55.01 +20 48.7 3.523 3.193 62.6 15.9 24.6
2007 01 20 23 00.39 +21 06.6 3.598 3.209 59.3 15.3 24.7
Timothy B. Spahr (C) Copyright 2006 MPC M.P.E.C. 2006-X28
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