MPEC 2006-Y75 : 1999 NW2
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M.P.E.C. 2006-Y75 Issued 2006 Dec. 31, 18:31 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 NW2
Revision to MPEC 1999-N34
Additional Observations:
J99N02W 2C2006 12 25.24374723 38 22.935+11 34 03.55 EY075568
J99N02W 2C2006 12 25.25105923 38 24.816+11 34 09.09 24.1 R EY075568
J99N02W 2C2006 12 25.25850823 38 26.736+11 34 14.39 EY075568
J99N02W 2C2006 12 25.26592123 38 28.652+11 34 19.88 EY075568
J99N02W 2C2006 12 26.22819223 42 42.399+11 46 18.33 EY075568
J99N02W 2C2006 12 26.23554723 42 44.293+11 46 23.69 24.2 R EY075568
Observer details:
568 Mauna Kea. Observer F. Bernardi. Measurer 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
061225 568 28.0- 18.4- 061226 568 28.1- 17.9- MPO 41580 +0.010 day
Orbital elements:
1999 NW2 Earth MOID = 0.0163 AU
Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 MPC
M 158.30640 (2000.0) P Q
n 0.83476353 Peri. 52.66451 +0.94414197 +0.29733255
a 1.1171043 Node 289.64526 -0.32931928 +0.83555932
e 0.1092037 Incl. 8.67740 -0.01203132 +0.46198915
P 1.18 H 23.2 G 0.15 U 1
Residuals in seconds of arc (radar residuals in s.d.)
990713 704 0.7+ 0.5- 990716 610 0.6+ 0.2- 990719 595 0.3- 0.0+
990713 704 0.8+ 0.4- 990716 151 0.2- 0.2+ 990719 595 0.4- 1.1-
990713 704 1.0+ 0.4+ 990716 151 0.1+ 0.5- 990719 595 1.0- 0.1+
990713 704 0.6+ 0.2- 990716 151 0.1+ 0.5- 990719 595 0.9- 0.2+
990713 704 0.6+ 0.1- 990716 610 0.2- 0.5+ 990719 046 0.2+ 0.2-
990714 704 0.4- 0.8- 990716 610 0.4- 0.5+ 990719 046 0.1+ 0.1-
990714 704 0.5- 0.8- 990716 151 1.2+ 0.7- 990719 046 0.1+ 0.4-
990714 704 0.4- 1.4- 990716 610 0.8- 0.8+ 990719 046 0.1+ 0.1-
990714 704 (1.3- 2.7-) 990716 610 1.0- 1.2+ 990719 046 0.1+ 0.4-
990714 704 0.1+ 1.1- 990716 610 1.3- 1.4+ 990720 649 0.2+ 0.1+
990714 704 0.0+ 1.6- 990716 540 0.0+ 0.1- 990720 649 0.8+ 0.3-
990714 704 0.2+ 0.5- 990716 540 0.1+ 0.4+ 990720 649 0.5+ 0.7+
990714 704 0.5- 1.2- 990716 540 0.6+ 2.0+ 990720 649 (0.5+ 3.7+)
990714 704 0.3- 1.4- 990716 540 0.0- 0.4- 990720 649 1.9- 1.7+
990715 734 0.6- 0.9+ 990717 747 0.1+ 0.1- 990720 673 0.0+ 0.4-
990715 649 0.1- 0.9+ 990717 747 0.2+ 0.1- 990720 649 0.7+ 1.4+
990715 734 0.5- 0.1- 990717 726 0.7+ 0.6- 990720 673 0.3+ 0.3-
990715 649 0.5- 1.3+ 990717 726 0.1- 0.4+ 990720 673 0.3+ 0.5-
990715 649 0.1- 0.7+ 990717 747 0.2+ 0.7+ 990720 673 0.3+ 0.2-
990715 734 0.3- 1.5+ 990717 726 0.2+ 0.5+ 990720 673 0.3+ 0.4-
990715 734 0.2+ 0.2+ 990717 726 0.4- 2.3- 990720 673 0.3+ 0.3-
990715 596 0.2- 0.7+ 990717 726 1.4+ 0.5+ 990720 658 0.6+ 0.3-
990715 596 0.0+ 0.7+ 990717 726 (1.9- 2.1+) 990720 658 0.3+ 0.3-
990715 108 1.2- 1.4- 990717 747 0.1+ 1.0+ 990720 658 0.4+ 0.6-
990715 108 0.4- 1.6+ 990717 747 0.0- 1.1+ 990722 402 0.0- 0.9+
990715 596 0.2- 0.6+ 990717 726 0.6+ 0.8+ 990722 402 0.5+ 0.3-
990715 596 0.3+ 0.3+ 990717 726 0.1+ 0.4+ 990722 402 0.1+ 0.0-
990715 596 0.3- 0.4+ 990717 610 2.4+ 0.3+ 990723 848 0.8+ 1.1-
990715 108 0.2- 1.6- 990717 610 1.4+ 0.3+ 990723 848 0.1+ 0.4-
990715 046 0.3- 0.6+ 990717 610 0.5+ 0.5+ 990723 848 0.6+ 0.5-
990715 046 0.4- 0.7+ 990717 610 0.5- 0.4+ 990723 647 (0.3+ 3.4+)
990715 046 0.2+ 0.8+ 990717 610 1.4- 0.5+ 990723 647 1.2- 0.1-
990715 046 0.0- 0.3+ 990717 610 0.1+ 0.4+ 990725 848 0.6- 0.3+
990715 046 0.0- 0.5+ 990717 610 0.2- 0.2- 990725 848 1.0- 0.3+
990715 046 0.3+ 0.9+ 990717 610 0.4- 0.5- 990725 848 0.7- 0.3-
990715 046 0.0- 0.9+ 990717 610 0.6- 1.0- 990731 658 0.1+ 0.1-
990715 587 0.5- 0.2+ 990717 610 0.8- 1.5- 990731 658 0.2+ 0.1-
990715 120 0.6+ 1.4- 990718 859 0.4- 1.0- 990731 658 0.5+ 0.3-
990715 120 0.9- 0.8+ 990718 859 0.2- 1.5- 990731 402 0.5- 1.8+
990715 587 0.6+ 0.3- 990718 859 0.0+ 1.8- 990731 402 0.7+ 0.3+
990715 587 2.6+ 0.8- 990718 859 0.6- 0.5- 990731 402 0.1- 1.2-
990715 108 0.6- 0.4+ 990718 859 0.8- 0.3- 990802 658 0.6+ 0.6+
990715 108 0.9+ 0.1- 990718 595 0.2+ 0.0- 990802 658 0.3- 0.1+
990715 636 1.0+ 0.6- 990718 595 0.3- 0.0+ 990802 658 0.3+ 0.4+
990715 636 (0.4- 4.8+) 990718 595 0.4+ 0.6- 990810 658 (0.9+ 4.1+)
990716 817 0.1+ 0.9+ 990718 595 0.2- 0.5- 990810 658 (0.3- 6.5+)
990716 817 0.4- 0.5+ 990718 046 0.4- 0.3- 990810 658 0.5+ 1.8+
990716 620 (3.4+ 0.3-) 990718 046 0.2+ 0.4+ 061225 568 0.0+ 0.1-
990716 620 1.0+ 0.3- 990718 046 0.1- 0.2- 061225 568 0.0- 0.1+
990716 620 1.5- 0.2- 990718 046 0.3- 0.1- 061225 568 0.1- 0.1-
990716 610 0.7- 0.3- 990718 046 0.2- 0.0+ 061225 568 0.1- 0.1-
990716 610 0.2- 0.4- 990719 253/253D 0.343- 061226 568 0.1+ 0.1+
990716 610 0.0- 0.2- 990719 253/253D 6.934- 061226 568 0.1+ 0.1+
990716 610 0.2+ 0.2- 990719 673 0.1+ 0.6-
990716 151 0.1- 0.7+ 990719 673 0.0+ 0.4-
Ephemeris:
1999 NW2 a,e,i = 1.12, 0.11, 9 q = 0.9951
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2006 12 31 00 03.53 +12 43.4 0.544 1.098 86.9 63.4 24.3
2007 01 10 00 46.27 +14 29.6 0.579 1.116 87.1 61.7 24.5
2007 01 20 01 27.64 +15 57.7 0.621 1.133 86.8 60.1 24.6
2007 01 30 02 07.57 +17 08.3 0.668 1.150 86.0 58.7 24.7
Gareth V. Williams (C) Copyright 2006 MPC M.P.E.C. 2006-Y75
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