MPEC 2002-X50 : 2001 PM9
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M.P.E.C. 2002-X50 Issued 2002 Dec. 8, 16:13 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
2001 PM9
Revision to MPEC 2001-P36
Additional Observations:
K01P09M C2002 12 07.33065 08 50 51.21 +10 08 27.6 21.5 V 291
K01P09M C2002 12 07.34112 08 50 51.67 +10 08 17.8 21.6 V 291
K01P09M C2002 12 07.35288 08 50 52.25 +10 08 07.0 21.6 V 291
K01P09M HC2002 12 08.42427 08 51 44.46 +09 51 36.1 22.3 V 291
K01P09M HC2002 12 08.43361 08 51 44.73 +09 51 27.2 22.7 V 291
K01P09M HC2002 12 08.44093 08 51 45.12 +09 51 19.6 22.5 V 291
Observer details:
291 LPL/Spacewatch II. Observers M. Block, J. V. Scotti. 1.8-m f/2.7
reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
021207 291 0.09+ 0.03- 021208 291 0.09+ 0.03- MPO 30458 -0.10 day
Orbital elements:
2001 PM9 PHA 0.006
Epoch 2002 Nov. 22.0 TT = JDT 2452600.5 MPC
M 287.33202 (2000.0) P Q
n 0.47892493 Peri. 321.98755 -0.81126218 +0.56894012
a 1.6179226 Node 253.21370 -0.49602616 -0.79173984
e 0.4156630 Incl. 8.09183 -0.30953471 -0.22238516
P 2.06 H 18.6 G 0.15 U 4
Residuals in seconds of arc
010811 644 0.2- 0.6+ 010816 587 0.0 0.7- 010820 644 0.2- 0.0
010811 644 0.0 0.6+ 010816 104 1.9+ 0.6- 010825 540 (0.9- 2.0-)
010811 644 0.2- 0.5+ 010816 946 0.5- 1.0+ 010825 540 0.1+ 1.9-
010811 046 1.6+ 0.0 010816 946 0.4- 0.5- 010825 046 0.3+ 0.3+
010811 046 0.8+ 0.5- 010816 946 1.6- 0.3- 010825 046 0.3- 0.6+
010811 046 (2.3+ 1.0+) 010817 104 (3.8+ 0.8-) 010825 046 0.4- 0.9+
010811 493 0.7- 0.3+ 010817 649 0.4+ 0.0 010825 046 0.6- 0.9+
010811 557 0.2+ 0.1- 010817 649 0.2+ 0.0 010825 046 0.2- 0.3+
010811 493 0.2- 0.4+ 010817 649 0.3+ 0.2+ 010827 649 0.2+ 0.1+
010811 493 0.3- 0.5+ 010818 649 1.0+ 0.6- 010827 649 0.2- 0.1-
010811 557 0.1+ 0.2+ 010818 649 0.0 0.0 010827 649 0.4- 0.1+
010812 557 0.2+ 0.1+ 010818 649 0.2+ 0.0 010827 360 0.1+ 0.0
010812 644 0.5- 0.4- 010818 649 0.0 0.0 010827 360 0.0 0.2+
010812 644 0.3- 0.3+ 010818 918 1.1- 0.5- 010827 360 0.1+ 0.3+
010812 644 0.3+ 0.2- 010818 918 0.2- 0.2- 010829 658 0.2- 0.1+
010812 649 0.4- 0.3+ 010818 918 0.7- 0.6- 010829 658 0.0 0.1+
010812 649 0.2- 0.3+ 010818 540 1.7- 1.4- 010829 658 0.6- 0.5+
010812 649 0.3- 0.2- 010818 611 (2.6+ 1.2+) 010908 658 0.2- 0.0
010812 608 0.8- 0.5- 010818 611 (2.6+ 1.9+) 010908 658 0.6+ 0.3-
010812 608 0.7- 0.7- 010818 540 0.0 0.8- 010908 658 0.2+ 0.1+
010812 608 0.5- 0.1- 010818 540 0.2- 1.4- 010910 649 0.2+ 0.3+
010812 046 0.3+ 0.8+ 010818 046 0.3- 0.1+ 010910 649 0.3+ 0.4+
010812 046 0.4+ 0.6+ 010818 046 0.4- 0.2- 010910 649 0.1+ 0.1-
010812 046 0.2+ 1.0+ 010818 046 0.4+ 0.1+ 010910 658 0.6+ 0.1-
010812 046 0.4+ 0.1- 010818 046 0.1- 0.3+ 010910 658 0.2+ 0.6+
010813 658 0.3- 0.2+ 010818 046 0.5+ 0.6+ 010910 658 0.5- 0.4-
010813 658 0.3+ 0.6+ 010818 046 0.2+ 0.4+ 021207 291 0.2- 0.2+
010813 658 0.7+ 1.0+ 010819 422 0.0 0.1- 021207 291 0.7- 0.1-
010814 946 (1.8+ 2.8+) 010819 422 0.5+ 0.5- 021207 291 0.3- 0.1-
010815 946 0.2+ 0.1- 010819 422 0.4+ 0.2- 021208 291 1.5+ 0.4+
010815 946 0.3+ 1.0- 010819 422 0.7+ 0.4+ 021208 291 0.7- 0.2+
010816 587 1.6+ 1.8- 010820 644 0.4- 0.2+ 021208 291 0.3+ 0.6-
010816 587 0.3- 0.3- 010820 644 0.1+ 0.3+
Ephemeris:
2001 PM9 a,e,i = 1.62, 0.42, 8 q = 0.9454
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2002 12 02 08 46.05 +11 27.5 0.918 1.638 118.6 31.9 20.8
2002 12 12 08 54.41 +08 54.8 0.789 1.581 125.8 30.3 20.4
2002 12 22 08 59.76 +06 00.8 0.669 1.523 133.4 28.0 19.9
2003 01 01 09 01.29 +02 40.7 0.562 1.463 141.0 25.0 19.3
2003 01 11 08 58.01 -01 10.1 0.467 1.402 148.1 21.7 18.7
2003 01 21 08 49.07 -05 35.1 0.388 1.340 152.7 19.7 18.2
2003 01 31 08 33.78 -10 32.9 0.323 1.279 151.5 21.6 17.7
2003 02 10 08 12.38 -15 51.9 0.274 1.218 143.7 28.7 17.5
2003 02 20 07 46.33 -21 17.1 0.236 1.159 131.8 39.5 17.4
2003 03 02 07 17.20 -26 39.3 0.206 1.104 118.3 52.3 17.3
2003 03 12 06 45.28 -32 08.5 0.181 1.054 104.5 65.9 17.3
2003 03 22 06 05.95 -38 14.2 0.157 1.011 90.7 80.3 17.4
2003 04 01 05 05.65 -44 51.3 0.135 0.977 76.7 95.5 17.6
2003 04 11 03 23.24 -49 09.7 0.120 0.955 63.6 110.0 18.1
2003 04 21 01 16.43 -44 26.2 0.117 0.946 56.7 117.4 18.5
2003 05 01 23 51.28 -32 00.7 0.130 0.950 60.5 112.6 18.4
2003 05 11 23 08.65 -19 48.9 0.155 0.968 70.0 101.3 18.2
2003 05 21 22 46.76 -10 23.4 0.184 0.998 80.3 89.2 18.1
2003 05 31 22 32.99 -03 21.6 0.213 1.038 90.5 77.7 18.0
2003 06 10 22 20.73 +01 52.7 0.239 1.086 100.8 66.7 18.0
2003 06 20 22 06.77 +05 39.4 0.264 1.139 111.5 56.1 18.0
2003 06 30 21 49.56 +08 04.0 0.287 1.197 122.9 45.5 18.0
2003 07 10 21 29.38 +09 04.2 0.315 1.258 134.5 35.2 18.0
2003 07 20 21 08.27 +08 44.6 0.349 1.319 145.5 25.9 18.1
2003 07 30 20 48.86 +07 20.0 0.395 1.381 153.8 19.0 18.2
2003 08 09 20 33.58 +05 15.4 0.454 1.442 156.5 16.3 18.6
2003 08 19 20 23.65 +02 57.8 0.528 1.502 153.0 17.8 19.0
2003 08 29 20 19.04 +00 46.0 0.617 1.561 146.2 21.1 19.6
2003 09 08 20 19.23 -01 08.7 0.719 1.618 138.5 24.4 20.1
2003 09 18 20 23.35 -02 41.5 0.834 1.673 130.8 27.0 20.5
2003 09 28 20 30.58 -03 51.7 0.959 1.726 123.3 29.0 21.0
2003 10 08 20 40.28 -04 39.8 1.093 1.777 116.2 30.3 21.4
2003 10 18 20 51.82 -05 07.4 1.235 1.826 109.3 31.0 21.7
2003 10 28 21 04.78 -05 16.6 1.383 1.872 102.7 31.2 22.0
2003 11 07 21 18.83 -05 09.0 1.535 1.916 96.3 30.9 22.3
Gareth V. Williams (C) Copyright 2002 MPC M.P.E.C. 2002-X50
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