MPEC 2001-S13 : 1998 HM3
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M.P.E.C. 2001-S13 Issued 2001 Sept. 20, 17:05 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
1998 HM3
Revision to MPEC 1998-H21
Observations:
J98H03M C2001 09 13.44498 05 24 23.85 +34 01 49.2 20.9 R 649
J98H03M C2001 09 13.44748 05 24 24.20 +34 01 42.1 20.6 R 649
J98H03M C2001 09 13.44991 05 24 24.54 +34 01 36.0 20.4 R 649
J98H03M C2001 09 13.45233 05 24 24.96 +34 01 28.9 20.4 R 649
J98H03M C2001 09 20.41454 05 41 16.88 +28 15 32.9 20.4 R 649
J98H03M C2001 09 20.41674 05 41 17.17 +28 15 26.0 20.5 R 649
J98H03M C2001 09 20.41897 05 41 17.48 +28 15 18.7 20.6 R 649
Observer details:
649 Powell Observatory, Louisburg. Observer K. Smalley. 0.75-m Newtonian
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
010913 649 0.13+ 0.22- 010920 649 0.14+ 0.22- MPC 32326 -0.13 day
Orbital elements:
1998 HM3
Epoch 2001 Oct. 18.0 TT = JDT 2452200.5 Spahr
M 54.29901 (2000.0) P Q
n 0.70819606 Peri. 136.99582 +0.89839538 +0.29521936
a 1.2465232 Node 210.86763 -0.24318806 +0.95090198
e 0.0621969 Incl. 39.32936 +0.36571206 -0.09290289
P 1.39 H 18.9 G 0.15 U 3
Residuals in seconds of arc
980421 704 0.4+ 0.8- 980423 704 0.3- 1.0- 980511 118 0.7+ 1.0+
980421 704 0.4- 0.3- 980423 704 1.2+ 0.9- 980511 118 0.7+ 0.2+
980421 704 0.2- 1.1- 980423 704 0.2+ 0.9- 980518 557 0.7+ 0.4-
980421 704 0.2- 0.2+ 980423 704 0.3- 1.1- 980518 557 0.3- 0.2+
980421 704 1.4+ 0.8+ 980424 046 0.5- 0.2- 980518 557 0.9- 0.4+
980421 046 0.1- 0.8+ 980424 046 0.6- 0.0 980519 360 0.0 0.0
980421 046 0.2+ 0.3+ 980424 046 0.8- 0.3- 980519 360 0.1+ 0.1-
980421 046 0.1+ 0.5+ 980424 118 0.7- 0.1- 980519 360 0.2- 0.1+
980421 046 0.2- 0.6+ 980424 557 0.6- 0.1+ 980519 557 0.6- 0.5-
980421 557 0.3- 0.1+ 980424 118 0.5- 0.0 980519 557 0.3- 0.3-
980421 557 0.4+ 0.8+ 980424 557 0.8- 0.1+ 980519 557 0.1- 0.2-
980421 557 0.1- 0.5+ 980424 118 0.5- 0.3+ 980525 118 1.1+ 0.0
980422 784 0.0 0.6+ 980424 557 0.6- 0.2- 980525 118 0.9+ 0.1-
980422 704 0.1+ 0.2- 980424 704 0.4- 1.1- 980525 118 0.8+ 0.1-
980422 784 0.2+ 0.5+ 980424 704 0.6- 1.4- 980527 360 0.3+ 0.2-
980422 784 0.1- 0.5+ 980424 704 0.2+ 1.5- 980527 360 0.3+ 0.7-
980422 784 0.0 0.1- 980424 704 0.1+ 1.4- 980527 360 0.7+ 0.6-
980422 704 0.3- 0.0 980424 704 0.2- 1.7- 980529 557 0.4- 0.0
980422 784 1.4+ 0.4+ 980425 118 0.1+ 0.1+ 980529 557 0.2- 0.5-
980422 784 0.6+ 0.6+ 980425 118 0.0 0.2+ 980531 557 0.2+ 0.1-
980422 704 0.3- 0.4- 980425 118 0.3- 0.0 980531 557 0.1+ 0.1+
980422 784 0.1+ 0.6+ 980426 360 0.2- 0.3+ 980606 658 0.9- 0.7-
980422 704 0.4- 0.6- 980426 360 0.1- 0.3+ 980606 658 0.2- 0.1-
980422 704 0.2+ 0.6- 980426 360 0.1- 0.1+ 980613 658 0.9- 0.2+
980422 104 (1.1- 2.0+) 980426 360 0.0 0.3+ 980613 658 0.9- 0.1+
980422 104 (0.3- 2.2+) 980427 118 0.1+ 0.0 980613 658 0.5- 0.1+
980422 104 0.0 1.0+ 980427 118 0.2+ 0.6+ 980616 658 1.2- 0.4+
980422 104 0.4+ 1.1+ 980427 422 0.0 0.7- 980616 658 1.3- 0.0
980422 557 0.0 0.8+ 980427 422 1.2+ 0.1+ 980616 658 1.3- 0.0
980422 557 0.6- 0.7+ 980427 422 0.2- 0.2+ 980628 711 0.6+ 0.0
980423 046 0.5- 0.9+ 980427 557 0.3+ 0.7+ 980628 711 0.2+ 0.2-
980423 046 0.1+ 0.1+ 980427 557 0.3+ 0.4+ 980629 711 0.1+ 0.1-
980423 046 0.3+ 0.6+ 980427 557 0.2+ 0.9+ 980629 711 0.3+ 0.3+
980423 118 0.5- 0.5+ 980503 360 0.2- 1.0+ 980702 658 0.4+ 0.7+
980423 118 0.8- 0.5+ 980503 360 0.1+ 0.8+ 980702 658 0.8- 0.0
980423 118 0.8- 0.5+ 980503 360 0.4+ 0.4+ 980702 658 0.3- 0.3-
980423 758 (3.0- 3.8-) 980504 402 0.4+ 0.2+ 010913 649 0.2+ 0.0
980423 758 (1.6- 2.7+) 980504 402 0.0 0.1- 010913 649 0.0 0.3-
980423 758 0.4+ 0.6+ 980504 402 0.0 0.7- 010913 649 0.3- 0.1+
980423 758 (2.0+ 2.6+) 980507 046 1.4+ 0.2+ 010913 649 0.5+ 0.5-
980423 704 0.3+ 0.2- 980507 046 1.1+ 0.4+ 010920 649 0.5- 0.2-
980423 704 0.3+ 0.9- 980507 046 1.1+ 0.0 010920 649 0.6- 0.1+
980423 704 0.5- 1.6- 980508 046 0.1- 0.4- 010920 649 0.4- 0.0
980423 704 0.4+ 0.8- 980508 046 0.2+ 0.0
980423 704 0.2+ 1.0- 980508 046 0.0 0.1-
Ephemeris:
1998 HM3 a,e,i = 1.25, 0.06, 39 q = 1.1690
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 09 18 05 35.63 +30 22.9 0.617 1.183 90.4 58.1 20.3
2001 09 28 05 57.59 +20 41.9 0.552 1.189 95.5 57.0 20.0
2001 10 08 06 15.71 +08 37.0 0.502 1.197 100.4 55.2 19.8
2001 10 18 06 29.64 -05 23.8 0.475 1.205 104.2 53.3 19.6
2001 10 28 06 38.81 -19 56.1 0.474 1.213 106.0 51.9 19.6
2001 11 07 06 42.61 -33 12.9 0.498 1.222 105.5 51.4 19.7
2001 11 17 06 40.19 -44 04.6 0.541 1.232 103.4 51.3 19.9
2001 11 27 06 30.97 -52 12.2 0.593 1.241 100.6 51.4 20.1
2001 12 07 06 15.31 -57 47.7 0.648 1.251 97.9 51.3 20.3
2001 12 17 05 55.02 -61 11.2 0.700 1.260 95.4 51.0 20.5
2001 12 27 05 33.89 -62 42.9 0.747 1.270 93.4 50.6 20.7
2002 01 06 05 16.11 -62 45.4 0.785 1.278 91.9 50.2 20.8
2002 01 16 05 04.54 -61 38.5 0.813 1.287 90.9 49.9 20.9
2002 01 26 05 00.39 -59 38.5 0.831 1.294 90.5 49.5 20.9
2002 02 05 05 03.32 -56 56.9 0.840 1.301 90.5 49.3 20.9
2002 02 15 05 12.50 -53 38.4 0.840 1.307 91.0 49.1 20.9
2002 02 25 05 27.08 -49 45.2 0.833 1.312 91.7 48.9 20.9
2002 03 07 05 46.13 -45 17.4 0.822 1.317 92.6 48.8 20.9
2002 03 17 06 08.94 -40 13.8 0.811 1.320 93.4 48.8 20.9
2002 03 27 06 34.85 -34 36.9 0.802 1.322 93.9 48.8 20.9
2002 04 06 07 03.14 -28 33.5 0.801 1.324 93.9 48.9 20.9
2002 04 16 07 33.18 -22 16.0 0.810 1.324 93.2 49.2 20.9
2002 04 26 08 04.34 -16 02.7 0.831 1.323 91.6 49.5 21.0
2002 05 06 08 35.97 -10 12.5 0.866 1.321 89.3 49.8 21.0
2002 05 16 09 07.61 -05 00.8 0.914 1.319 86.3 49.9 21.2
2002 05 26 09 38.87 -00 36.9 0.973 1.315 82.9 49.9 21.3
2002 06 05 10 09.47 +02 57.4 1.040 1.310 79.2 49.5 21.4
2002 06 15 10 39.32 +05 44.4 1.111 1.304 75.5 48.9 21.5
2002 06 25 11 08.39 +07 49.4 1.183 1.298 71.8 48.1 21.6
2002 07 05 11 36.74 +09 18.8 1.255 1.290 68.3 47.1 21.7
2002 07 15 12 04.53 +10 18.3 1.322 1.282 65.0 45.9 21.8
Timothy B. Spahr (C) Copyright 2001 MPC M.P.E.C. 2001-S13
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