MPEC 2005-U43 : 1998 KH9
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M.P.E.C. 2005-U43 Issued 2005 Oct. 25, 15:57 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.
Supported in part by the Brinson Foundation
Supported in part by the TABASGO Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1998 KH9
Revision to MPEC 1998-K30
Additional Observations:
J98K09H HC2005 10 24.37774 03 34 54.56 +00 45 28.6 EU043291
J98K09H C2005 10 24.38646 03 34 53.92 +00 45 27.6 22.6 V EU043291
J98K09H C2005 10 24.39539 03 34 53.30 +00 45 26.3 22.6 V EU043291
J98K09H HC2005 10 25.26253 03 33 51.96 +00 43 39.6 EU043291
J98K09H HC2005 10 25.26636 03 33 51.62 +00 43 39.3 EU043291
J98K09H C2005 10 25.27021 03 33 51.36 +00 43 39.4 22.7 V EU043291
Observer details:
291 LPL/Spacewatch II. Observers M. Block, T. H. Bressi. 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
051024 291 0.07- 0.05- 051025 291 0.07- 0.05- MPO 47732 +0.28 day
Orbital elements:
1998 KH9
Epoch 2005 Aug. 18.0 TT = JDT 2453600.5 MPC
M 66.23523 (2000.0) P Q
n 0.30122810 Peri. 184.92086 -0.04486671 +0.95257662
a 2.2039702 Node 82.73763 -0.90589443 +0.08820639
e 0.4579442 Incl. 17.66235 -0.42112025 -0.29123429
P 3.27 H 18.6 G 0.15 U 1
Residuals in seconds of arc
980522 566 0.7+ 0.6- 980530 670 0.3- 0.0 980616 704 0.5- 0.5-
980522 566 0.7+ 0.2- 980530 670 1.0- 0.3+ 980616 658 0.8- 0.4+
980522 566 0.7+ 0.2+ 980530 670 0.6- 0.1+ 980616 658 1.0- 0.2+
980527 704 0.3+ 0.2+ 980530 422 0.3+ 0.8+ 980616 658 0.9- 0.3+
980527 704 0.2- 0.4- 980530 422 0.2+ 0.8+ 980616 704 0.3+ 0.6+
980527 704 0.2- 0.3+ 980530 422 0.1+ 0.1+ 980616 704 1.1- 0.5+
980527 704 0.3- 0.6+ 980530 402 0.4+ 0.2+ 980616 704 0.4+ 0.7+
980528 046 0.0 0.4+ 980530 402 0.3+ 0.4+ 980616 704 (0.4+ 2.2+)
980528 046 0.5- 0.1+ 980530 402 0.1+ 0.1+ 980616 104 0.1- 0.3-
980528 046 0.2+ 0.1+ 980531 557 0.4+ 0.3+ 980616 104 0.2+ 0.5+
980528 704 0.3+ 0.0 980531 557 0.2+ 0.3+ 980616 104 0.3+ 0.9+
980528 704 0.2- 0.1+ 980531 557 0.0 0.2+ 980617 360 0.1+ 0.1-
980528 704 0.0 0.3- 980531 670 0.3- 0.6+ 980617 360 0.1+ 0.2-
980528 704 1.2- 0.7+ 980531 670 1.1+ 0.9+ 980617 360 0.2+ 0.1-
980528 704 0.7- 0.2+ 980531 670 0.2- 0.8+ 980617 402 0.3+ 0.1-
980528 422 0.3- 0.0 980531 426 0.3+ 0.0 980617 402 0.3+ 0.2-
980528 422 0.4- 0.6- 980531 426 1.0+ 0.1+ 980617 402 0.4- 0.0
980528 422 0.2- 0.2+ 980531 426 0.6+ 0.1- 980618 704 0.9+ 0.2-
980528 422 0.5- 0.0 980531 046 0.5+ 0.7+ 980618 704 (2.2+ 0.9-)
980528 620 0.1- 0.6- 980531 046 0.7+ 0.4+ 980618 704 1.0+ 1.1-
980528 620 0.5- 0.5- 980531 046 0.3+ 0.8+ 980618 704 1.9+ 1.3+
980528 557 0.1+ 0.1+ 980531 046 0.6+ 0.4+ 980618 704 (0.9- 3.2-)
980528 620 0.9- 0.4- 980601 046 0.5+ 0.3+ 980619 658 1.0- 0.2+
980528 557 0.1- 0.2- 980601 046 0.7+ 0.5+ 980619 658 0.8- 0.3-
980528 557 0.0 0.0 980601 046 0.5+ 0.3+ 980619 658 1.1- 0.0
980528 620 1.3- 0.2- 980601 118 0.9+ 0.4+ 980619 587 0.4- 0.1-
980528 557 0.2- 0.2- 980601 118 0.8+ 0.5+ 980619 587 0.8- 0.3-
980528 046 0.2- 0.2- 980602 557 0.8+ 0.3+ 980619 587 0.1- 0.2-
980528 046 0.2- 0.1+ 980602 557 0.7+ 0.3+ 980623 860 (0.3- 3.0-)
980528 046 0.1- 0.2+ 980602 557 0.8+ 0.3+ 980623 860 0.4- 1.3-
980529 860 (2.2- 0.8+) 980602 046 0.6+ 1.5- 980623 860 1.0- 1.1+
980529 860 (1.4+ 2.4-) 980602 046 0.6+ 1.5- 980625 426 0.4+ 0.2-
980529 784 0.3+ 0.2+ 980602 046 0.5+ 1.7- 980625 426 0.7+ 0.3-
980529 784 0.4+ 0.2+ 980603 046 0.5+ 0.9- 980625 426 0.7+ 0.6-
980529 784 0.4- 0.2- 980603 046 0.1- 0.5- 980625 426 0.3+ 0.4-
980529 784 0.2+ 0.1- 980603 046 0.3+ 0.8- 980701 I02 0.2+ 0.3-
980529 734 0.2- 0.1+ 980604 118 0.3- 0.1- 980702 422 1.0- 0.5+
980529 734 0.0 1.3- 980604 118 0.1- 0.5+ 980702 422 0.4- 0.3+
980529 734 0.7- 0.5+ 980604 046 0.2- 0.3- 980702 422 0.8- 0.7+
980529 784 0.1+ 0.4+ 980604 046 0.4- 0.1- 980710 426 0.1+ 0.0
980529 784 0.3- 0.3- 980604 046 0.1- 0.2+ 980710 426 0.4- 0.0
980529 704 0.2+ 0.3+ 980604 046 0.3- 0.3- 980710 426 0.0 0.2+
980529 711 0.1+ 0.0 980604 557 0.2- 0.5- 980710 426 0.5+ 0.5+
980529 711 0.2- 0.1+ 980604 557 0.2- 0.5- 980711 422 0.7- 0.9+
980529 711 0.0 0.1- 980604 557 0.1+ 0.8- 980719 413 1.1+ 0.3-
980529 704 0.2+ 0.3+ 980606 557 0.9- 0.2- 980719 413 0.3- 1.1+
980529 704 0.2- 0.1+ 980606 557 0.5+ 0.9- 980719 413 0.8+ 1.6-
980529 704 1.1- 0.7- 980609 046 0.3+ 1.2- 980810 422 0.2- 0.3-
980529 704 1.1- 0.8+ 980609 046 0.5+ 1.1- 980810 422 0.2- 0.3-
980529 422 0.1- 0.2+ 980609 046 0.2+ 1.0- 051024 291 0.5- 0.5+
980529 422 0.4+ 0.0 980614 670 0.2+ 0.8+ 051024 291 0.6- 0.6+
980529 422 0.3- 0.2+ 980614 670 0.1- 0.0 051024 291 0.2- 0.4+
980529 046 0.0 0.1+ 980614 670 0.1- 0.3- 051025 291 0.3+ 0.2+
980529 046 0.0 0.3- 980614 670 0.4+ 0.5+ 051025 291 0.6- 0.4+
980529 046 0.1+ 0.1+ 980614 557 0.2- 0.6+ 051025 291 0.3- 0.9+
980529 046 0.1+ 0.0 980614 557 0.3- 0.4+
980529 046 0.1- 0.2+ 980614 557 0.1- 0.1+
Ephemeris:
1998 KH9 a,e,i = 2.20, 0.46, 18 q = 1.1947
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2005 10 17 03 43.06 +01 03.7 1.650 2.534 145.3 12.9 22.5
2005 10 27 03 31.77 +00 40.4 1.640 2.577 155.5 9.2 22.3
2005 11 06 03 19.11 +00 29.3 1.657 2.619 162.4 6.6 22.3
2005 11 16 03 06.38 +00 33.9 1.703 2.659 161.3 6.8 22.4
2005 11 26 02 54.81 +00 55.2 1.778 2.697 153.4 9.4 22.6
2005 12 06 02 45.34 +01 32.5 1.881 2.734 143.2 12.5 22.9
Timothy B. Spahr (C) Copyright 2005 MPC M.P.E.C. 2005-U43
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