MPEC 1999-P17 : 1998 KE3
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M.P.E.C. 1999-P17 Issued 1999 Aug. 6, 14:15 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.
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1998 KE3
Revision to MPEC 1998-K21
Observations:
J98K03E 1C1999 08 01.80713 03 43 27.23 -22 20 12.2 19.6 R 413
J98K03E 1C1999 08 01.81091 03 43 27.41 -22 20 12.9 19.4 R 413
J98K03E 1C1999 08 01.81409 03 43 27.58 -22 20 12.9 19.6 R 413
J98K03E 1C1999 08 04.79052 03 45 50.21 -22 27 15.8 19.6 R 413
J98K03E 1C1999 08 04.79320 03 45 50.34 -22 27 16.3 19.8 R 413
J98K03E 1C1999 08 04.79610 03 45 50.47 -22 27 16.9 19.6 R 413
Observer details:
413 Siding Spring. Observer R. H. McNaught. 1.0-m f/8 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
990801 413 0.7+ 4.1+ 990804 413 0.6+ 4.1+ MPC 32332 +0.0013 day
Orbital elements:
1998 KE3
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Williams
M 169.85312 (2000.0) P Q
n 0.33593647 Peri. 130.37896 -0.74915537 +0.04155581
a 2.0494215 Node 63.02017 -0.54184569 -0.61251539
e 0.2534448 Incl. 47.88712 +0.38101112 -0.78936557
P 2.93 H 15.5 G 0.15 U 3
Residuals in seconds of arc
980423 699 0.3- 0.3+ 980525 422 0.1- 0.2+ 980530 422 0.2- 0.1-
980423 699 0.4+ 0.4+ 980525 422 0.2- 0.1+ 980530 422 0.3- 0.2-
980423 699 0.5+ 0.1+ 980525 046 0.1- 0.1- 980531 426 0.6- 0.7-
980523 704 0.0 0.7+ 980525 046 0.1+ 0.6+ 980531 426 0.5- 0.1-
980523 704 0.0 0.8+ 980525 046 0.4- 0.2- 980531 426 0.3- 0.2+
980523 704 0.1- 0.2- 980525 046 0.6- 0.3+ 980531 540 (3.0- 3.2-)
980523 704 0.1+ 1.0+ 980525 046 0.2- 0.4+ 980531 540 (0.4- 5.0+)
980523 704 1.0- 1.1+ 980525 104 0.2- 0.3- 980602 046 0.2- 0.3-
980524 704 0.6- 0.4+ 980525 104 0.1+ 0.3+ 980602 046 0.3- 0.1-
980524 704 0.7- 0.8+ 980525 104 0.6- 0.2+ 980602 046 0.4- 0.3-
980524 704 1.2- 0.4- 980526 557 0.1- 0.4+ 980602 118 0.5- 0.5+
980524 704 0.3+ 0.4+ 980526 557 0.2- 0.2+ 980602 118 0.3- 0.3+
980524 704 0.1- 0.4+ 980526 557 0.0 0.4+ 980603 046 0.5- 0.2+
980524 704 0.5- 0.2+ 980526 704 0.7+ 0.1+ 980603 046 0.5- 0.1-
980524 704 0.4- 0.2+ 980526 704 0.9+ 1.1+ 980603 046 0.5- 0.3-
980524 704 0.0 1.0+ 980526 704 0.5+ 0.6+ 980604 046 0.3- 0.7-
980524 670 0.6- 0.1+ 980526 704 0.5+ 0.8+ 980604 046 0.1- 0.6-
980524 670 0.2- 0.2- 980526 704 1.0- 0.2+ 980604 046 0.1+ 0.6-
980524 704 0.7- 0.1+ 980526 704 1.0- 0.6+ 980608 860 (0.4+ 2.4-)
980524 704 0.5+ 0.3+ 980526 704 0.2- 0.8+ 980608 860 (0.5- 2.0-)
980524 670 0.1+ 1.1+ 980526 704 0.3- 0.6+ 980609 046 0.4- 0.3+
980524 670 0.6- 0.1+ 980526 422 0.4+ 1.4- 980609 046 0.5- 0.0
980524 422 0.1- 0.2+ 980526 422 0.7+ 1.3- 980609 046 0.4- 0.3+
980524 422 0.1- 0.1- 980526 422 0.4+ 1.5- 980609 046 0.5- 0.6+
980524 422 0.1+ 0.3+ 980526 422 0.4+ 1.5- 980616 704 0.4- 0.7+
980524 426 0.4- 0.0 980526 426 0.3+ 0.3- 980616 704 0.8- 0.9+
980524 426 0.1- 0.1+ 980526 426 0.0 0.0 980616 704 0.1- 1.6+
980524 426 0.2- 0.2- 980526 426 0.5- 0.5- 980616 704 0.3- 0.3+
980524 426 0.2- 0.0 980526 402 0.2+ 0.3+ 980616 704 0.2+ 1.7+
980524 104 1.5+ 0.2+ 980526 402 0.0 0.5+ 980616 104 0.3- 0.4+
980524 104 0.8+ 0.1+ 980526 402 0.1- 0.4+ 980616 104 0.3- 0.8+
980524 104 0.5+ 0.6+ 980526 360 0.3+ 0.3+ 980616 104 0.4- 0.9+
980524 104 0.2+ 0.1+ 980526 360 0.1+ 0.3+ 980616 104 0.2- 0.6+
980525 816 0.1+ 0.1- 980526 360 0.1+ 0.2+ 980617 426 0.1+ 0.1+
980525 816 0.0 0.0 980526 900 0.7+ 1.0- 980617 426 0.1- 0.2+
980525 816 0.1+ 0.1+ 980526 900 1.6+ 1.4- 980617 426 0.1- 0.0
980525 816 0.1+ 0.1+ 980526 104 1.4+ 1.8- 980618 704 0.8- 0.2-
980525 824 1.1- 1.3- 980526 104 (2.8+ 1.6-) 980618 704 1.7+ 1.1-
980525 824 0.1+ 1.4- 980526 104 1.2+ 1.0- 980618 704 0.5- 0.2-
980525 824 0.3- 0.8- 980526 104 1.4+ 1.4- 980618 704 1.0+ 1.5-
980525 704 0.5+ 0.5+ 980526 046 1.1+ 1.5- 980618 704 0.4- 1.0+
980525 704 0.8+ 0.0 980526 046 1.2+ 1.5- 980619 587 0.7+ 0.5-
980525 704 0.3+ 1.0+ 980526 046 1.3+ 1.7- 980619 587 0.3- 0.4-
980525 704 0.3- 0.2- 980526 120 1.2+ 1.8- 980625 426 0.5- 1.0+
980525 704 0.1+ 0.8+ 980526 120 1.3+ 1.6- 980625 426 1.0- 0.8+
980525 704 0.4+ 0.7- 980526 120 1.4+ 1.6- 980625 426 0.6- 0.8+
980525 704 0.7+ 0.3+ 980526 120 (0.7+ 2.0-) 980710 426 0.4+ 0.6-
980525 670 0.4- 0.2+ 980527 700 1.9+ 0.8- 980710 426 0.3+ 0.3-
980525 704 (2.3- 2.9-) 980527 700 (2.4+ 0.8-) 980710 426 0.0 0.5-
980525 670 0.8+ 0.3+ 980527 422 0.6- 0.6+ 990801 413 0.3- 0.1+
980525 670 0.0 0.5+ 980527 422 0.9- 0.6+ 990801 413 0.3- 0.1-
980525 670 0.4- 0.0 980528 422 0.3- 0.1- 990801 413 0.1- 0.3+
980525 426 0.5- 0.2- 980528 422 0.3- 0.2- 990804 413 0.5- 0.3+
980525 426 0.2- 0.0 980528 422 0.0 0.2+ 990804 413 0.4- 0.2+
980525 426 0.2- 0.0 980529 860 0.1+ 1.2+ 990804 413 0.4- 0.1+
980525 426 0.4- 0.1+ 980529 860 (0.5- 4.0+)
980525 422 0.2- 0.6+ 980530 422 0.7- 0.3-
Ephemeris:
1998 KE3 a,e,i = 2.05, 0.25, 48 q = 1.5300
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 07 31 03 41.93 -22 16.6 2.472 2.560 83.2 23.2 20.6
1999 08 10 03 49.59 -22 42.6 2.373 2.564 88.9 23.3 20.5
1999 08 20 03 55.15 -23 22.3 2.272 2.567 95.0 23.1 20.4
1999 08 30 03 58.25 -24 13.6 2.170 2.568 101.4 22.7 20.3
1999 09 09 03 58.46 -25 13.8 2.071 2.569 108.1 21.9 20.2
1999 09 19 03 55.33 -26 18.0 1.977 2.568 115.0 20.8 20.1
1999 09 29 03 48.51 -27 18.5 1.893 2.567 121.8 19.4 19.9
1999 10 09 03 37.89 -28 05.7 1.823 2.564 128.2 17.8 19.8
1999 10 19 03 23.76 -28 27.5 1.771 2.560 133.4 16.4 19.7
1999 10 29 03 07.06 -28 12.3 1.742 2.555 136.4 15.5 19.6
1999 11 08 02 49.24 -27 12.6 1.738 2.549 136.4 15.5 19.6
1999 11 18 02 32.06 -25 27.2 1.760 2.541 133.2 16.5 19.6
1999 11 28 02 17.07 -23 02.4 1.809 2.533 127.5 18.0 19.7
1999 12 08 02 05.24 -20 08.8 1.880 2.523 120.2 19.7 19.9
1999 12 18 01 57.00 -16 57.6 1.971 2.513 112.1 21.3 20.0
1999 12 28 01 52.27 -13 38.9 2.078 2.501 103.7 22.5 20.2
2000 01 07 01 50.73 -10 19.2 2.194 2.488 95.4 23.2 20.3
2000 01 17 01 51.97 -07 02.8 2.316 2.474 87.3 23.4 20.4
2000 01 27 01 55.58 -03 52.0 2.440 2.459 79.5 23.2 20.5
2000 02 06 02 01.20 -00 47.6 2.563 2.443 71.9 22.6 20.6
2000 02 16 02 08.52 +02 10.1 2.680 2.425 64.5 21.6 20.6
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-P17
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