MPEC 2001-L05 : 1999 JW6
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M.P.E.C. 2001-L05 Issued 2001 June 3, 18:23 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 JW6
Revision to MPEC 1999-J53
Observations:
J99J06W 1C2001 05 31.81249 18 08 51.40 -57 30 04.0 18.7 R 413
J99J06W 1C2001 05 31.81408 18 08 50.89 -57 30 10.1 413
J99J06W 1C2001 05 31.81569 18 08 50.65 -57 30 14.9 413
J99J06W 1C2001 06 01.72829 18 04 44.27 -58 19 32.7 19.3 R 413
J99J06W 1C2001 06 01.72990 18 04 43.80 -58 19 38.0 19.2 R 413
J99J06W 1C2001 06 01.73149 18 04 43.37 -58 19 42.8 19.3 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 (or two decimals in degrees), reference and Delta-T
010531 413 0.05+ 0.04- 010601 413 0.05+ 0.04- MPC 35736 -0.093 day
Orbital elements:
1999 JW6
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5 Spahr
M 83.84630 (2000.0) P Q
n 0.53243756 Peri. 68.51554 -0.38669318 -0.58177760
a 1.5076143 Node 66.43883 +0.23236494 -0.81233522
e 0.1430440 Incl. 51.31751 +0.89245444 -0.04057484
P 1.85 H 17.3 G 0.15 U 4
Residuals in seconds of arc
990513 704 0.4+ 0.7- 990514 620 0.0 0.8- 990524 118 0.1+ 0.8-
990513 704 1.8- 0.5+ 990514 620 0.2- 0.7- 990601 428 0.3+ 0.4-
990513 704 0.3- 0.0 990514 620 0.5- 0.4- 990601 428 1.3+ 0.4-
990513 704 0.2+ 0.3+ 990515 704 0.3- 0.0 990601 428 0.9+ 0.9-
990514 704 0.6+ 0.4+ 990515 704 0.7- 0.6+ 990603 422 0.9+ 0.1+
990514 860 0.7+ 0.3+ 990515 704 0.6- 1.1+ 990603 422 0.2+ 0.4-
990514 860 0.8- 1.0- 990515 704 1.2+ 0.9- 990603 422 0.0 0.7-
990514 704 0.3- 0.2+ 990515 704 0.9+ 0.2- 990604 402 0.7+ 0.1+
990514 860 0.4- 1.7+ 990515 704 0.3+ 0.2+ 990604 402 0.4+ 0.6-
990514 734 1.2- 1.1- 990515 704 0.3+ 1.5+ 990604 402 0.2- 0.5-
990514 704 0.4+ 0.2+ 990515 704 0.0 0.8+ 990605 402 0.2- 0.1-
990514 734 0.3+ 0.4- 990515 704 0.1+ 0.8+ 990605 402 1.1+ 0.8+
990514 734 0.5+ 0.0 990515 704 0.4- 0.6- 990605 402 0.3- 0.8-
990514 704 0.4- 0.1+ 990515 704 0.7+ 0.9+ 990605 360 0.2- 0.4-
990514 719 0.2- 0.3- 990515 704 0.6+ 0.2+ 990605 360 0.1+ 0.1-
990514 704 0.1+ 0.3+ 990515 704 1.6- 0.5+ 990605 360 0.0 0.2+
990514 719 0.0 0.5- 990515 704 0.5- 0.3+ 990608 704 0.3+ 0.5-
990514 704 0.7- 0.7- 990515 704 0.2- 0.6+ 990608 704 0.4+ 0.1-
990514 704 0.3- 0.0 990515 426 0.1- 0.3- 990608 704 0.5- 0.2+
990514 719 (2.3+ 0.6+) 990515 426 0.1- 0.3- 990608 704 0.3+ 0.2+
990514 719 0.2+ 0.1+ 990515 426 0.0 0.2- 990614 699 (0.7+ 2.1+)
990514 704 0.2+ 0.6+ 990517 046 0.4+ 0.6+ 990614 699 1.8+ 1.4+
990514 704 0.7- 0.3+ 990517 046 0.1+ 0.2+ 990614 699 1.6+ 0.6+
990514 704 0.2- 0.3- 990517 046 0.4+ 0.2+ 990620 046 0.8+ 0.3-
990514 704 0.1- 0.2+ 990519 118 0.6- 0.1- 990620 046 (2.2+ 1.2+)
990514 704 1.7- 0.1- 990519 118 0.3- 0.0 990803 413 0.4- 0.0
990514 704 0.1+ 1.1+ 990519 118 0.4- 0.4- 990803 413 0.5- 0.1+
990514 704 0.3+ 0.9+ 990520 360 0.5- 0.2- 990804 413 0.5- 0.2-
990514 704 0.2+ 1.3+ 990520 360 0.6- 0.7- 990804 413 0.5- 0.0
990514 704 0.3- 0.1- 990520 360 0.5- 0.6- 990804 413 0.4- 0.1-
990514 704 0.1+ 0.8+ 990523 118 0.6+ 0.4+ 010531 413 0.2- 0.1+
990514 704 0.1- 0.4+ 990523 118 0.3+ 0.4+ 010531 413 0.9- 0.8-
990514 704 0.2+ 0.5+ 990524 422 0.2+ 0.3- 010531 413 0.6+ 0.4-
990514 557 0.1+ 0.0 990524 422 0.2+ 0.5- 010601 413 0.2- 0.0
990514 557 0.1- 0.7- 990524 422 0.2- 0.1+ 010601 413 0.3- 0.2-
990514 557 0.1- 0.2+ 990524 118 0.1+ 0.7- 010601 413 0.1- 0.0
990514 620 0.2+ 1.1- 990524 118 0.0 0.7-
Ephemeris:
1999 JW6 a,e,i = 1.51, 0.14, 51 q = 1.2920
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 05 21 18 43.32 -46 50.8 0.717 1.608 136.1 25.9 18.8
2001 05 31 18 12.36 -56 45.2 0.708 1.624 140.6 23.4 18.7
2001 06 10 17 17.56 -64 40.5 0.736 1.639 138.3 24.3 18.8
2001 06 20 16 02.03 -68 56.8 0.795 1.653 131.4 27.4 19.1
2001 06 30 14 51.22 -69 44.1 0.877 1.666 123.1 30.7 19.4
2001 07 10 14 05.33 -68 48.2 0.972 1.678 115.0 33.3 19.8
2001 07 20 13 42.71 -67 35.3 1.075 1.688 107.7 35.0 20.0
2001 07 30 13 35.98 -66 42.4 1.178 1.697 101.1 35.9 20.3
2001 08 09 13 39.77 -66 19.1 1.279 1.705 95.4 36.3 20.5
2001 08 19 13 51.26 -66 23.7 1.375 1.712 90.3 36.2 20.6
2001 08 29 14 09.22 -66 51.8 1.464 1.717 85.8 35.9 20.8
2001 09 08 14 33.27 -67 36.8 1.545 1.720 81.8 35.4 20.9
2001 09 18 15 03.70 -68 31.1 1.617 1.722 78.3 34.8 21.0
2001 09 28 15 41.14 -69 25.3 1.680 1.723 75.3 34.2 21.0
2001 10 08 16 25.9 -70 07.5 1.734 1.723 72.6 33.6 21.1
2001 10 18 17 17.6 -70 23.7 1.780 1.721 70.2 33.0 21.1
2001 10 28 18 13.9 -70 00.1 1.819 1.717 68.1 32.5 21.1
2001 11 07 19 11.20 -68 46.0 1.853 1.712 66.2 32.0 21.2
2001 11 17 20 05.45 -66 37.8 1.882 1.706 64.4 31.5 21.2
Timothy B. Spahr (C) Copyright 2001 MPC M.P.E.C. 2001-L05
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