MPEC 2017-C05 : 1999 LW1
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M.P.E.C. 2017-C05 Issued 2017 Feb. 1, 11:57 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F 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 https://www.minorplanetcenter.net/ ISSN 1523-6714
1999 LW1
Revision to MPEC 1999-L19
Additional Observations:
J99L01W C2017 01 30.53325 10 59 45.016-12 32 12.19 20.7 wLEC005F51
J99L01W C2017 01 30.54488 10 59 42.301-12 31 52.90 20.7 wLEC005F51
J99L01W C2017 01 30.55651 10 59 39.584-12 31 33.47 20.8 wLEC005F51
J99L01W C2017 01 30.56812 10 59 36.873-12 31 13.94 20.7 wLEC005F51
J99L01W KC2017 01 31.03676010 57 51.42 -12 17 53.4 20.1 GUEC005K92
J99L01W KC2017 01 31.04119510 57 50.39 -12 17 46.0 20.7 GUEC005K92
J99L01W KC2017 01 31.04567710 57 49.34 -12 17 38.6 20.0 GUEC005K92
J99L01W KC2017 01 31.05012710 57 48.29 -12 17 31.1 20.5 GUEC005K92
J99L01W _C2017 01 31.39261810 56 32.140-12 08 08.53 20.3 GUEC005568
J99L01W _C2017 01 31.39360410 56 31.914-12 08 06.90 20.3 GUEC005568
J99L01W _C2017 01 31.39458410 56 31.685-12 08 05.23 20.4 GUEC005568
Observer details:
568 Mauna Kea. Observers R. J. Wainscoat, D. Woodworth. Measurers M. Micheli,
R. J. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD.
F51 Pan-STARRS 1, Haleakala. Observers B. Gibson, T. Goggia, S. Kahale,
T. Lowe, A. Schultz, M. Willman. Measurers K. Chambers, S. Chastel,
L. Denneau, H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat,
C. Waters, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
K92 Sutherland-LCOGT B. Observers T. Lister, S. Greenstreet, E. Gomez.
Measurer T. Lister. 1.0-m f/8 Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
170130 F51 1.30+ 0.44+ 170131 568 1.35+ 0.40+ MPO243000 -1.8 day
Orbital elements:
1999 LW1 Earth MOID = 0.0997 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5 MPC
M 55.85579 (2000.0) P Q
n 0.57148400 Peri. 168.51508 +0.97329743 -0.22438937
a 1.4381361 Node 204.61446 +0.20033228 +0.93325055
e 0.6824952 Incl. 6.67156 +0.11206731 +0.28052240
P 1.72 H 20.3 G 0.15 U 4
Residuals in seconds of arc
990607 703 1.1+ 1.0- 990609 426 0.1+ 0.0 990610 118 0.3- 0.0
990607 703 0.7+ 0.9- 990609 426 0.0 0.3- 990611 704 0.8+ 0.6-
990607 703 0.2+ 0.7+ 990609 426 0.6- 0.3+ 990611 704 0.3+ 0.1-
990607 703 1.0+ 1.0+ 990609 557 1.0- 0.1- 990611 704 0.1- 0.5-
990607 046 0.1- 0.6- 990609 046 0.5- 0.3+ 990611 704 0.4+ 1.0-
990607 046 0.4- 0.9- 990609 046 0.1+ 0.2- 990611 704 0.6+ 1.3-
990607 046 1.5- 0.1- 990609 046 0.4+ 0.2+ 170130 F51 0.0 0.1+
990607 046 0.6+ 0.0 990609 046 0.1+ 0.5+ 170130 F51 0.0 0.0
990607 046 0.8+ 0.2+ 990609 046 1.0+ 0.6+ 170130 F51 0.0 0.0
990607 046 0.1+ 0.0 990609 046 1.0+ 0.2+ 170130 F51 0.1- 0.1+
990608 557 0.4- 0.2- 990609 611 0.8- 0.5+ 170131 K92 0.1+ 0.2-
990608 557 0.3- 0.8- 990609 611 0.9- 1.3+ 170131 K92 0.2+ 0.2-
990608 557 0.1- 0.6- 990609 611 0.7- 0.3- 170131 K92 0.0 0.4-
990608 557 0.1- 0.2+ 990609 611 0.7- 0.8+ 170131 K92 0.2- 0.4-
990609 693 0.3+ 0.1+ 990609 557 0.4- 0.5- 170131 568 0.1+ 0.0
990609 693 0.3+ 0.2+ 990609 557 0.1- 0.2+ 170131 568 0.1+ 0.0
990609 693 0.5- 0.9+ 990610 118 0.5+ 0.9+ 170131 568 0.1+ 0.0
990609 426 0.1- 0.3+ 990610 118 0.6- 0.3+
Ephemeris:
1999 LW1 a,e,i = 1.44, 0.68, 7 q = 0.4566
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 01 02 12 38 25.7 -21 17 57 0.4355 1.0359 84.4 70.9 21.1
...
2017 01 17 11 49 47.5 -17 48 10 0.4424 1.2136 110.8 49.3 20.8
...
2017 01 25 11 20 36.9 -14 56 38 0.4517 1.3016 125.9 37.8 20.7
...
2017 01 31 10 57 59.9 -12 19 03 0.4657 1.3646 137.3 29.3 20.6
2017 02 01 10 54 14.9 -11 50 49 0.4688 1.3749 139.2 27.9 20.6
2017 02 02 10 50 31.1 -11 22 09 0.4722 1.3851 141.1 26.5 20.6
...
2017 02 08 10 28 52.3 -08 23 50 0.4979 1.4447 151.9 18.8 20.5
...
2017 02 16 10 03 12.9 -04 25 01 0.5480 1.5206 163.1 10.9 20.6
...
2017 03 03 09 29 04.3 +01 55 25 0.6906 1.6521 158.0 13.0 21.3
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-C05
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