MPEC 2017-W120: 2017 WW12
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M.P.E.C. 2017-W120 Issued 2017 Nov. 24, 22:40 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
2017 WW12
Observations:
K17W12W* C2017 11 20.30372 01 23 58.662+02 10 48.09 21.0 wLEW120F51
K17W12W C2017 11 20.32744 01 23 58.910+02 09 41.90 20.8 wLEW120F51
K17W12W C2017 11 20.33929 01 23 59.018+02 09 08.79 20.8 wLEW120F51
K17W12W KC2017 11 21.07055301 24 13.28 +01 35 06.7 20.4 VuEW120H21
K17W12W KC2017 11 21.07861501 24 13.42 +01 34 44.4 20.4 VuEW120H21
K17W12W KC2017 11 21.08566501 24 13.49 +01 34 24.7 20.5 VuEW120H21
K17W12W C2017 11 21.23011 01 24 15.94 +01 27 45.4 20.2 GUEW120I52
K17W12W C2017 11 21.23087 01 24 15.93 +01 27 44.4 20.1 GUEW120I52
K17W12W C2017 11 21.23164 01 24 15.92 +01 27 42.5 19.8 GUEW120I52
K17W12W KC2017 11 22.10282 01 24 35.89 +00 47 34.4 20.2 RoEW120691
K17W12W KC2017 11 22.10550 01 24 35.94 +00 47 27.2 20.1 RoEW120691
K17W12W KC2017 11 22.10821 01 24 36.00 +00 47 20.0 20.0 RoEW120691
K17W12W C2017 11 23.27493 01 25 04.35 -00 05 55.8 20.4 RoEW120926
K17W12W C2017 11 23.28278 01 25 04.51 -00 06 17.2 20.5 RoEW120926
K17W12W C2017 11 23.29377 01 25 04.75 -00 06 47.2 20.4 RoEW120926
K17W12W C2017 11 23.78103 01 25 19.48 -00 28 55.8 21.0 VSEW120033
K17W12W C2017 11 23.78333 01 25 19.50 -00 29 02.5 21.1 VSEW120033
K17W12W C2017 11 23.78563 01 25 19.57 -00 29 08.8 20.5 VSEW120033
K17W12W C2017 11 23.83760 01 25 20.79 -00 31 29.5 20.6 VSEW120033
K17W12W C2017 11 23.83990 01 25 20.86 -00 31 35.6 20.9 VSEW120033
K17W12W C2017 11 24.17624 01 25 30.91 -00 46 38.8 20.1 RoEW120926
K17W12W C2017 11 24.18789 01 25 31.18 -00 47 10.5 20.2 RoEW120926
K17W12W C2017 11 24.19722 01 25 31.40 -00 47 35.5 20.1 RoEW120926
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers C. Hoegner,
B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
691 Steward Observatory, Kitt Peak. Observer M. J. Brucker. 0.9-m f/3
reflector + CCD.
926 Tenagra II Observatory. Observers M. Schwartz, P. R. Holvorcem. Measurer
M. Schwartz. 0.81-m f/7 Ritchey-Chretien + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, 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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.76-m f/3.0
astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer R. A. Kowalski.
Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny,
R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD.
Orbital elements:
2017 WW12 Earth MOID = 0.3169 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 329.94209 (2000.0) P Q
n 0.22104880 Peri. 236.21744 -0.09061291 -0.96927224
a 2.7090100 Node 220.95456 +0.98946482 -0.06158721
e 0.5600242 Incl. 20.42035 +0.11290998 -0.23815613
P 4.46 H 20.5 G 0.15 U 7
Residuals in seconds of arc
171120 F51 0.1- 0.0 171121 I52 0.1- 0.4+ 171123 033 0.2- 0.5-
171120 F51 0.1+ 0.1+ 171122 691 0.0 0.1+ 171123 033 0.0 0.6-
171120 F51 0.1- 0.0 171122 691 0.0 0.2+ 171123 033 0.4- 0.5-
171121 H21 0.1- 0.5- 171122 691 0.2+ 0.5+ 171123 033 0.2- 0.4-
171121 H21 0.3+ 0.4- 171123 926 0.1- 0.2+ 171124 926 0.2+ 0.5+
171121 H21 0.2- 0.5- 171123 926 0.2- 0.2+ 171124 926 0.2+ 0.2+
171121 I52 0.5+ 1.0- 171123 926 0.1- 0.1+ 171124 926 0.2+ 0.4+
171121 I52 0.2+ 0.2+ 171123 033 0.3+ 0.0
Ephemeris:
2017 WW12 a,e,i = 2.71, 0.56, 20 q = 1.1919
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 10 25 01 29 49.9 +21 11 25 0.5418 1.5293 168.7 7.3 20.6
...
2017 11 09 01 23 44.2 +11 00 52 0.4706 1.4352 156.8 15.8 20.5
...
2017 11 17 01 23 17.4 +04 45 55 0.4532 1.3886 146.3 23.3 20.6
...
2017 11 23 01 24 57.5 +00 06 46 0.4485 1.3559 138.4 28.9 20.7
2017 11 24 01 25 25.5 -00 38 31 0.4483 1.3506 137.1 29.9 20.7
2017 11 25 01 25 56.8 -01 23 18 0.4483 1.3454 135.8 30.8 20.7
...
2017 12 01 01 30 16.2 -05 39 20 0.4513 1.3156 128.6 35.9 20.8
...
2017 12 09 01 39 11.9 -10 38 40 0.4618 1.2798 120.0 41.8 21.0
...
2017 12 24 02 05 09.7 -17 30 50 0.4935 1.2275 107.7 49.8 21.3
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-W120
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