MPEC 2019-F69 : 2017 WF13
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M.P.E.C. 2019-F69 Issued 2019 Mar. 24, 17:51 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 WF13
Revision to MPEC 2017-W121
Additional Observations:
K17W13F C2017 03 11.38559410 12 16.147-39 33 14.16 20.6 GVEF069F51
K17W13F C2017 03 11.39403510 12 15.154-39 33 12.53 21.8 GVEF069F51
K17W13F C2017 03 15.37982110 04 30.034-39 18 21.91 21.5 GVEF069F51
K17W13F C2017 04 05.25599009 28 16.129-35 46 25.13 21.4 GVEF069F51
K17W13F C2017 04 05.26568309 28 15.297-35 46 16.44 21.5 GVEF069F51
K17W13F C2017 10 29.65397706 44 36.571+76 57 46.80 20.0 GVEF069F51
K17W13F C2017 10 29.65451906 44 36.018+76 57 46.28 19.4 GVEF069F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe,
E. Magnier, A. Schultz, M. Willman. Measurers S. Chastel, M. Huber,
Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
170311 F51 1.8+ 8.0- 171029 F51 0.8+ 0.6+ MPO431238 +0.00036 day
Orbital elements:
2017 WF13 Earth MOID = 0.2729 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 138.50547 (2000.0) P Q
n 0.22690452 Peri. 35.01206 +0.52746054 +0.70076059
a 2.6621996 Node 271.71604 -0.84695803 +0.38934362
e 0.7603364 Incl. 28.72125 -0.06668935 +0.59778436
P 4.34 H 18.1 G 0.15 U 4
Residuals in seconds of arc
170311 F51 0.2- 0.2- 171122 198 0.0 0.0 171201 H21 0.2+ 0.4+
170311 F51 0.0 0.1+ 171122 198 0.6+ 0.3- 171201 H21 0.2- 0.3+
170315 F51 0.0 0.3+ 171122 198 0.1+ 0.0 171201 H21 0.3+ 0.0
170405 F51 0.0 0.2- 171122 198 0.4- 0.3+ 171207 H21 0.2+ 0.0
170405 F51 0.1+ 0.0 171122 C47 0.1- 0.1+ 171207 H21 0.2+ 0.1+
171121 T08 1.1- 1.8- 171122 C47 0.2- 0.1+ 171207 H21 0.1- 0.3+
171121 T08 1.5+ 1.3+ 171122 C47 0.0 0.2+ 171207 H21 0.1- 0.1+
171121 T08 0.6+ 0.3- 171122 C47 0.1- 0.1+ 171207 H21 0.1- 0.3+
171121 T08 1.7+ 0.9- 171122 C47 0.2+ 0.4- 171207 H21 0.2- 0.1-
171122 I52 0.1+ 0.2+ 171122 K74 0.7- 0.5+ 171207 H21 0.1+ 0.0
171122 I52 0.1- 0.1+ 171122 K74 0.2- 0.2+ 171207 H21 0.2+ 0.1-
171122 I52 0.2+ 0.3- 171122 K74 0.4- 0.3+ 171208 H21 0.2- 0.1+
171122 I52 1.0+ 0.9- 171122 033 0.0 0.1- 171208 H21 0.2- 0.1-
171122 926 0.4- 0.0 171122 033 0.0 0.1+ 171208 H21 0.0 0.0
171122 926 0.4- 0.4+ 171122 K74 0.4- 0.3+ 171208 I52 0.1- 0.1-
171122 926 0.5- 0.1+ 171122 033 0.1- 0.1- 171208 I52 0.5+ 0.1-
171122 H36 0.9- 0.5+ 171122 033 0.1- 0.1+ 171208 I52 0.3- 0.5-
171122 H36 0.1- 0.5+ 171122 033 0.2- 0.1- 171208 G96 0.0 0.1+
171122 H36 0.3+ 0.1- 171123 033 0.2- 0.1+ 171208 G96 0.1- 0.0
171122 K61 0.8- 2.6- 171123 926 0.3- 0.1+ 171208 G96 0.0 0.1-
171122 K61 0.8- 2.6- 171123 926 0.1- 0.2+ 171208 G96 0.2- 0.1-
171122 K61 0.8- 2.7- 171123 926 0.3- 0.2+ 171211 H21 0.0 0.2+
171122 K61 0.8- 2.6- 171123 P93 0.6+ 0.7+ 171211 H21 0.1+ 0.0
171122 113 0.1+ 0.2+ 171123 P93 1.0+ 0.9+ 171211 H21 0.0 0.0
171122 B15 0.1- 0.3+ 171123 P93 1.3+ 0.4+ 171213 I52 0.3+ 0.2-
171122 B15 0.1- 0.4+ 171123 C43 0.5- 0.8+ 171213 I52 0.2+ 0.0
171122 246 0.2+ 0.4+ 171123 C43 0.5- 0.2+ 171213 I52 0.2+ 0.1+
171122 246 0.2- 0.2- 171123 C43 0.1- 0.4- 171213 I52 0.1- 0.1+
171122 246 0.5+ 0.1- 171124 926 0.7+ 0.4+ 171227 H21 0.1- 0.4-
171122 246 0.2- 0.7+ 171124 926 0.0 0.1+ 171227 H21 0.2- 0.4-
171122 113 0.1- 0.8+ 171124 926 0.2+ 0.3+ 171227 H21 0.0 0.1-
171122 B15 0.2+ 0.3+ 171124 J95 0.0 0.1- 171228 I52 0.0 1.1-
171122 246 0.5+ 0.7+ 171124 J95 0.2- 0.3+ 171228 I52 0.0 0.3+
171122 246 0.7+ 0.1- 171124 J95 0.0 0.1+ 171228 I52 0.1+ 0.3+
171122 B15 0.2+ 0.3+ 171126 130 0.3- 0.0 180115 691 0.3+ 0.1+
171122 246 0.7- 0.3+ 171126 130 0.0 0.2- 180115 691 0.3+ 0.3+
171122 B15 0.1+ 0.4+ 171126 130 0.0 0.4+ 180115 691 0.6+ 0.2+
171122 113 0.5+ 0.5- 171128 I52 0.1+ 0.3+
171122 198 0.6- 0.3+ 171128 I52 0.3+ 0.2+
Ephemeris:
2017 WF13 a,e,i = 2.66, 0.76, 29 q = 0.6380
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2019 02 22 06 45 38.8 +10 18 47 3.6938 4.3681 127.6 10.3 24.8
...
2019 03 09 06 41 12.0 +10 40 41 3.9379 4.4062 111.9 12.1 25.0
...
2019 03 17 06 40 28.4 +10 51 45 4.0785 4.4255 104.0 12.6 25.1
...
2019 03 23 06 40 37.7 +10 59 24 4.1864 4.4395 98.2 12.8 25.2
2019 03 24 06 40 42.6 +11 00 37 4.2046 4.4418 97.2 12.9 25.2
2019 03 25 06 40 48.4 +11 01 48 4.2227 4.4441 96.3 12.9 25.2
...
2019 03 31 06 41 42.0 +11 08 27 4.3319 4.4576 90.7 12.9 25.3
...
2019 04 08 06 43 40.8 +11 15 51 4.4769 4.4749 83.5 12.8 25.4
...
2019 04 23 06 49 30.5 +11 24 22 4.7404 4.5055 70.5 12.1 25.5
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-F69
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