MPEC 2017-C50 : 2017 BK123
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M.P.E.C. 2017-C50 Issued 2017 Feb. 5, 19:58 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 BK123
Observations:
K17BC3K* C2017 01 30.42790 10 28 50.273+31 26 37.20 21.4 wLEC050F51
K17BC3K C2017 01 30.44065 10 28 48.983+31 26 59.87 21.7 wLEC050F51
K17BC3K C2017 01 30.45342 10 28 47.684+31 27 22.66 21.3 wLEC050F51
K17BC3K _C2017 01 31.33012810 27 21.065+31 53 31.01 21.3 GUEC050568
K17BC3K _C2017 01 31.33111610 27 20.959+31 53 32.80 21.3 GUEC050568
K17BC3K _C2017 01 31.33210010 27 20.857+31 53 34.63 21.3 GUEC050568
K17BC3K KC2017 02 02.30178 10 23 46.78 +32 54 07.0 21.2 RoEC050291
K17BC3K KC2017 02 02.30348 10 23 46.57 +32 54 09.7 21.4 RoEC050291
K17BC3K KC2017 02 02.30518 10 23 46.38 +32 54 13.2 21.2 RoEC050291
K17BC3K KC2017 02 04.49916 10 19 16.55 +34 04 12.5 oEC050291
K17BC3K KC2017 02 04.51091 10 19 14.96 +34 04 35.0 oEC050291
K17BC3K KC2017 02 04.52271 10 19 13.40 +34 04 57.6 oEC050291
Observer details:
291 LPL/Spacewatch II. Observer A. F. Tubbiolo. 1.8-m f/2.7 reflector + CCD.
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.
Orbital elements:
2017 BK123 Earth MOID = 0.1710 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5 MPC
M 309.90605 (2000.0) P Q
n 0.53067846 Peri. 190.84072 +0.15569785 +0.96727380
a 1.5109441 Node 88.33791 -0.89063780 +0.22518539
e 0.7102164 Incl. 11.56228 -0.42722652 -0.11693133
P 1.86 H 20.2 G 0.15 U 8
Residuals in seconds of arc
170130 F51 0.0 0.1+ 170131 568 0.0 0.0 170202 291 0.1+ 0.0
170130 F51 0.0 0.0 170131 568 0.0 0.0 170204 291 0.1+ 0.0
170130 F51 0.0 0.1- 170202 291 0.0 0.3+ 170204 291 0.1- 0.0
170131 568 0.0 0.0 170202 291 0.1- 0.3- 170204 291 0.1+ 0.0
Ephemeris:
2017 BK123 a,e,i = 1.51, 0.71, 12 q = 0.4378
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 01 06 10 44 40.0 +22 43 41 1.0876 1.8793 130.3 23.5 22.9
...
2017 01 21 10 39 52.8 +27 17 42 0.8589 1.7609 145.6 18.4 22.0
...
2017 01 29 10 31 01.5 +30 45 00 0.7551 1.6927 153.0 15.3 21.6
...
2017 02 04 10 20 21.4 +33 48 03 0.6875 1.6392 156.5 13.9 21.3
2017 02 05 10 18 11.2 +34 20 32 0.6771 1.6301 156.7 13.8 21.2
2017 02 06 10 15 53.7 +34 53 30 0.6671 1.6209 156.9 13.8 21.2
...
2017 02 12 09 59 24.8 +38 18 38 0.6127 1.5645 155.2 15.4 21.0
...
2017 02 20 09 29 25.4 +42 53 31 0.5565 1.4857 146.7 21.4 20.8
...
2017 03 07 08 10 47.6 +49 11 47 0.4980 1.3264 122.2 39.3 20.9
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-C50
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