MPEC 2019-A209: 2017 BL6
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M.P.E.C. 2019-A209 Issued 2019 Jan. 13, 12:47 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 BL6
Revision to MPEC 2017-B85
Additional Observations:
K17B06L C2011 09 20.53606000 25 43.328+25 07 50.74 21.5 GVEA209F51
K17B06L C2011 09 20.56258700 25 40.445+25 07 38.51 22.1 GVEA209F51
K17B06L C2011 09 21.50005700 24 03.399+25 00 14.90 21.6 GVEA209F51
K17B06L C2011 09 30.34999300 08 22.741+23 24 56.85 21.9 GVEA209F51
K17B06L C2014 06 30.52390322 42 08.111+04 25 18.73 21.7 GVEA209F51
K17B06L C2014 06 30.53757922 42 08.017+04 25 33.61 22.0 GVEA209F51
K17B06L C2014 06 30.55131722 42 07.949+04 25 48.55 21.6 GVEA209F51
K17B06L C2014 06 30.56502022 42 07.852+04 26 03.52 22.0 GVEA209F51
K17B06L C2014 07 10.53755922 39 17.662+07 11 20.22 21.4 GVEA209F51
K17B06L C2014 07 10.55109422 39 17.104+07 11 32.35 21.6 GVEA209F51
K17B06L C2014 07 10.56466122 39 16.541+07 11 44.45 21.9 GVEA209F51
K17B06L C2014 08 29.33089921 23 22.967+08 23 48.03 22.0 GVEA209F51
K17B06L C2014 09 15.39335321 06 40.070+04 56 48.01 22.3 GVEA209F51
K17B06L C2014 09 15.40562421 06 39.641+04 56 39.85 22.4 GVEA209F51
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
110920 F51 11.6+ 3.8+ 140915 F51 6.6+ 3.2+ MPO419558 +0.0010 day
Orbital elements:
2017 BL6 Earth MOID = 0.1018 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 101.06330 (2000.0) P Q
n 0.62860723 Peri. 294.14444 -0.92934232 +0.33882881
a 1.3496354 Node 265.93147 -0.26220544 -0.88537274
e 0.2285299 Incl. 8.45661 -0.25994452 -0.31829256
P 1.57 H 21.2 G 0.15 U 1
Residuals in seconds of arc
110920 F51 0.0 0.0 170129 246 2.2- 1.1+ 170227 691 0.3- 0.5-
110920 F51 0.2- 0.4+ 170129 246 0.7- 0.7+ 170320 807 0.2+ 0.0
110921 F51 0.2+ 0.0 170130 807 0.2+ 0.1+ 170320 807 0.0 0.2-
110930 F51 0.2- 0.0 170130 807 0.1+ 0.1+ 170320 807 0.1+ 0.3-
140630 F51 0.2+ 0.0 170130 I52 0.8- 1.6- 170328 691 0.5- 0.0
140630 F51 0.0 0.0 170130 I52 0.3- 0.2- 170328 691 0.2+ 0.4-
140630 F51 0.2+ 0.0 170130 I52 0.2+ 0.2- 170328 691 0.2- 0.1+
140630 F51 0.0 0.0 170201 T12 0.2+ 0.1+ 170403 291 0.3- 0.2+
140710 F51 0.2+ 0.1+ 170201 T12 0.2+ 0.1+ 170403 291 0.1- 1.0-
140710 F51 0.1+ 0.1+ 170202 807 0.0 0.0 170403 291 0.1+ 0.1-
140710 F51 0.1+ 0.0 170202 807 0.1- 0.3+ 170423 926 0.0 0.2+
140829 F51 0.2- 0.4- 170202 807 0.2- 0.5- 170423 926 0.3- 0.4-
140915 F51 0.0 0.6- 170204 H21 0.2+ 0.5- 170423 474 0.6- 0.8-
140915 F51 0.1- 0.1+ 170204 H21 0.2+ 0.4- 170423 474 0.5+ 0.3+
161205 G96 0.1+ 0.6+ 170204 H21 0.1+ 0.3- 170430 807 0.0 0.2-
161205 G96 0.0 0.3- 170205 807 0.1+ 0.0 170430 807 0.1- 0.3-
161205 G96 0.3+ 0.2- 170205 807 0.3+ 0.6- 170430 807 0.1+ 0.2-
161205 G96 0.0 0.5- 170214 807 0.3- 0.6+ 170502 691 0.9+ 0.1-
170126 G45 0.4+ 0.2+ 170214 807 0.4- 0.5+ 170502 691 0.3+ 0.1+
170126 G45 0.3+ 0.0 170214 807 0.3- 0.5+ 170502 691 0.5+ 0.0
170126 G45 0.0 0.4- 170214 291 0.4- 0.4- 170517 691 0.7- 1.2+
170126 G45 0.2+ 0.1- 170214 291 0.2- 0.2- 170517 691 0.4+ 0.3-
170126 G45 0.3+ 0.3+ 170214 291 0.1+ 0.2- 170517 691 0.1- 0.0
170126 G45 0.1- 0.4+ 170214 204 0.9- 0.5+ 170523 691 0.1- 0.4-
170127 926 0.2+ 0.0 170214 204 0.2+ 0.3+ 170523 691 0.5- 0.1-
170127 926 0.1+ 0.4+ 170218 H21 0.3- 0.1+ 170523 691 0.1+ 0.4+
170127 926 0.2- 0.8+ 170218 H21 0.3- 0.1+ 170529 291 0.3+ 0.3+
170127 H01 0.3+ 0.0 170218 H21 0.1- 0.0 170529 291 0.2+ 0.0
170127 H01 0.2+ 0.0 170219 474 0.2+ 0.0 170529 291 0.3+ 0.1-
170127 H01 0.3+ 0.1+ 170219 474 0.2+ 0.2+ 170604 291 0.9- 0.4+
170127 H01 0.2+ 0.3+ 170219 474 0.3+ 0.3+ 170604 291 1.2+ 0.1+
170127 474 0.1+ 0.1+ 170219 474 0.3+ 0.1- 170604 291 0.1- 0.3-
170127 474 0.1+ 0.0 170220 H21 0.2+ 0.0 170606 291 0.2+ 0.3+
170127 474 0.1+ 0.2+ 170220 H21 0.3+ 0.0 170606 291 0.9- 0.0
170127 474 0.2+ 0.2+ 170220 H21 0.0 0.0 170606 291 0.2- 0.2+
170127 K88 0.3- 1.1+ 170221 691 0.4- 0.3+ 170613 691 0.4- 0.6-
170127 K88 0.4+ 0.7+ 170221 691 0.2+ 0.3+ 170613 691 0.2- 0.3-
170127 K88 0.2+ 0.2+ 170222 691 0.0 0.4- 170613 691 0.3+ 0.1-
170127 C43 1.5+ 1.7+ 170222 691 0.0 0.3+ 170617 691 0.4- 0.5+
170127 C43 2.0+ 0.8+ 170222 691 0.0 0.0 170617 691 0.1+ 0.1+
170127 246 0.2- 0.5- 170223 H21 0.2+ 0.2+ 170617 691 0.3- 0.0
170127 246 0.3- 0.2+ 170223 H21 0.1+ 0.2+ 170622 291 0.1- 0.2+
170127 246 0.1+ 0.6- 170223 H21 0.1+ 0.3+ 170622 291 0.1+ 0.2-
170127 246 0.2+ 0.4- 170224 691 0.1- 0.0 170622 291 0.5+ 0.6-
170127 246 0.0 0.3- 170224 691 0.4+ 0.0 170629 291 0.4+ 0.4+
170127 246 0.2- 0.4- 170224 691 0.2+ 0.0 170629 291 0.2+ 0.1-
170128 691 0.5- 0.5- 170225 691 0.2+ 0.1- 170629 291 0.0 0.3-
170128 691 0.2+ 0.1+ 170225 691 0.0 0.0 170716 F51 0.1+ 0.2+
170128 691 0.2+ 0.2+ 170225 691 0.1- 0.2+ 170716 F51 0.1- 0.0
170129 246 0.6- 0.6- 170227 691 0.6- 0.2+ 170716 F51 0.0 0.0
170129 246 1.0+ 0.3- 170227 691 0.4- 0.0 170716 F51 0.0 0.3+
Ephemeris:
2017 BL6 a,e,i = 1.35, 0.23, 8 q = 1.0412
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 12 14 16 05 29.9 -23 45 12 1.9554 1.0630 17.9 16.6 23.7
...
2018 12 29 17 09 08.4 -24 50 41 1.9787 1.0924 18.6 16.7 23.8
...
2019 01 06 17 42 21.1 -24 44 51 1.9932 1.1121 19.2 16.9 23.8
...
2019 01 12 18 06 40.7 -24 23 06 2.0044 1.1284 19.7 17.1 23.9
2019 01 13 18 10 40.6 -24 18 06 2.0062 1.1313 19.8 17.1 23.9
2019 01 14 18 14 39.3 -24 12 44 2.0081 1.1341 19.9 17.2 23.9
...
2019 01 20 18 38 08.8 -23 32 54 2.0193 1.1519 20.6 17.5 24.0
...
2019 01 28 19 08 21.9 -22 21 09 2.0339 1.1770 21.7 18.0 24.0
...
2019 02 12 20 01 23.9 -19 19 24 2.0579 1.2269 24.3 19.3 24.2
A. U. Tomatic (C) Copyright 2019 MPC M.P.E.C. 2019-A209
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