[Iaude] MPEC A209: 2017 BL6 [a=1.35,e=0.23,i=8.5,H=21.2]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sun Jan 13 07:51:17 EST 2019


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 at 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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