[Iaude] MPEC A210: 2017 BG85 [a=2.38,e=0.46,i=7.9,H=18.9]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sun Jan 13 07:53:16 EST 2019


M.P.E.C. 2019-A210                               Issued 2019 Jan. 13, 12:49 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 BG85
 
                           Revision to MPEC 2017-C87
 
Additional Observations:
     K17B85G  C2010 08 01.49739421 47 44.738-01 29 20.69         21.4 GVEA210F51
     K17B85G  C2010 08 01.50983321 47 43.900-01 29 27.10         21.5 GVEA210F51
     K17B85G  C2010 08 05.51616821 43 21.372-02 05 40.69         21.1 GVEA210F51
     K17B85G  C2010 08 05.52669321 43 20.653-02 05 46.66         21.6 GVEA210F51
     K17B85G  C2010 08 06.50856821 42 15.502-02 15 04.14         21.4 GVEA210F51
     K17B85G  C2010 08 06.51985821 42 14.713-02 15 10.53         20.7 GVEA210F51
     K17B85G  C2010 08 31.43434021 17 33.902-06 27 52.92         21.8 GVEA210F51
     K17B85G  C2010 08 31.44593921 17 33.326-06 27 59.74         20.9 GVEA210F51
     K17B85G  C2014 09 19.33404423 44 50.513+00 34 51.90         22.3 GVEA210F51
     K17B85G  C2014 09 19.34549223 44 49.826+00 34 46.13         22.5 GVEA210F51
     K17B85G  C2014 09 19.36837223 44 48.495+00 34 34.17         22.3 GVEA210F51
 
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
100801 F51  1.9-  0.2-    140919 F51  0.1-  0.1-    MPO419558   -0.00048 day
 
Orbital elements:
2017 BG85                                                Earth MOID = 0.2922 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M 184.60837              (2000.0)            P               Q
n   0.26895647     Peri.   32.00833     -0.78686239     +0.61695433
a   2.3769209      Node   186.14800     -0.59113899     -0.76033355
e   0.4582307      Incl.    7.86792     -0.17720685     -0.20312618
P   3.66           H   18.9           G   0.15           U   1
Residuals in seconds of arc
100801 F51  0.0   0.1+    170222 G45  0.0   0.3-    170313 705  0.1-  0.3-
100801 F51  0.0   0.1+    170222 G45  0.1-  0.1+    170320 H21  0.2-  0.6+
100805 F51  0.0   0.2+    170222 G45  0.0   0.0     170320 H21  0.7+  0.7+
100805 F51  0.1+  0.1+    170222 G45  0.3-  0.1-    170322 H21  0.0   0.3+
100806 F51  0.0   0.1+    170222 G45  0.4+  0.7+    170322 H21  0.9-  0.4-
100806 F51  0.1-  0.2+    170222 G45  0.3+  0.0     170322 H21  0.1+  0.1+
100831 F51  0.1+  0.1+    170222 G45  0.3+  0.2+    170323 H21  0.2+  0.1-
100831 F51  0.3-  0.0     170222 G45  0.3-  0.0     170323 H21  0.4-  0.1-
140919 F51  0.1-  0.0     170224 703  0.3-  1.0+    170327 D29  0.2-  0.0
140919 F51  0.2-  0.2+    170224 703  0.2+  0.2+    170327 D29  0.2+  0.4+
140919 F51  0.2+  0.0     170224 703  1.6-  1.4+    170328 204  0.1-  0.2-
170102 F51  0.2+  0.0     170224 703  0.7-  1.1+    170328 204  0.1+  0.2-
170102 F51  0.1+  0.1-    170225 G96  0.1+  0.3+    170328 204  0.0   0.1-
170102 F51  0.1+  0.1+    170225 G96  0.3+  0.2+    170331 G96  0.1-  0.2+
170102 F51  0.1+  0.0     170225 G96  0.0   0.2-    170331 G96  0.3+  0.3+
170128 G96  0.3-  0.5+    170225 G96  0.1-  0.3+    170331 G96  0.2-  0.0
170128 G96  0.3-  0.0     170226 H21  0.2-  0.0     170331 G96  0.0   0.1-
170128 G96  0.1-  0.3-    170226 H21  0.2-  0.2+    170409 F51  0.2+  0.2-
170128 G96  0.2-  0.4+    170226 H21  0.3-  0.0     170409 F51  0.1+  0.0
170129 F51  0.0   0.0     170226 H45  0.0   0.4+    170409 F51  0.2+  0.2-
170129 F51  0.1-  0.1+    170226 H45  0.6-  0.0     170411 F51  0.0   0.2-
170129 F51  0.1+  0.0     170226 H45  0.4-  0.2+    170411 F51  0.1+  0.0
170204 G96  0.2+  0.2+    170226 H45  0.1-  0.0     170411 F51  0.1+  0.2-
170204 G96  0.0   0.3-    170226 H45  0.1-  0.3+    170411 F51  0.1+  0.1-
170204 G96  0.9-  0.0     170226 H45  0.6-  0.0     170414 H21  0.0   0.2+
170204 G96  0.1-  0.1+    170303 H21  0.1-  0.3-    170414 H21  0.2+  0.0
170214 F51  0.1+  0.0     170303 H21  0.1-  0.1-    170414 H21  0.1+  0.0
170214 F51  0.0   0.0     170303 H21  0.2-  0.3-    170419 H21  0.3-  0.3-
170214 F51  0.0   0.0     170303 D29  0.4-  0.1+    170419 H21  0.4+  0.9+
170214 K92  0.3+  0.4-    170303 D29  0.2+  0.2+    170527 T12  0.2-  0.2-
170214 K92  0.1+  0.5-    170303 D29  0.1+  0.0     170527 T12  0.5-  0.1-
170214 K92  0.2+  0.3-    170305 H21  0.1+  0.2-    170619 I52  0.1-  0.4-
170214 K92  0.4+  0.2-    170305 H21  0.0   0.3-    170619 I52  0.1-  0.2-
170214 K92  0.4+  0.3-    170305 H21  0.1-  0.2-    170619 I52  0.1-  0.2+
170214 246  0.6+  0.6+    170313 705  0.1-  0.1+    170619 691  0.4+  0.6+
170214 246  0.3+  0.7+    170313 705  0.0   0.1-    170619 691  0.1-  0.2+

Ephemeris:
2017 BG85                a,e,i = 2.38, 0.46, 8                   q = 1.2877
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 12 14    00 35 43.4 +00 44 07   2.9706  3.3888   106.8    16.1    24.8
...
2018 12 29    00 39 55.0 +01 08 42   3.2169  3.4074    92.7    16.8    25.0
...
2019 01 06    00 43 36.7 +01 31 24   3.3493  3.4163    85.5    16.7    25.1
...
2019 01 12    00 46 58.1 +01 52 07   3.4475  3.4225    80.3    16.5    25.1
2019 01 13    00 47 34.4 +01 55 50   3.4638  3.4235    79.5    16.4    25.2
2019 01 14    00 48 11.4 +01 59 39   3.4799  3.4244    78.6    16.4    25.2
...
2019 01 20    00 52 08.3 +02 23 58   3.5757  3.4301    73.6    16.0    25.2
...
2019 01 28    00 58 00.5 +02 59 54   3.6992  3.4369    67.0    15.3    25.3
...
2019 02 12    01 10 37.3 +04 15 53   3.9137  3.4478    55.3    13.6    25.3

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-A210



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