[Iaude] MPEC X26: 2017 BG32 [a=1.60,e=0.23,i=24.0,H=18.6]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Mon Dec 3 22:43:17 EST 2018


M.P.E.C. 2018-X26                                Issued 2018 Dec. 4, 03:39 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 BG32
 
                          Revision to MPEC 2017-B148
 
Additional Observations:
     K17B32G |C2018 12 02.27943 07 31 19.50 -18 16 09.8          21.8 VuEX026807
     K17B32G |C2018 12 02.29030 07 31 19.17 -18 16 18.8          21.8 VuEX026807
     K17B32G |C2018 12 02.30139 07 31 18.84 -18 16 27.7          21.8 VuEX026807
     K17B32G |C2018 12 03.19759 07 30 52.78 -18 28 16.5          21.7 VuEX026807
     K17B32G |C2018 12 03.20935 07 30 52.40 -18 28 25.6          21.6 VuEX026807
     K17B32G |C2018 12 03.23301 07 30 51.61 -18 28 44.1          21.8 VuEX026807
 
Observer details:
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
    0.61-m f/6.5 astrograph + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
181202 807 18.1+  2.4+    181203 807 18.6+  2.3+    MPO441099   -0.010 day
 
Orbital elements:
2017 BG32                                                Earth MOID = 0.3877 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M 276.80453              (2000.0)            P               Q
n   0.48869406     Peri.   78.06980     -0.23121410     +0.97283835
a   1.5962883      Node   178.42408     -0.97281925     -0.23132992
e   0.2252664      Incl.   24.04608     +0.01275734     -0.00848553
P   2.02           H   18.6           G   0.15           U   3
Residuals in seconds of arc
170128 F51  0.0   0.1+    170130 I52  0.3+  0.1+    170219 474  0.2-  0.4-
170128 F51  0.1+  0.0     170130 I52  0.3+  0.2+    170219 474  0.3-  0.2-
170128 F51  0.0   0.0     170131 291  0.2-  0.0     170219 474  0.2+  0.1-
170129 807  0.0   0.1-    170131 291  0.3-  0.0     170225 691  0.4+  0.5+
170129 807  0.2+  0.1+    170131 291  0.1-  0.1-    170225 691  0.3-  0.2-
170129 807  0.4+  0.1-    170202 I52  0.2-  0.1-    170225 691  0.1-  0.7-
170129 H01  0.0   0.0     170202 T12  0.0   0.0     170227 691  0.9+  0.1-
170129 H01  0.0   0.0     170202 I52  0.1+  0.2-    170227 691  0.4-  0.4+
170129 568  0.0   0.0     170202 T12  0.0   0.0     170425 T12  0.3-  0.2+
170129 568  0.0   0.0     170202 T12  0.1-  0.0     170425 T12  0.3-  0.2+
170129 568  0.0   0.0     170202 I52  0.2-  0.3+    181202 807  0.3-  0.3+
170129 H01  0.1-  0.2+    170205 807  0.2+  0.1-    181202 807  0.2-  0.0
170129 H01  0.0   0.0     170205 807  0.0   0.0     181202 807  0.0   0.0
170130 807  0.2+  0.1-    170205 807  0.0   0.0     181203 807  0.2+  0.2-
170130 807  0.1+  0.0     170219 807  0.3-  0.1+    181203 807  0.2+  0.0
170130 807  0.1+  0.1+    170219 807  0.2+  0.3+    181203 807  0.0   0.2+
170130 I52  0.4+  0.4-    170219 807  0.1-  0.2+
170130 I52  0.4-  0.5+    170219 474  0.3-  0.1-

Ephemeris:
2017 BG32                a,e,i = 1.60, 0.23, 24                  q = 1.2367
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 04    07 29 23.3 -11 01 45   1.4771  1.9509   102.6    29.7    22.2
...
2018 11 19    07 34 03.1 -15 02 01   1.3409  1.9426   112.1    28.1    21.9
...
2018 11 27    07 33 14.4 -17 02 41   1.2745  1.9366   117.3    26.9    21.8
...
2018 12 03    07 30 58.5 -18 25 42   1.2285  1.9314   121.0    25.9    21.7
2018 12 04    07 30 27.3 -18 38 41   1.2212  1.9305   121.7    25.8    21.6
2018 12 05    07 29 53.6 -18 51 24   1.2140  1.9296   122.3    25.6    21.6
...
2018 12 11    07 25 40.6 -20 00 51   1.1734  1.9235   125.8    24.5    21.5
...
2018 12 19    07 17 55.0 -21 11 08   1.1266  1.9145   130.1    23.1    21.4
...
2019 01 03    06 58 20.9 -21 51 04   1.0656  1.8948   135.2    21.4    21.2

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X26



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