• MPC Preparation (Info)

    • MPEC 2019-B145: 2019 BG4

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    M.P.E.C. 2019-B145                               Issued 2019 Jan. 30, 04:48 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

                                   2019 BG4

Observations:
     K19B04G* C2019 01 27.26234 08 26 57.79 +14 27 51.8          21.5 GVEB145G96
     K19B04G  C2019 01 27.26747 08 26 58.69 +14 28 38.0          20.6 GVEB145G96
     K19B04G  C2019 01 27.27260 08 26 59.53 +14 29 25.4          20.7 GVEB145G96
     K19B04G  C2019 01 27.27773 08 27 00.45 +14 30 12.1          20.6 GVEB145G96
     K19B04G  C2019 01 27.46019 08 27 32.52 +14 57 42.3          20.7 GVEB145V06
     K19B04G  C2019 01 27.46201 08 27 32.87 +14 57 59.1          21.4 GVEB145V06
     K19B04G  C2019 01 27.46384 08 27 33.22 +14 58 15.7          21.3 GVEB145V06
     K19B04G  C2019 01 27.46567 08 27 33.54 +14 58 32.4          21.8 GVEB145V06
     K19B04G  C2019 01 28.29385 08 30 30.70 +17 05 58.6          21.4 GVEB145I52
     K19B04G  C2019 01 28.29718 08 30 31.34 +17 06 29.5          21.3 GVEB145I52
     K19B04G  C2019 01 28.30050 08 30 31.94 +17 07 00.7          21.6 GVEB145I52
     K19B04G  C2019 01 28.30383 08 30 32.53 +17 07 31.4          21.3 GVEB145I52
     K19B04G |C2019 01 29.21290 08 33 50.85 +19 31 44.0          21.2 VuEB145807
     K19B04G |C2019 01 29.21850 08 33 51.92 +19 32 37.1          20.9 VuEB145807
     K19B04G |C2019 01 29.22410 08 33 53.02 +19 33 30.6          20.9 VuEB145807
     K19B04G pC2019 01 29.81837508 36 12.83 +21 06 25.8          21.0 GVEB145L01
     K19B04G pC2019 01 29.82055908 36 13.31 +21 06 46.8          21.3 GVEB145L01
     K19B04G pC2019 01 29.82271408 36 13.75 +21 07 08.0          21.2 GVEB145L01
     K19B04G KC2019 01 29.82464808 36 14.21 +21 07 27.2          21.2 GVEB145L01

Observer details:
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
    0.61-m f/6.5 astrograph + CCD.
G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  Measurers B. M. Africano,
    E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne,
    R. L. Seaman, F. C. Shelly.  1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer H. Groeller.
    Measurers B. M. Africano, E. J. Christensen, G. A. Farneth, D. C. Fuls,
    A. R. Gibbs, A. D. Grauer, H. Groeller, R. A. Kowalski, S. M. Larson,
    G. J. Leonard, T. A. Pruyne, R. L. Seaman, F. C. Shelly.  1.0-m reflector
    + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
V06 Catalina Sky Survey-Kuiper.  Observer B. M. Africano.  Measurers
    B. M. Africano, E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs,
    A. D. Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard,
    T. A. Pruyne, R. L. Seaman, F. C. Shelly.  1.55-m reflector + CCD.

Orbital elements:
2019 BG4                                                 Earth MOID = 0.1014 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  38.98603              (2000.0)            P               Q
n   0.54036396     Peri.   15.70807     -0.80032779     -0.56104738
a   1.4928350      Node   128.20979     +0.51703498     -0.82437132
e   0.2768229      Incl.   15.60929     +0.30356261     -0.07508500
P   1.82           H   25.8           G   0.15           U   7
Residuals in seconds of arc
190127 G96  0.0   0.1-    190127 V06  0.0   0.3+    190129 807  0.6+  0.4+
190127 G96  0.3+  0.5-    190128 I52  0.6-  0.0     190129 L01  0.2-  0.2-
190127 G96  0.4-  0.3+    190128 I52  0.2-  0.1-    190129 L01  0.1-  0.4-
190127 G96  0.2+  0.4+    190128 I52  0.2-  0.1+    190129 L01  0.4-  0.1-
190127 V06  0.0   0.4-    190128 I52  0.5-  0.3-    190129 L01  0.2+  0.3+
190127 V06  0.2+  0.0     190129 807  0.3+  0.2+
190127 V06  0.3+  0.1+    190129 807  0.3+  0.1+

Ephemeris:
2019 BG4                 a,e,i = 1.49, 0.28, 16                  q = 1.0796
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 12 31    07 36 45.5 -19 43 55   0.2153  1.1455   134.9    37.5    24.3
...
2019 01 15    07 56 46.3 -08 44 01   0.1433  1.1099   149.9    26.4    23.0
...
2019 01 23    08 14 09.8 +04 35 29   0.1154  1.0960   164.9    13.5    22.1
...
2019 01 29    08 33 03.7 +18 56 51   0.1035  1.0883   177.3     2.4    21.3
2019 01 30    08 36 51.6 +21 36 09   0.1025  1.0872   175.5     4.1    21.4
2019 01 31    08 40 52.4 +24 17 36   0.1018  1.0862   172.8     6.5    21.5
...
2019 02 06    09 10 02.7 +40 05 58   0.1040  1.0817   155.7    22.0    22.1
...
2019 02 14    10 04 09.2 +56 02 25   0.1214  1.0796   137.1    38.5    22.9
...
2019 03 01    12 04 54.7 +67 06 01   0.1759  1.0876   119.3    52.6    24.1

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-B145

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