• MPC Preparation (Info)

    • MPEC 2018-B123: 2018 BC5

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.

    Read MPEC 2018-B122 Read MPEC 2018-B124 

    M.P.E.C. 2018-B123                               Issued 2018 Jan. 25, 19:40 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

                                   2018 BC5

Observations:
     K18B05C  C2018 01 15.46795 10 19 45.481+10 41 55.41         22.3 wUEB123F51
     K18B05C  C2018 01 15.48026 10 19 50.042+10 41 52.01         22.0 wUEB123F51
     K18B05C  C2018 01 15.50502 10 19 59.230+10 41 44.86         21.9 wUEB123F51
     K18B05C* C2018 01 20.60902 10 56 17.489+10 10 50.82         21.6 wUEB123F51
     K18B05C  C2018 01 20.61616 10 56 20.663+10 10 47.59         21.5 wUEB123F51
     K18B05C  C2018 01 20.62307 10 56 23.753+10 10 44.43         21.3 wUEB123F51
     K18B05C  C2018 01 20.63000 10 56 26.854+10 10 41.07         21.6 wUEB123F51
     K18B05C |C2018 01 21.29182 11 01 40.89 +10 06 27.3          21.2 VuEB123807
     K18B05C |C2018 01 21.29933 11 01 44.36 +10 06 23.8          21.5 VuEB123807
     K18B05C |C2018 01 21.30657 11 01 47.65 +10 06 20.5          21.3 VuEB123807
     K18B05C KC2018 01 24.54261 11 28 43.92 +09 36 47.5          21.7 RoEB123291
     K18B05C KC2018 01 24.54552 11 28 45.40 +09 36 45.4                oEB123291
     K18B05C KC2018 01 24.54839 11 28 46.87 +09 36 43.7          21.3 RoEB123291
     K18B05C  C2018 01 25.38797 11 36 13.29 +09 28 02.4          21.0 GUEB123V06
     K18B05C  C2018 01 25.38998 11 36 14.35 +09 28 01.0          21.1 GUEB123V06
     K18B05C  C2018 01 25.39200 11 36 15.37 +09 28 00.2          21.9 GUEB123V06
     K18B05C  C2018 01 25.39402 11 36 16.36 +09 27 57.9          21.3 GUEB123V06

Observer details:
291 LPL/Spacewatch II.  Observer J. V. Scotti.  Measurer T. H. Bressi.  1.8-m
    f/2.7 reflector + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
    M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
    M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk.  1.8-m
    Ritchey-Chretien + CCD.
V06 Catalina Sky Survey-Kuiper.  Observer D. C. Fuls.  Measurers
    E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
    R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman,
    F. C. Shelly.  1.55-m reflector + CCD.

Orbital elements:
2018 BC5                                                 Earth MOID = 0.0733 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M 310.89861              (2000.0)            P               Q
n   0.28692537     Peri.   41.37960     -0.94741379     -0.31171048
a   2.2766176      Node   120.32034     +0.26710451     -0.89489352
e   0.5429582      Incl.    4.81207     +0.17624496     -0.31937776
P   3.44           H   23.7           G   0.15           U   5
Residuals in seconds of arc
180115 F51  0.1+  0.0     180120 F51  0.0   0.1-    180124 291  0.2+  0.1+
180115 F51  0.1-  0.1+    180121 807  0.4-  0.0     180125 V06  0.0   0.1+
180115 F51  0.0   0.0     180121 807  0.1+  0.1-    180125 V06  0.5+  0.0
180120 F51  0.1+  0.0     180121 807  0.2-  0.1-    180125 V06  0.2+  0.5+
180120 F51  0.1-  0.0     180124 291  0.2-  0.2+    180125 V06  0.5-  0.6-
180120 F51  0.0   0.0     180124 291  0.0   0.0

Ephemeris:
2018 BC5                 a,e,i = 2.28, 0.54, 5                   q = 1.0405
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 12 26    08 47 10.5 +12 02 35   0.3199  1.2535   142.9    28.3    23.0
...
2018 01 10    09 47 48.9 +11 05 55   0.2169  1.1658   144.0    29.7    22.0
...
2018 01 18    10 36 54.3 +10 28 15   0.1768  1.1262   140.7    33.6    21.6
...
2018 01 24    11 24 03.8 +09 42 30   0.1553  1.1006   135.5    38.8    21.4
2018 01 25    11 32 45.8 +09 32 31   0.1526  1.0967   134.4    39.9    21.4
2018 01 26    11 41 40.2 +09 21 44   0.1501  1.0929   133.3    41.0    21.4
...
2018 02 01    12 38 14.8 +07 59 55   0.1403  1.0728   125.4    48.4    21.4
...
2018 02 09    13 53 29.9 +05 37 49   0.1411  1.0531   114.6    58.4    21.7
...
2018 02 24    15 37 44.6 +01 37 47   0.1721  1.0407   102.6    68.1    22.4

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-B123

    Read MPEC 2018-B122 Read MPEC 2018-B124

    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)