• Processing (Info)

    • MPEC 2012-W34 : 2012 WH4

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    M.P.E.C. 2012-W34                                Issued 2012 Nov. 23, 02:08 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
   on behalf of Commission 20 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

                                   2012 WH4

Observations:
     K12W04H* C2012 11 17.06870 21 27 32.50 -14 39 03.0          21.1 VrEW034G96
     K12W04H  C2012 11 17.07499 21 27 33.22 -14 39 09.6          21.1 VrEW034G96
     K12W04H  C2012 11 17.08128 21 27 33.91 -14 39 16.5          20.8 VrEW034G96
     K12W04H  C2012 11 17.08750 21 27 34.59 -14 39 23.3          21.1 VrEW034G96
     K12W04H  C2012 11 17.12061 21 27 38.30 -14 39 58.5          21.0 VrEW034G96
     K12W04H  C2012 11 17.13050 21 27 39.38 -14 40 08.9          20.3 VrEW034G96
     K12W04H  C2012 11 17.14038 21 27 40.46 -14 40 20.0          20.8 VrEW034G96
     K12W04H  C2012 11 17.15031 21 27 41.54 -14 40 30.1          21.1 VrEW034G96
     K12W04H KC2012 11 18.04449721 29 22.99 -14 56 19.5          20.2 VvEW034H21
     K12W04H |C2012 11 18.04901 21 29 23.41 -14 56 16.9          20.2 VuEW034807
     K12W04H |C2012 11 18.05309 21 29 23.86 -14 56 20.8          20.5 VuEW034807
     K12W04H |C2012 11 18.05718 21 29 24.32 -14 56 25.2          20.4 VuEW034807
     K12W04H |C2012 11 18.06126 21 29 24.78 -14 56 29.5          20.2 VuEW034807
     K12W04H |C2012 11 18.06533 21 29 25.23 -14 56 33.7          20.5 VuEW034807
     K12W04H KC2012 11 18.06905221 29 25.81 -14 56 45.0          20.3 VvEW034H21
     K12W04H KC2012 11 18.38721 21 30 02.11 -15 02 08.6          20.2 RoEW034474
     K12W04H KC2012 11 18.39002 21 30 02.46 -15 02 11.7          20.6 RoEW034474
     K12W04H KC2012 11 18.39893 21 30 03.41 -15 02 19.8          20.0 RoEW034474
     K12W04H |C2012 11 19.05006 21 31 18.40 -15 13 36.1          20.1 VuEW034807
     K12W04H |C2012 11 19.05414 21 31 18.88 -15 13 40.3          19.7 VuEW034807
     K12W04H |C2012 11 19.05820 21 31 19.35 -15 13 44.3          20.1 VuEW034807
     K12W04H FC2012 11 22.00381121 37 07.25 -16 02 34.6                rEW034H21
     K12W04H FC2012 11 22.01957021 37 09.09 -16 02 49.3                rEW034H21
     K12W04H HC2012 11 22.13615 21 37 23.06 -16 04 41.0          19.5 RoEW034291
     K12W04H HC2012 11 22.13716 21 37 23.15 -16 04 41.3          19.5 RoEW034291
     K12W04H HC2012 11 22.13817 21 37 23.30 -16 04 42.5          19.5 RoEW034291

Observer details:
291 LPL/Spacewatch II.  Observer J. V. Scotti.  1.8-m f/2.7 reflector + CCD.
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
    P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes, R. Sampson.  0.41-m f/11
    Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observer A. D. Grauer.  Measurers A. Boattini,
    E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson,
    R. A. Kowalski, S. M. Larson, R. H. McNaught.  1.5-m reflector + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Vorobjov, L. Buzzi, S. Foglia, H. Devore.  0.61-m f/4.0
    astrograph + CCD.

Orbital elements:
2012 WH4
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
M 337.90758              (2000.0)            P               Q
n   0.17467735     Peri.  233.06996     +0.62755345     -0.77803201
a   3.1694092      Node   177.42989     +0.73952909     +0.60732824
e   0.5648111      Incl.   40.34841     -0.24346127     -0.16068167
P   5.64           H   17.3           G   0.15           U   8
Residuals in seconds of arc
121117 G96  0.5-  0.0     121118 807  0.1+  0.3-    121119 807  0.3-  0.2-
121117 G96  0.1-  0.1+    121118 807  0.0   0.1+    121119 807  0.1-  0.3-
121117 G96  0.2-  0.0     121118 807  0.0   0.0     121119 807  0.0   0.1-
121117 G96  0.3-  0.2-    121118 807  0.1+  0.1-    121122 H21  0.1-  0.0
121117 G96  0.5+  0.0     121118 807  0.1-  0.0     121122 H21  0.4-  0.4+
121117 G96  0.3+  0.2+    121118 H21  0.7+  0.3-    121122 291  0.2+  0.4-
121117 G96  0.2+  0.4-    121118 474  0.0   0.4+    121122 291  0.2-  0.2+
121117 G96  0.1-  0.1+    121118 474  0.5+  0.2+    121122 291  0.2+  0.0
121118 H21  0.2-  0.5-    121118 474  0.4-  1.3+

Ephemeris:
2012 WH4                 a,e,i = 3.17, 0.56, 40                  q = 1.3793
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2012 10 24    20 51 13.4 -05 34 02   1.2426  1.7527   102.6    33.6    20.4
...
2012 11 08    21 11 43.1 -11 40 34   1.3211  1.6651    91.0    36.5    20.5
...
2012 11 16    21 25 33.2 -14 19 38   1.3670  1.6211    85.4    37.4    20.5
...
2012 11 22    21 37 06.8 -16 02 25   1.4019  1.5897    81.4    37.9    20.6
2012 11 23    21 39 07.8 -16 18 13   1.4077  1.5846    80.8    38.0    20.6
2012 11 24    21 41 10.4 -16 33 37   1.4134  1.5795    80.1    38.0    20.6
...
2012 11 30    21 53 56.3 -17 58 19   1.4477  1.5501    76.5    38.2    20.6
...
2012 12 08    22 12 13.1 -19 31 07   1.4919  1.5137    72.1    38.3    20.6
...
2012 12 23    22 49 55.1 -21 26 51   1.5674  1.4552    64.9    37.8    20.6

A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-W34

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