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  • MPEC 2012-W36 : 2012 WK4

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    M.P.E.C. 2012-W36                                Issued 2012 Nov. 23, 02:13 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 WK4
    
    Observations:
         K12W04K*QC2012 11 19.52368 02 16 13.90 -13 02 12.5          19.5 VrEW036E12
         K12W04K QC2012 11 19.53642 02 16 13.92 -13 01 37.8          18.9 VrEW036E12
         K12W04K QC2012 11 19.54914 02 16 14.12 -13 01 02.8          19.0 VrEW036E12
         K12W04K QC2012 11 19.56188 02 16 14.09 -13 00 26.0          19.8 VrEW036E12
         K12W04K QC2012 11 19.63113 02 16 14.99 -12 57 17.9          19.4 VrEW036E12
         K12W04K QC2012 11 19.63425 02 16 15.04 -12 57 09.4          19.3 VrEW036E12
         K12W04K QC2012 11 19.70969 02 16 16.19 -12 53 41.9                rEW036E12
         K12W04K QC2012 11 19.71487 02 16 16.37 -12 53 28.0          19.6 VrEW036E12
         K12W04K KC2012 11 19.86293 02 16 23.02 -12 47 47.0          18.9 VuEW036B86
         K12W04K KC2012 11 19.87500 02 16 23.20 -12 47 14.4          19.2 VuEW036B86
         K12W04K KC2012 11 19.88707 02 16 23.38 -12 46 41.8          19.4 VuEW036B86
         K12W04K |C2012 11 20.02296 02 16 28.16 -12 39 44.7          19.8 VuEW036807
         K12W04K |C2012 11 20.03154 02 16 28.27 -12 39 22.1          19.8 VuEW036807
         K12W04K KC2012 11 20.16798 02 16 29.23 -12 33 16.0          19.2 VvEW036I39
         K12W04K KC2012 11 20.19203 02 16 29.55 -12 32 12.3          19.3 VvEW036I39
         K12W04K QC2012 11 20.43395 02 16 38.44 -12 21 35.9          19.7 VrEW036E12
         K12W04K QC2012 11 20.68552 02 16 41.68 -12 10 35.0                rEW036E12
         K12W04K KC2012 11 20.84942 02 16 48.68 -12 04 23.0          19.6 VuEW036595
         K12W04K KC2012 11 20.86941 02 16 48.93 -12 03 32.1                uEW036595
         K12W04K KC2012 11 20.91259 02 16 49.70 -12 01 39.4          19.2 RtEW036204
         K12W04K KC2012 11 20.92034 02 16 49.80 -12 01 20.0                tEW036204
         K12W04K KC2012 11 20.92803 02 16 49.95 -12 00 59.9                tEW036204
         K12W04K |C2012 11 21.07724 02 16 54.91 -11 53 47.8          19.6 VuEW036807
         K12W04K |C2012 11 21.08056 02 16 54.95 -11 53 39.5          19.5 VuEW036807
         K12W04K |C2012 11 21.08675 02 16 55.04 -11 53 23.5          19.7 VuEW036807
         K12W04K |C2012 11 21.08964 02 16 55.06 -11 53 16.1          19.6 VuEW036807
         K12W04K KC2012 11 21.15572 02 16 56.85 -11 51 11.6          19.3 RqEW036H36
         K12W04K KC2012 11 21.17568 02 16 57.08 -11 50 21.1          20.0 RqEW036H36
         K12W04K KC2012 11 21.21481 02 16 57.55 -11 48 41.1          19.6 RqEW036H36
         K12W04K |C2012 11 22.01545 02 17 21.28 -11 14 23.3          19.8 VuEW036807
         K12W04K |C2012 11 22.01947 02 17 21.34 -11 14 13.6          19.8 VuEW036807
         K12W04K |C2012 11 22.02349 02 17 21.40 -11 14 03.8          19.9 VuEW036807
         K12W04K |C2012 11 22.02751 02 17 21.46 -11 13 53.9          19.9 VuEW036807
         K12W04K |C2012 11 22.03151 02 17 21.52 -11 13 44.1          20.0 VuEW036807
         K12W04K KC2012 11 22.18777802 17 24.32 -11 08 03.1          19.4 VrEW036H21
         K12W04K KC2012 11 22.19407402 17 24.45 -11 07 47.7          19.5 VrEW036H21
         K12W04K KC2012 11 22.20062002 17 24.51 -11 07 31.9          19.4 VrEW036H21
         K12W04K QC2012 11 22.55945 02 17 34.36 -10 52 10.1          19.4 VrEW036E12
         K12W04K |C2012 11 23.02010 02 17 49.65 -10 33 42.1          20.1 VoEW036807
         K12W04K |C2012 11 23.02411 02 17 49.73 -10 33 32.4          20.0 VoEW036807
         K12W04K |C2012 11 23.02812 02 17 49.83 -10 33 22.6          19.8 VoEW036807
         K12W04K |C2012 11 23.03213 02 17 49.86 -10 33 13.1          20.0 VoEW036807
    
    Observer details:
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.38-m f/6.8 reflector
        + CCD.
    595 Farra d'Isonzo.  Observers E. Pettarin, F. Piani.  Measurer E. Pettarin.
        0.40-m f/4.5 reflector + CCD.
    807 Cerro Tololo.  Observers T. Linder, R. Holmes, R. Sampson.  Measurers
        T. Linder, R. Holmes, R. Sampson, C. Guerrero.  0.41-m f/11
        Ritchey-Chretien + CCD.
    B86 Sternwarte Hagen.  Observer M. Klein.  0.50-m f/3.0 Deltagraph + CCD.
    E12 Siding Spring Survey.  Observer R. H. McNaught.  Measurers A. Boattini,
        E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
        S. M. Larson, R. H. McNaught.  0.5-m Uppsala Schmidt + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers L. Buzzi, H. Devore, S. Foglia, T. Vorobjov.  0.61-m f/4.0
        astrograph + CCD.
    H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
    I39 Observatorio Cruz del Sur, San Justo.  Observers A. Chapman, N. D. Diaz.
        Measurer A. Chapman.  0.20-m f/4 reflector + CCD.
    
    Orbital elements:
    2012 WK4                                                 Earth MOID = 0.0591 AU
    Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
    M  26.71198              (2000.0)            P               Q
    n   0.74531939     Peri.  161.70312     +0.68144199     +0.73098265
    a   1.2047801      Node   151.22006     -0.68048904     +0.65097127
    e   0.3072593      Incl.    4.29685     -0.26939093     +0.20469678
    P   1.32           H   21.3           G   0.15           U   8
    Residuals in seconds of arc
    121119 E12  0.8+  0.5-    121120 I39  0.3+  0.5-    121121 H36  0.6-  0.1+
    121119 E12  0.6-  0.5-    121120 E12  0.2+  0.0     121122 807  0.1+  0.1-
    121119 E12  0.6+  0.2-    121120 E12  0.7+  0.1+    121122 807  0.0   0.2-
    121119 E12  1.6-  1.8+    121120 595  0.6+  0.2-    121122 807  0.0   0.3-
    121119 E12  0.3+  0.1+    121120 595  0.1+  0.8-    121122 807  0.0   0.2-
    121119 E12  0.4+  0.0     121120 204  0.1+  0.4+    121122 807  0.0   0.2-
    121119 E12  0.8-  0.0     121120 204  0.1-  0.2-    121122 H21  0.6-  0.5+
    121119 E12  0.3+  0.3-    121120 204  0.5+  0.0     121122 H21  0.0   0.4+
    121119 B86  0.5-  0.6-    121121 807  0.0   0.1-    121122 H21  0.6-  0.0
    121119 B86  0.4-  0.3-    121121 807  0.0   0.3-    121122 E12  0.3-  0.3+
    121119 B86  0.2-  0.1-    121121 807  0.2+  0.0     121123 807  0.2-  0.6-
    121120 807  0.2+  0.1-    121121 807  0.0   0.0     121123 807  0.0   0.4-
    121120 807  0.2+  0.1-    121121 H36  0.5+  0.4+    121123 807  0.5+  0.0
    121120 I39  0.1+  0.2+    121121 H36  0.0   0.0     121123 807  0.1-  0.0
    
    Ephemeris:
    2012 WK4                 a,e,i = 1.20, 0.31, 4                   q = 0.8346
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2012 10 24    01 58 42.5 -60 46 00   0.07239 1.0187   107.5    68.6    18.1
    ...
    2012 11 08    02 12 12.5 -24 35 14   0.1346  1.0940   137.6    37.6    18.7
    ...
    2012 11 16    02 14 51.8 -15 54 49   0.1795  1.1343   141.2    33.1    19.2
    ...
    2012 11 22    02 17 19.3 -11 15 18   0.2168  1.1643   141.1    32.2    19.7
    2012 11 23    02 17 47.7 -10 34 46   0.2233  1.1692   140.9    32.2    19.7
    2012 11 24    02 18 17.2 -09 55 38   0.2299  1.1742   140.7    32.2    19.8
    ...
    2012 11 30    02 21 39.4 -06 25 47   0.2712  1.2034   138.8    32.7    20.2
    ...
    2012 12 08    02 27 18.3 -02 34 54   0.3308  1.2414   135.1    34.1    20.8
    ...
    2012 12 23    02 41 40.6 +03 07 30   0.4563  1.3083   126.7    37.1    21.7
    
    A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-W36
    

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