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  • MPEC 2012-H83 : 2012 HF31

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    M.P.E.C. 2012-H83                                Issued 2012 Apr. 29, 14:54 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 HF31
    
    Observations:
         K12H31F* C2012 04 24.35836 13 22 06.539-27 02 46.01         21.2 wLEH083F51
         K12H31F  C2012 04 24.37311 13 22 04.776-27 02 39.83         21.1 wLEH083F51
         K12H31F  C2012 04 24.38788 13 22 03.018-27 02 33.69         21.4 wLEH083F51
         K12H31F  C2012 04 24.40269 13 22 01.242-27 02 27.59         21.2 wLEH083F51
         K12H31F %C2012 04 25.35202513 20 12.00 -26 55 37.9          21.4 RtEH083F65
         K12H31F %C2012 04 25.35405113 20 11.74 -26 55 36.9          21.1 RtEH083F65
         K12H31F %C2012 04 25.35605113 20 11.49 -26 55 36.3          21.2 RtEH083F65
         K12H31F %C2012 04 25.35804813 20 11.25 -26 55 35.2          21.7 RtEH083F65
         K12H31F %C2012 04 25.36002913 20 11.02 -26 55 34.3          21.3 RtEH083F65
         K12H31F KC2012 04 29.24500 13 12 49.06 -26 24 33.1          20.8 RoEH083291
         K12H31F KC2012 04 29.24970 13 12 48.46 -26 24 30.3          20.9 RoEH083291
         K12H31F KC2012 04 29.25439 13 12 48.00 -26 24 28.6          20.8 RoEH083291
    
    Observer details:
    291 LPL/Spacewatch II.  Observer T. H. Bressi.  1.8-m f/2.7 reflector + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers N. Primak, A. Schultz, S. Watters,
        J. Thiel, T. Goggia.  Measurer PS1 Science Consortium.  1.8-m
        Ritchey-Chretien + CCD.
    F65 Haleakala-Faulkes Telescope North.  Observer T. Lister.  2.0-m f/10
        Ritchey-Chretien + CCD.
    
    Orbital elements:
    2012 HF31                                                Earth MOID = 0.0648 AU
    Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
    M 235.17732              (2000.0)            P               Q
    n   0.50948744     Peri.   30.22911     +0.99379878     +0.06675483
    a   1.5525552      Node   325.59385     -0.10309371     +0.85280717
    e   0.4388110      Incl.    9.05457     +0.04166141     +0.51794181
    P   1.93           H   19.3           G   0.15           U   8
    Residuals in seconds of arc
    120424 F51  0.0   0.0     120425 F65  0.3+  0.0     120425 F65  0.1-  0.1+
    120424 F51  0.0   0.1+    120425 F65  0.0   0.1+    120429 291  0.1+  0.0
    120424 F51  0.1+  0.0     120425 F65  0.1-  0.2-    120429 291  0.6-  0.4+
    120424 F51  0.0   0.1-    120425 F65  0.1-  0.0     120429 291  0.5+  0.3-
    
    Ephemeris:
    2012 HF31                a,e,i = 1.55, 0.44, 9                   q = 0.8713
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2012 03 30    14 05 30.9 -27 56 21   1.1156  2.0308   147.6    15.3    21.9
    ...
    2012 04 14    13 41 47.5 -27 54 43   1.0018  1.9782   161.3     9.4    21.4
    ...
    2012 04 22    13 26 39.3 -27 18 11   0.9639  1.9476   163.0     8.7    21.3
    ...
    2012 04 28    13 15 09.3 -26 34 53   0.9463  1.9235   160.0    10.3    21.3
    2012 04 29    13 13 16.6 -26 26 31   0.9443  1.9194   159.2    10.7    21.3
    2012 04 30    13 11 24.9 -26 17 52   0.9425  1.9152   158.4    11.2    21.3
    ...
    2012 05 06    13 00 45.6 -25 20 41   0.9369  1.8898   152.4    14.3    21.3
    ...
    2012 05 14    12 48 29.6 -23 55 35   0.9419  1.8543   143.5    18.9    21.5
    ...
    2012 05 29    12 33 40.8 -21 19 02   0.9816  1.7830   126.7    27.1    21.7
    
    A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-H83
    

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