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  • MPEC 2012-H51 : 2012 HN8

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    M.P.E.C. 2012-H51                                Issued 2012 Apr. 22, 13:06 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 HN8
    
    Observations:
         K12H08N* C2012 04 21.44624 16 41 17.19 +20 22 06.2          19.5 VrEH051703
         K12H08N  C2012 04 21.45190 16 41 18.38 +20 22 37.3          19.6 VrEH051703
         K12H08N  C2012 04 21.46318 16 41 20.68 +20 23 38.4          19.5 VrEH051703
         K12H08N  C2012 04 21.48479 16 41 25.19 +20 25 35.8          19.1 RoEH051H01
         K12H08N  C2012 04 21.49014 16 41 26.42 +20 26 06.8          19.6 VrEH051703
         K12H08N  C2012 04 21.49082 16 41 26.48 +20 26 09.9          20.1 VrEH051703
         K12H08N  C2012 04 21.49091 16 41 26.48 +20 26 09.0          19.1 RoEH051H01
         K12H08N  C2012 04 21.49437 16 41 27.21 +20 26 27.9          19.4 RoEH051H01
         K12H08N KC2012 04 21.92434 16 43 04.87 +21 05 14.0                uEH051J95
         K12H08N KC2012 04 21.93658 16 43 07.46 +21 06 20.4                uEH051J95
         K12H08N KC2012 04 21.94169 16 43 08.57 +21 06 48.7          19.3 RuEH051J95
         K12H08N  C2012 04 22.44001 16 44 57.14 +21 51 55.2          19.8 RoEH051H01
         K12H08N  C2012 04 22.44539 16 44 58.38 +21 52 24.9          20.3 VrEH051G96
         K12H08N  C2012 04 22.44586 16 44 58.48 +21 52 27.6          20.3 VrEH051G96
         K12H08N  C2012 04 22.44630 16 44 58.59 +21 52 29.8          20.2 VrEH051G96
         K12H08N  C2012 04 22.44676 16 44 58.66 +21 52 32.3          20.5 VrEH051G96
         K12H08N  C2012 04 22.44730 16 44 58.67 +21 52 34.3          19.9 RoEH051H01
         K12H08N  C2012 04 22.45400 16 45 00.07 +21 53 10.2          19.9 RoEH051H01
         K12H08N  C2012 04 22.46092 16 45 01.52 +21 53 47.4          19.8 RoEH051H01
    
    Observer details:
    703 Catalina Sky Survey.  Observer A. Boattini.  Measurers J. D. Ahern,
        E. C. Beshore, A. Boattini, G. J. Garradd, A. R. Gibbs, P. Tricarico,
        A. D. Grauer, R. E. Hill, R. A. Kowalski, S. M. Larson, R. H. McNaught.
        0.68-m Schmidt + CCD.
    G96 Mt. Lemmon Survey.  Observer A. R. Gibbs.  Measurers E. C. Beshore,
        A. Boattini, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
        S. M. Larson, R. H. McNaught.  1.5-m reflector + CCD.
    H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
        Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
        + CCD.
    
    Orbital elements:
    2012 HN8                                                 Earth MOID = 0.2336 AU
    Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
    M 330.55705              (2000.0)            P               Q
    n   0.40229560     Peri.   55.89229     -0.34763984     +0.93300652
    a   1.8173526      Node   194.65778     -0.93473091     -0.35264704
    e   0.3764222      Incl.   21.55821     -0.07365231     +0.07168608
    P   2.45           H   20.9           G   0.15           U   8
    Residuals in seconds of arc
    120421 703  0.1-  0.7-    120421 H01  0.4+  0.3+    120422 G96  0.2+  0.1-
    120421 703  0.0   0.5-    120421 J95  0.7+  0.2+    120422 G96  0.2-  0.1-
    120421 703  0.8-  0.8-    120421 J95  0.3-  0.3-    120422 H01  0.0   0.1+
    120421 H01  0.3+  0.2+    120421 J95  0.3-  0.0     120422 H01  0.1+  0.0
    120421 703  0.5+  1.0+    120422 H01  0.1-  0.1+    120422 H01  0.1+  0.1+
    120421 703  0.7-  0.4+    120422 G96  0.1-  0.1-
    120421 H01  0.4+  0.2+    120422 G96  0.1-  0.1+
    
    Ephemeris:
    2012 HN8                 a,e,i = 1.82, 0.38, 22                  q = 1.1333
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2012 03 23    14 58 31.3 -17 23 08   0.3740  1.2899   135.4    32.9    20.7
    ...
    2012 04 07    15 48 31.5 -01 28 00   0.2856  1.2300   138.7    32.5    20.0
    ...
    2012 04 15    16 17 29.4 +10 22 23   0.2633  1.2027   134.5    36.5    19.9
    ...
    2012 04 21    16 39 38.5 +19 41 27   0.2591  1.1847   128.8    41.4    20.0
    2012 04 22    16 43 20.0 +21 12 22   0.2593  1.1819   127.7    42.3    20.0
    2012 04 23    16 47 01.2 +22 41 59   0.2599  1.1792   126.7    43.2    20.0
    ...
    2012 04 29    17 08 54.1 +31 02 27   0.2680  1.1645   120.0    48.5    20.2
    ...
    2012 05 07    17 36 53.7 +40 02 17   0.2888  1.1490   112.0    54.5    20.5
    ...
    2012 05 22    18 22 32.9 +50 32 41   0.3414  1.1340   102.1    60.8    21.0
    
    A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-H51
    

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