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  • MPEC 2012-H18 : 2012 HQ

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    M.P.E.C. 2012-H18                                Issued 2012 Apr. 18, 00:29 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 HQ
    
    Observations:
         K12H00Q* C2012 04 16.40683 13 06 13.506-10 45 46.43         21.0 wLEH018F51
         K12H00Q  C2012 04 16.42004 13 06 07.581-10 46 30.06         20.4 wLEH018F51
         K12H00Q  C2012 04 16.43328 13 06 01.634-10 47 13.27         20.4 wLEH018F51
         K12H00Q |C2012 04 17.11905 13 00 57.06 -11 26 32.5          20.3 VoEH018807
         K12H00Q |C2012 04 17.12271 13 00 55.15 -11 26 46.4          20.6 VoEH018807
         K12H00Q |C2012 04 17.12641 13 00 53.16 -11 27 01.0          20.3 VoEH018807
         K12H00Q |C2012 04 17.13007 13 00 51.23 -11 27 15.2          20.6 VoEH018807
         K12H00Q |C2012 04 17.13368 13 00 49.28 -11 27 29.5          20.5 VoEH018807
         K12H00Q %C2012 04 17.43854512 58 11.02 -11 49 25.0          19.7 RtEH018F65
         K12H00Q %C2012 04 17.44047512 58 09.92 -11 49 33.0          20.5 RtEH018F65
         K12H00Q %C2012 04 17.44241212 58 08.78 -11 49 41.5          20.4 RtEH018F65
         K12H00Q %C2012 04 17.44435312 58 07.68 -11 49 49.2          19.9 RtEH018F65
    
    Observer details:
    807 Cerro Tololo.  Observers R. Holmes, T. Linder, V. Hoette.  Measurers
        R. Holmes, T. Linder.  0.41-m f/11 Ritchey-Chretien + 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 HQ                                                  Earth MOID = 0.0164 AU
    Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
    M 330.78055              (2000.0)            P               Q
    n   0.33198455     Peri.  271.08068     +0.41147384     +0.91042311
    a   2.0656535      Node    23.36144     -0.78759492     +0.37873097
    e   0.6780754      Incl.    6.17460     -0.45867582     +0.16641101
    P   2.97           H   25.1           G   0.15           U   8
    Residuals in seconds of arc
    120416 F51  0.1+  0.2+    120417 807  0.6+  0.2+    120417 F65  0.0   0.2+
    120416 F51  0.1-  0.2-    120417 807  0.1-  0.0     120417 F65  0.2+  0.2+
    120416 F51  0.1-  0.1+    120417 807  0.1-  0.0     120417 F65  0.3-  0.3-
    120417 807  0.4+  0.1-    120417 807  0.8-  0.2-    120417 F65  0.0   0.1+
    
    Ephemeris:
    2012 HQ                  a,e,i = 2.07, 0.68, 6                   q = 0.6650
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2012 03 19    13 44 14.8 -04 50 31   0.4441  1.4038   152.2    19.3    25.1
    ...
    2012 04 03    13 40 10.9 -06 01 43   0.2477  1.2427   167.4    10.1    23.2
    ...
    2012 04 11    13 28 27.6 -07 43 30   0.1529  1.1549   177.6     2.1    21.6
    ...
    2012 04 17    13 01 52.7 -11 19 31   0.08590 1.0886   170.4     8.9    20.6
    2012 04 18    12 52 50.7 -12 30 20   0.07521 1.0776   167.2    11.9    20.4
    2012 04 19    12 40 46.4 -14 02 26   0.06475 1.0666   163.2    15.8    20.2
    ...
    2012 04 25    06 42 55.4 -28 14 06   0.02603 1.0008    77.7   100.9    20.8
    ...
    2012 05 03    02 50 48.2 -04 16 01   0.09950 0.9153    20.1   157.8    30.2
    ...
    2012 05 18    02 21 46.5 +01 52 35   0.2776  0.7718    26.0   144.9    29.3
    
    A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-H18
    

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