• Processing (Info)

    • MPEC 2012-H40 : 2012 HQ2

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    M.P.E.C. 2012-H40                                Issued 2012 Apr. 21, 11:17 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 HQ2

Observations:
     K12H02Q* C2012 04 20.36424 15 02 32.49 -13 23 42.1          19.9 VrEH040G96
     K12H02Q  C2012 04 20.37120 15 02 33.64 -13 23 36.9          19.6 VrEH040G96
     K12H02Q  C2012 04 20.37824 15 02 34.76 -13 23 31.5          19.7 VrEH040G96
     K12H02Q  C2012 04 20.38523 15 02 35.88 -13 23 26.3          19.8 VrEH040G96
     K12H02Q  C2012 04 20.44890 15 02 46.21 -13 22 36.0          19.9 VrEH040G96
     K12H02Q  C2012 04 20.45024 15 02 46.46 -13 22 34.6          19.7 VrEH040G96
     K12H02Q  C2012 04 20.45154 15 02 46.68 -13 22 34.0          19.8 VrEH040G96
     K12H02Q  C2012 04 20.45288 15 02 46.86 -13 22 32.7          19.9 VrEH040G96
     K12H02Q KC2012 04 20.51669 15 03 03.71 -13 19 58.1          19.9 RoEH040474
     K12H02Q KC2012 04 20.52021 15 03 04.28 -13 19 55.4          19.8 RoEH040474
     K12H02Q KC2012 04 20.52373 15 03 04.87 -13 19 53.0          19.8 RoEH040474
     K12H02Q KC2012 04 20.52725 15 03 05.44 -13 19 50.5          19.7 RoEH040474
     K12H02Q KC2012 04 21.21691 15 05 12.81 -13 11 46.8          19.8 RuEH040821
     K12H02Q KC2012 04 21.21891 15 05 13.09 -13 11 45.5          20.0 RuEH040821
     K12H02Q KC2012 04 21.22179 15 05 13.53 -13 11 43.2          20.0 RuEH040821
     K12H02Q  C2012 04 21.27274 15 05 25.17 -13 12 33.7          20.1 RcEH040651
     K12H02Q  C2012 04 21.27383 15 05 25.26 -13 12 33.0          20.1 RcEH040651
     K12H02Q  C2012 04 21.27492 15 05 25.48 -13 12 32.4          20.2 RcEH040651
     K12H02Q KC2012 04 21.38322 15 05 40.50 -13 11 22.3          19.6 RuEH040H36
     K12H02Q KC2012 04 21.38845 15 05 41.23 -13 11 18.9          19.7 RuEH040H36
     K12H02Q KC2012 04 21.39368 15 05 42.03 -13 11 14.6          20.4 RuEH040H36

Observer details:
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.
651 Grasslands Observatory, Tucson.  Observer J. E. McGaha.  0.62-m f/5.1
    Newtonian reflector + CCD.
821 Cordoba-Bosque Alegre.  Observers C. Colazo, P. Guzzo.  Measurer C. Colazo.
    1.54-m f/4.8 reflector + CCD.
G96 Mt. Lemmon Survey.  Observer A. R. Gibbs.  Measurers J. D. Ahern,
    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.
H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.

Orbital elements:
2012 HQ2                                                 Earth MOID = 0.0538 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
M 357.43296              (2000.0)            P               Q
n   0.42025557     Peri.  334.01961     -0.99962848     -0.01902044
a   1.7651992      Node   204.91385     +0.02476133     -0.93309075
e   0.4067801      Incl.    2.65621     -0.01139172     -0.35913769
P   2.35           H   24.1           G   0.15           U   8
Residuals in seconds of arc
120420 G96  0.2-  0.0     120420 G96  0.4-  0.1+    120421 821  0.2-  0.0
120420 G96  0.2+  0.0     120420 474  0.2+  0.1-    120421 651  0.7+  0.2+
120420 G96  0.1+  0.0     120420 474  0.0   0.1+    120421 651  0.4-  0.2+
120420 G96  0.0   0.1-    120420 474  0.2+  0.0     120421 651  0.4+  0.0
120420 G96  0.3-  0.0     120420 474  0.1+  0.0     120421 H36  0.6+  0.3+
120420 G96  0.1+  0.3+    120421 821  0.1-  0.2-    120421 H36  0.4-  0.3-
120420 G96  0.2+  0.1-    120421 821  0.4-  0.3-    120421 H36  0.4-  0.1+

Ephemeris:
2012 HQ2                 a,e,i = 1.77, 0.41, 3                   q = 1.0472
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2012 03 22    10 49 11.5 -15 04 43   0.05535 1.0473   156.2    22.6    19.0
...
2012 04 06    13 40 30.4 -16 49 20   0.06369 1.0625   165.8    13.4    19.0
...
2012 04 14    14 36 11.2 -14 51 16   0.08037 1.0801   162.9    15.8    19.7
...
2012 04 20    15 01 21.2 -13 27 12   0.09629 1.0972   163.0    15.5    20.1
2012 04 21    15 04 32.7 -13 14 51   0.09918 1.1003   163.2    15.3    20.1
2012 04 22    15 07 30.2 -13 03 03   0.1021  1.1035   163.4    15.1    20.2
...
2012 04 28    15 21 10.6 -12 03 45   0.1212  1.1246   165.5    12.9    20.5
...
2012 05 06    15 31 53.5 -11 13 30   0.1501  1.1566   169.2     9.4    20.9
...
2012 05 21    15 40 45.7 -10 49 12   0.2170  1.2265   170.2     8.0    21.8

A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-H40

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