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    • MPEC 2011-H60 : 2011 HE24

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    M.P.E.C. 2011-H60                                Issued 2011 Apr. 30, 11:20 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

                                   2011 HE24

Observations:
     K11H24E* C2011 04 28.35982 13 12 48.288-11 20 34.69         21.4 wLEH060F51
     K11H24E  C2011 04 28.37406 13 12 47.082-11 20 26.86         21.5 wLEH060F51
     K11H24E  C2011 04 28.38818 13 12 45.875-11 20 19.01         21.6 wLEH060F51
     K11H24E KC2011 04 29.25679013 11 34.31 -11 12 24.8          21.7 VtEH060H21
     K11H24E KC2011 04 29.26935213 11 33.22 -11 12 18.5          21.0 VtEH060H21
     K11H24E KC2011 04 29.28866613 11 31.53 -11 12 07.8          21.0 VtEH060H21
     K11H24E %C2011 04 29.29883 13 11 31.30 -11 11 58.7          21.1 RoEH060F65
     K11H24E %C2011 04 29.30070 13 11 31.16 -11 11 58.26         21.1 RoEH060F65
     K11H24E %C2011 04 29.30262 13 11 31.00 -11 11 57.2          21.3 RoEH060F65
     K11H24E %C2011 04 30.31388 13 10 08.413-11 02 40.88         20.9 RoEH060F65
     K11H24E %C2011 04 30.31650 13 10 08.143-11 02 38.95         21.0 RoEH060F65
     K11H24E %C2011 04 30.31910 13 10 07.934-11 02 37.88         20.7 RoEH060F65

Observer details:
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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Vorobjov, S. Foglia.  0.61-m f/4.0 astrograph + CCD.

Orbital elements:
2011 HE24                                                Earth MOID = 0.0856 AU
Epoch 2011 Apr. 29.0 TT = JDT 2455680.5                 MPC
M 317.94134              (2000.0)            P               Q
n   0.27933686     Peri.   50.67501     +0.68746966     +0.72535734
a   2.3176644      Node   262.79337     -0.67674166     +0.62227637
e   0.5270334      Incl.    2.03589     -0.26345054     +0.29432780
P   3.53           H   19.4           G   0.15
From 12 observations 2011 Apr. 28-30.

Ephemeris:
2011 HE24                a,e,i = 2.32, 0.53, 2                   q = 1.0962
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2011 03 31    13 47 51.6 -14 40 36   1.1392  2.1032   159.3     9.7    21.9
...
2011 04 15    13 31 02.6 -13 13 03   1.0029  2.0048   176.3     1.9    21.1
...
2011 04 23    13 20 13.5 -12 08 19   0.9532  1.9512   170.1     5.1    21.2
...
2011 04 29    13 11 55.6 -11 14 39   0.9265  1.9105   162.3     9.2    21.3
2011 04 30    13 10 33.8 -11 05 29   0.9229  1.9037   161.0     9.9    21.3
2011 05 01    13 09 12.6 -10 56 18   0.9195  1.8969   159.7    10.6    21.3
...
2011 05 07    13 01 26.2 -10 01 21   0.9040  1.8557   151.9    14.8    21.4
...
2011 05 15    12 52 29.7 -08 52 29   0.8946  1.8004   141.7    20.3    21.4
...
2011 05 30    12 42 12.1 -07 15 08   0.9025  1.6957   124.4    29.6    21.6

Timothy B. Spahr             (C) Copyright 2011 MPC           M.P.E.C. 2011-H60

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