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MPEC 2012-H17 : COMET P/2012 G1 (PANSTARRS)

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Read MPEC 2012-H16 Read MPEC 2012-H18 

M.P.E.C. 2012-H17                                Issued 2012 Apr. 17, 18:14 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 http://www.minorplanetcenter.net/    ISSN 1523-6714

                          COMET P/2012 G1 (PANSTARRS)

Observations:
    PK12G010  C2012 04 13.35047 12 04 33.746-20 51 01.43         21.1 TLEH017F51
    PK12G010  C2012 04 13.36369 12 04 33.295-20 50 57.14         20.9 TLEH017F51
    PK12G010  C2012 04 13.37693 12 04 32.851-20 50 52.75         21.0 TLEH017F51
    PK12G010  C2012 04 13.39016 12 04 32.397-20 50 48.53         21.0 TLEH017F51
    PK12G010  C2012 04 14.10070112 04 10.019-20 46 49.97         20.4 TtEH017I33
    PK12G010  C2012 04 14.10217112 04 09.984-20 46 49.13         20.2 TtEH017I33
    PK12G010  C2012 04 14.10373412 04 09.920-20 46 48.64         20.3 TtEH017I33
    PK12G010 |C2012 04 14.32726 12 04 02.69 -20 45 39.4                cEH017H06
    PK12G010 |C2012 04 14.33089 12 04 02.52 -20 45 38.4          19.9 TcEH017H06
    PK12G010 HC2012 04 16.28202 12 03 04.01 -20 34 38.2                oEH017291
    PK12G010 HC2012 04 16.28634 12 03 03.88 -20 34 36.4                oEH017291
    PK12G010 HC2012 04 16.29063 12 03 03.78 -20 34 35.2                oEH017291
    PK12G010 $C2012 04 16.39881 12 03 00.62 -20 33 58.4          19.8 ToEH017F65
    PK12G010 $C2012 04 16.40007 12 03 00.60 -20 33 57.3          20.0 ToEH017F65
    PK12G010 7C2012 04 16.44232 12 02 59.27 -20 33 43.6                tEH017F65
    PK12G010 7C2012 04 16.45121 12 02 58.96 -20 33 39.9          20.0 TtEH017F65

Observer details:
291 LPL/Spacewatch II.  Observer J. V. Scotti.  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.  Observers K. Rochowicz, G. Sostero,
    E. Guido, N. Howes, P. Miller, P. Roche, A. Tripp, R. Miles, R. Holmes,
    S. Foglia, L. Buzzi.  Measurers K. Rochowicz, G. Sostero, E. Guido,
    N. Howes, L. Buzzi, S. Foglia.  2.0-m f/10 Ritchey-Chretien + CCD, 2.0-m
    f/10.0 Ritchey-Chretien + CCD.
H06 RAS Observatory, Mayhill.  Observer H. Sato.  0.51-m f/6.8 astrograph
    + CCD + f/4.5 focal reducer.
I33 SOAR, Cerro Pachon.  Observer H. Hsieh.  Measurer M. Micheli.  4.1-m
    reflector + CCD.

Orbital elements:
    P/2012 G1 (PANSTARRS)
T 2012 June 1.43253 TT                                  MPC
q   2.5841656            (2000.0)            P               Q
n   0.11562497     Peri.  286.11485     -0.85803133     +0.47397143
a   4.1728711      Node   282.54401     -0.35860043     -0.82860500
e   0.3807224      Incl.   11.69249     -0.36767917     -0.29793428
P   8.52
From 16 observations 2012 Apr. 13-16.

Ephemeris:
    P/2012 G1 (PANSTARRS)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2012 03 18    12 21 29.2 -22 19 17   1.6926  2.6314   155.6     9.0  20.3
...
2012 04 02    12 11 26.9 -21 44 39   1.6484  2.6146   161.2     7.1  20.3
...
2012 04 10    12 06 26.1 -21 08 38   1.6478  2.6072   158.8     8.0  20.2
...
2012 04 16    12 03 12.3 -20 36 11   1.6576  2.6022   155.1     9.4  20.3
2012 04 17    12 02 43.5 -20 30 27   1.6601  2.6015   154.3     9.6  20.3
2012 04 18    12 02 15.9 -20 24 39   1.6628  2.6007   153.6     9.9  20.3
...
2012 04 24    11 59 55.4 -19 48 51   1.6838  2.5966   148.7    11.6  20.3
...
2012 05 02    11 58 04.8 -19 00 43   1.7238  2.5920   141.8    13.9  20.3
...
2012 05 17    11 58 55.3 -17 40 17   1.8304  2.5862   128.7    17.8  20.4

Gareth V. Williams           (C) Copyright 2012 MPC           M.P.E.C. 2012-H17

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