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    • MPEC 2012-U40 : COMET P/2012 T7 (VOROBJOV)

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    M.P.E.C. 2012-U40                                Issued 2012 Oct. 18, 19:11 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

                          COMET P/2012 T7 (VOROBJOV)

Observations:
    PK12T070  C2012 10 15.36615 03 31 20.58 +14 55 51.9          20.1 TtEU040G84
    PK12T070  C2012 10 15.38666 03 31 20.14 +14 55 46.2          20.4 TtEU040G84
    PK12T070  C2012 10 15.40791 03 31 19.67 +14 55 40.4          20.1 TtEU040G84
    PK12T070 KC2012 10 16.36828503 30 59.19 +14 51 12.1          19.3 TrEU040H21
    PK12T070 KC2012 10 16.37539403 30 59.10 +14 51 11.3          19.2 TrEU040H21
    PK12T070 KC2012 10 16.38159103 30 58.98 +14 51 08.6          19.3 TrEU040H21
    PK12T070 4C2012 10 16.59215 03 30 54.45 +14 50 12.7                tEU040E10
    PK12T070 4C2012 10 16.59497 03 30 54.39 +14 50 11.8                tEU040E10
    PK12T070 4C2012 10 16.59765 03 30 54.33 +14 50 11.0          19.9 TtEU040E10
    PK12T070 4C2012 10 16.60036 03 30 54.28 +14 50 10.4                tEU040E10
    PK12T070  C2012 10 16.81693 03 30 49.53 +14 49 05.9          20.0 TuEU040D00
    PK12T070  C2012 10 16.84342 03 30 48.95 +14 48 57.5          20.2 TuEU040D00
    PK12T070  C2012 10 16.85244 03 30 48.76 +14 48 55.7          20.2 TuEU040D00
    PK12T070  C2012 10 17.01200 03 30 45.05 +14 48 11.5          19.4 TvEU040C32
    PK12T070  C2012 10 17.01582 03 30 44.95 +14 48 10.1          19.6 TvEU040C32
    PK12T070 KC2012 10 17.01947 03 30 44.99 +14 48 09.1                tEU040204
    PK12T070 KC2012 10 17.02737 03 30 44.77 +14 48 06.2          19.8 TtEU040204
    PK12T070 KC2012 10 17.39234 03 30 36.64 +14 46 23.8          20.3 TtEU040G68
    PK12T070 KC2012 10 17.40683 03 30 36.28 +14 46 19.5          20.3 TtEU040G68
    PK12T070 KC2012 10 17.41956 03 30 35.95 +14 46 15.8          20.4 TtEU040G68
    PK12T070  C2012 10 17.42641 03 30 35.78 +14 46 14.3          19.5 TrEU040G96
    PK12T070 KC2012 10 17.43230 03 30 35.68 +14 46 12.6          19.4 TtEU040G68
    PK12T070  C2012 10 17.43287 03 30 35.60 +14 46 12.5          19.5 TrEU040G96
    PK12T070  C2012 10 17.43935 03 30 35.46 +14 46 10.9          19.1 TrEU040G96
    PK12T070  C2012 10 17.44579 03 30 35.28 +14 46 08.8          19.5 TrEU040G96
    PK12T070 |C2012 10 17.44786 03 30 35.31 +14 46 08.4                cEU040H06
    PK12T070 |C2012 10 17.45113 03 30 35.26 +14 46 07.1          20.0 TcEU040H06
    PK12T070  C2012 10 17.80769 03 30 27.29 +14 44 25.7          19.6 TvEU040C32
    PK12T070  C2012 10 17.81164 03 30 27.22 +14 44 24.5          19.6 TvEU040C32
    PK12T070  C2012 10 17.81561 03 30 27.13 +14 44 23.6          19.8 TvEU040C32
    PK12T070  C2012 10 17.81947 03 30 27.03 +14 44 22.2          19.8 TvEU040C32
    PK12T070 KC2012 10 17.92354 03 30 24.65 +14 43 53.0          19.5 TqEU040470
    PK12T070 KC2012 10 17.92832 03 30 24.53 +14 43 51.8          19.1 TqEU040470
    PK12T070 KC2012 10 17.93190 03 30 24.45 +14 43 50.5          19.2 TqEU040470
    PK12T070 KC2012 10 17.93548 03 30 24.30 +14 43 48.2          19.2 TqEU040470
    PK12T070 KC2012 10 17.99543 03 30 22.92 +14 43 32.0          19.4 TuEU040113
    PK12T070 KC2012 10 18.00443 03 30 22.73 +14 43 29.6          19.5 TuEU040113
    PK12T070 KC2012 10 18.01342 03 30 22.48 +14 43 27.2          19.3 TuEU040113
    PK12T070 `C2012 10 18.26101 03 30 16.94 +14 42 17.2          19.5 TtEU040H06
    PK12T070 `C2012 10 18.26448 03 30 16.88 +14 42 15.6          19.5 TtEU040H06
    PK12T070 `C2012 10 18.27024 03 30 16.77 +14 42 14.3          19.5 TtEU040H06
    PK12T070  C2012 10 18.38701 03 30 13.93 +14 41 41.2          19.6 TtEU040G68
    PK12T070  C2012 10 18.39943 03 30 13.59 +14 41 37.1          19.8 TtEU040G68
    PK12T070  C2012 10 18.40961 03 30 13.39 +14 41 34.3          19.9 TtEU040G68
    PK12T070 $C2012 10 18.43413 03 30 12.89 +14 41 28.5          19.7 ToEU040F65
    PK12T070 $C2012 10 18.43814 03 30 12.80 +14 41 27.0          19.8 ToEU040F65

Observer details:
113 Volkssternwarte Drebach, Schoenbrunn.  Observer A. Knoefel.  0.5-m f/4.6
    reflector + CCD.
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector
    + CCD.
470 Ceccano.  Observers G. Masi, F. Nocentini.  Measurers G. Masi, U. Masi.
    0.36-m f/8.7 reflector + CCD.
C32 Ka-Dar Observatory, TAU Station, Nizhny Arkhyz.  Observer V. Gerke.
    Measurer A. Novichonok.  0.40-m f/8 Ritchey-Chretien + CCD.
D00 ISON-Kislovodsk Observatory.  Observers V. Nevski, O. Zeloyniy.  Measurers
    V. Nevski, V.  Savanevych.  0.4-m f/3 reflector + CCD.
E10 Siding Spring-Faulkes Telescope South.  Observers P. Miller, P. Roche,
    A. Tripp, R. Miles, R. Holmes, S. Foglia, L. Buz.  Measurers L. Buzzi,
    S. Foglia, T. Vorobjov.  2.0-m f/10 Ritchey-Chretien + CCD.
F65 Haleakala-Faulkes Telescope North.  Observers E. Guido, N. Howes,
    G. Sostero.  2.0-m f/10.0 Ritchey-Chretien + CCD.
G68 Sierra Stars Observatory, Markleeville.  Observer R. Williams.  Measurers
    R. Williams, T. Vorobjov.  0.61-m f/10 Cassegrain + CCD.
G84 Mount Lemmon SkyCenter.  Observers T. Vorobjov, A. Kostin.  Measurer
    T. Vorobjov.  0.81-m f/7 Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observer A. Boattini.  Measurers A. Boattini,
    E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
    S. M. Larson, R. H. McNaught.  1.5-m reflector + CCD.
H06 RAS Observatory, Mayhill.  Observers H. Sato, E. Bryssinck.  0.43-m f/6.8
    astrograph + CCD + f/4.5 focal reducer, 0.51-m f/6.8 astrograph + CCD
    + f/4.5 focal reducer.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers L. Buzzi, H. Devore, S. Foglia, T. Vorobjov.  0.61-m f/4.0
    astrograph + CCD.

Orbital elements:
    P/2012 T7 (Vorobjov)
T 2012 June 16.58408 TT                                 MPC
q   3.7859963            (2000.0)            P               Q
n   0.07238300     Peri.  174.76846     +0.88063332     -0.45594956
a   5.7022333      Node   213.34342     +0.42575877     +0.88082526
e   0.3360503      Incl.   13.55433     +0.20788081     +0.12750238
P  13.6
From 46 observations 2012 Oct. 15-18.

Ephemeris:
    P/2012 T7 (Vorobjov)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2012 09 18    03 34 55.2 +16 39 44   3.2152  3.8160   119.8    13.2  19.9
...
2012 10 03    03 34 29.7 +15 48 57   3.0551  3.8263   134.8    10.7  19.8
...
2012 10 11    03 32 43.5 +15 15 37   2.9866  3.8324   143.1     9.0  19.7
...
2012 10 17    03 30 45.4 +14 48 16   2.9446  3.8373   149.6     7.6  19.7
2012 10 18    03 30 22.8 +14 43 33   2.9384  3.8381   150.7     7.3  19.7
2012 10 19    03 29 59.5 +14 38 47   2.9325  3.8389   151.7     7.1  19.7
...
2012 10 25    03 27 24.8 +14 09 29   2.9027  3.8441   158.3     5.5  19.7
...
2012 11 02    03 23 27.0 +13 29 12   2.8784  3.8513   166.9     3.4  19.7
...
2012 11 17    03 15 14.9 +12 14 48   2.8837  3.8659   172.4     1.9  19.7

Gareth V. Williams           (C) Copyright 2012 MPC           M.P.E.C. 2012-U40

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