• Processing (Info)

    • MPEC 2012-U05 : COMET C/2012 T4 (MCNAUGHT)

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    M.P.E.C. 2012-U05                                Issued 2012 Oct. 16, 16:56 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 C/2012 T4 (MCNAUGHT)

Observations:
    CK12T040 QC2012 10 13.42762 19 20 33.81 -39 45 32.5          17.8 TrEU005E12
    CK12T040 QC2012 10 13.43820 19 20 35.38 -39 45 33.9          17.5 TrEU005E12
    CK12T040 QC2012 10 13.44883 19 20 36.94 -39 45 33.6          17.9 TrEU005E12
    CK12T040 QC2012 10 13.45944 19 20 38.69 -39 45 35.7          17.5 TrEU005E12
    CK12T040 QC2012 10 13.52658 19 20 48.93 -39 45 40.2          17.5 TrEU005E12
    CK12T040 QC2012 10 13.52970 19 20 49.37 -39 45 40.5          17.3 TrEU005E12
    CK12T040 |C2012 10 15.01238 19 24 39.15 -39 47 32.6          20.2 TuEU005807
    CK12T040 |C2012 10 15.01644 19 24 39.81 -39 47 33.4          19.9 TuEU005807
    CK12T040 |C2012 10 15.02009 19 24 40.41 -39 47 33.6          20.1 TuEU005807
    CK12T040 |C2012 10 15.07467 19 24 49.15 -39 47 40.6                cEU005H06
    CK12T040 |C2012 10 15.07649 19 24 49.22 -39 47 40.4                cEU005H06
    CK12T040 |C2012 10 15.07832 19 24 49.47 -39 47 39.7          18.6 TcEU005H06
    CK12T040 QC2012 10 15.41103 19 25 41.37 -39 47 56.6          17.6 TrEU005E12
    CK12T040 QC2012 10 15.41601 19 25 42.20 -39 47 56.7          17.6 TrEU005E12
    CK12T040 QC2012 10 15.56292 19 26 04.98 -39 48 01.6                rEU005E12
    CK12T040 QC2012 10 16.43033 19 28 21.13 -39 48 42.4          17.5 TrEU005E12

Observer details:
807 Cerro Tololo.  Observers T. Linder, R. Holmes, R. Sampson.  0.41-m f/11
    Ritchey-Chretien + CCD.
E12 Siding Spring Survey.  Observer R. H. McNaught.  Measurers A. Boattini,
    E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
    S. M. Larson, R. H. McNaught, J. D. Ahern, E. C. Beshore.  0.5-m Uppsala
    Schmidt + CCD.
H06 RAS Observatory, Mayhill.  Observer H. Sato.  0.51-m f/6.8 astrograph
    + CCD + f/4.5 focal reducer.

Orbital elements:
    C/2012 T4 (McNaught)
T 2012 Oct. 10.38626 TT                                 MPC
q   1.9604447            (2000.0)            P               Q
                   Peri.  219.63064     +0.69902836     +0.59066641
                   Node    99.30118     -0.50736521     +0.80688585
e   1.0            Incl.   24.10744     -0.50392449     +0.00695892
From 16 observations 2012 Oct. 13-16.

Ephemeris:
    C/2012 T4 (McNaught)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2012 09 16    18 20 00.0 -37 22 17   1.5374  1.9832   100.4    29.9  17.4
...
2012 10 01    18 50 27.0 -39 05 11   1.6543  1.9638    92.0    30.6  17.5
...
2012 10 09    19 09 24.8 -39 36 08   1.7210  1.9605    88.1    30.6  17.6
...
2012 10 15    19 24 37.3 -39 47 31   1.7729  1.9613    85.3    30.4  17.7
2012 10 16    19 27 13.6 -39 48 25   1.7817  1.9617    84.8    30.4  17.7
2012 10 17    19 29 51.0 -39 49 01   1.7905  1.9621    84.4    30.4  17.7
...
2012 10 23    19 45 55.6 -39 46 29   1.8445  1.9665    81.8    30.0  17.8
...
2012 10 31    20 08 02.1 -39 26 49   1.9189  1.9767    78.5    29.5  17.9
...
2012 11 15    20 50 22.5 -38 01 19   2.0667  2.0085    72.7    28.0  18.1

Gareth V. Williams           (C) Copyright 2012 MPC           M.P.E.C. 2012-U05

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