• Processing (Info)

    • MPEC 2016-A90 : COMET C/2015 X7 (ATLAS)

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    M.P.E.C. 2016-A90                                Issued 2016 Jan. 10, 04:36 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
    on behalf of Division F 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/2015 X7 (ATLAS)

Observations:
    CK15X070  C2015 12 29.65298 07 00 17.74 -28 38 16.1          17.1 TmEA090349
    CK15X070  C2015 12 29.65744 07 00 17.54 -28 38 14.8                mEA090349
    CK15X070  C2016 01 02.63711 06 57 45.41 -28 13 11.3          17.0 TmEA090349
    CK15X070  C2016 01 02.64226 06 57 45.19 -28 13 09.0                mEA090349
    CK15X070  C2016 01 04.38677 06 56 37.93 -28 00 47.3          17.4 TLEA090T05
    CK15X070  C2016 01 04.40389 06 56 37.15 -28 00 39.7          17.0 TLEA090T05
    CK15X070  C2016 01 04.42138 06 56 36.43 -28 00 32.3          17.1 TLEA090T05
    CK15X070  C2016 01 04.43906 06 56 35.80 -28 00 24.7          17.2 TLEA090T05
    CK15X070  C2016 01 04.52963 06 56 32.32 -27 59 41.9          17.6 NtEA090474
    CK15X070  C2016 01 04.53034 06 56 32.30 -27 59 41.6          17.5 NtEA090474
    CK15X070  C2016 01 04.53287 06 56 32.20 -27 59 40.5          17.6 NtEA090474
    CK15X070  C2016 01 04.53487 06 56 32.10 -27 59 39.5          18.2 NtEA090474
    CK15X070  C2016 01 04.53687 06 56 32.04 -27 59 38.7          17.4 NtEA090474

Observer details:
349 Ageo.  Observer K. Kadota.  0.25-m f/5.0 reflector + CCD.
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.
T05 ATLAS-HKO, Haleakala.  Observers L. Denneau, A. Heinze, H. Weiland,
    B. Stalder, J. Tonry, A. Sherstyuk.  Measurers L. Denneau, A. Heinze,
    J. Tonry.  0.5-m f/2.0 Schmidt + CCD.

Orbital elements:
    C/2015 X7 (ATLAS)
T 2016 July 29.54437 TT                                 MPCW
q   3.6792580            (2000.0)            P               Q
                   Peri.  348.40981     -0.68049815     -0.49234395
                   Node   139.95501     +0.72146817     -0.57965890
e   1.0            Incl.   57.51127     +0.12808571     +0.64930193
From 53 observations 2015 Dec. 12-2016 Jan. 4.

Ephemeris:
    C/2015 X7 (ATLAS)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2015 12 11    07 10 46.2 -29 40 46   3.6348  4.2126   119.9    11.7  18.0
...
2015 12 26    07 02 33.9 -28 57 31   3.4902  4.1507   126.5    11.0  17.9
...
2016 01 03    06 57 31.5 -28 10 39   3.4299  4.1190   128.9    10.7  17.8
...
2016 01 09    06 53 39.2 -27 24 02   3.3935  4.0957   130.0    10.6  17.8
2016 01 10    06 53 00.7 -27 15 19   3.3882  4.0919   130.1    10.6  17.8
2016 01 11    06 52 22.3 -27 06 19   3.3831  4.0881   130.3    10.6  17.8
...
2016 01 17    06 48 37.0 -26 06 47   3.3574  4.0655   130.5    10.6  17.7
...
2016 01 25    06 43 59.6 -24 33 23   3.3361  4.0362   129.7    10.8  17.7
...
2016 02 09    06 37 17.0 -21 02 07   3.3370  3.9839   124.9    11.7  17.6

Gareth V. Williams           (C) Copyright 2016 MPC           M.P.E.C. 2016-A90

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