• MPC Preparation (Info)

  • MPEC 2018-P85 : COMET C/2017 T3 (ATLAS)

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    M.P.E.C. 2018-P85                                Issued 2018 Aug. 13, 18:35 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/2017 T3 (ATLAS)
    
    Observations:
        CK17T030  C2018 07 09.83749 05 55 27.19 -01 14 47.6          11.6 GVEP085Q38
        CK17T030  C2018 07 09.84110 05 55 28.15 -01 14 55.8          11.5 GVEP085Q38
        CK17T030  C2018 07 09.84632 05 55 29.86 -01 15 11.6          11.8 GVEP085Q38
        CK17T030 3C2018 07 12.43443 06 07 38.05 -03 23 24.7          13.2 NUEP085W88
        CK17T030 3C2018 07 12.43755 06 07 38.96 -03 23 34.3          13.3 NUEP085W88
        CK17T030 3C2018 07 12.44103 06 07 40.00 -03 23 45.0          13.5 NUEP085W88
        CK17T030 3C2018 07 12.44451 06 07 40.99 -03 23 55.0          13.5 NUEP085W88
        CK17T030 3C2018 07 23.42501 07 07 38.99 -12 59 56.8          12.8 NUEP085W88
        CK17T030 3C2018 07 23.42978 07 07 40.75 -13 00 11.9          12.9 NUEP085W88
        CK17T030 3C2018 07 23.43064 07 07 41.04 -13 00 14.8          12.9 NUEP085W88
        CK17T030 3C2018 07 23.43413 07 07 42.34 -13 00 25.9          12.8 NUEP085W88
        CK17T030 3C2018 07 23.44468 07 07 46.21 -13 00 59.2          12.9 NUEP085W88
        CK17T030 3C2018 08 02.42418 08 14 12.54 -21 14 04.8          13.5 NUEP085W88
        CK17T030 3C2018 08 02.43730 08 14 18.19 -21 14 39.3          13.2 NUEP085W88
        CK17T030 3C2018 08 02.43817 08 14 18.51 -21 14 42.3          13.3 NUEP085W88
        CK17T030 3C2018 08 08.42692 08 57 43.97 -25 09 24.2          10.9 TUEP085W88
        CK17T030 3C2018 08 08.43498 08 57 47.50 -25 09 40.4          11.0 TUEP085W88
    
    Observer details:
    Q38 Swan Hill.  Observer M. Mattiazzo.
    W88 Slooh.com Chile Observatory, La Dehesa.  Observer B. Lutkenhoner.  0.35-m
        f/11 Schmidt-Cassegrain + CCD.
    
    Orbital elements:
        C/2017 T3 (ATLAS)
    Epoch 2018 July 21.0 TT = JDT 2458320.5
    T 2018 July 19.15275 TT                                 MPCW
    q   0.8254220            (2000.0)            P               Q
    z  +0.0007156      Peri.  246.88281     +0.22863931     -0.60006765
     +/-0.0000015      Node   230.08494     +0.65979124     -0.48348495
    e   0.9994093      Incl.   88.10867     -0.71582091     -0.63730771
    From 523 observations 2017 Sept. 11-2018 Aug. 2, mean residual 0".6.
    
        C/2017 T3 (ATLAS)
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5
    T 2018 July 19.15241 TT                                 MPCW
    q   0.8253988            (2000.0)            P               Q
    z  +0.0006847      Peri.  246.88421     +0.22861993     -0.60007314
     +/-0.0000015      Node   230.08509     +0.65978293     -0.48350118
    e   0.9994348      Incl.   88.10835     -0.71583477     -0.63729023
    From 523 observations 2017 Sept. 11-2018 Aug. 2, mean residual 0".6.
    
    Ephemeris:
        C/2017 T3 (ATLAS)
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
    2018 07 14    06 15 18.7 -04 43 02   1.4849  0.8312    32.5    41.0  10.1
    ...
    2018 07 29    07 43 31.2 -17 46 42   1.3565  0.8461    38.5    48.4   9.9
    ...
    2018 08 06    08 39 58.4 -23 41 35   1.3602  0.8910    40.9    48.2  10.2
    ...
    2018 08 12    09 23 52.6 -26 58 57   1.3988  0.9382    42.1    46.4  10.5
    2018 08 13    09 31 08.5 -27 25 21   1.4080  0.9471    42.2    46.0  10.5
    2018 08 14    09 38 21.8 -27 49 54   1.4179  0.9562    42.4    45.6  10.6
    ...
    2018 08 20    10 20 17.1 -29 40 10   1.4918  1.0152    42.7    42.5  10.9
    ...
    2018 08 28    11 10 38.9 -30 44 44   1.6214  1.1038    42.1    37.8  11.5
    ...
    2018 09 12    12 25 12.2 -30 21 10   1.9205  1.2886    38.1    28.8  12.5
    
    Gareth V. Williams           (C) Copyright 2018 MPC           M.P.E.C. 2018-P85
    

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