• MPC Preparation (Info)

  • MPEC 2017-S97 : COMET P/2017 R1 (PANSTARRS)

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.


    Read MPEC 2017-S96 Read MPEC 2017-S98


    M.P.E.C. 2017-S97                                Issued 2017 Sept. 22, 13:41 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 P/2017 R1 (PANSTARRS)
    
    Observations:
        PK17R010  C2017 07 30.49462 23 42 52.697-02 59 55.99         21.5 TLES097F51
        PK17R010  C2017 07 30.50666 23 42 52.602-02 59 57.15         21.2 TLES097F51
        PK17R010  C2017 07 30.51860 23 42 52.492-02 59 58.36         21.4 TLES097F51
        PK17R010  C2017 07 30.53051 23 42 52.407-02 59 59.52         21.9 TLES097F51
        PK17R010  C2017 08 01.53132 23 42 36.246-03 03 32.07         22.3 TLES097F51
        PK17R010  C2017 08 01.54321 23 42 36.118-03 03 33.09         22.5 TLES097F51
        PK17R010  C2017 08 01.55510 23 42 35.974-03 03 34.51         22.0 TLES097F51
        PK17R010  C2017 08 01.56701 23 42 35.869-03 03 35.97         22.3 TLES097F51
        PK17R010  C2017 08 03.52513 23 42 15.909-03 07 30.71         21.2 TLES097F51
        PK17R010  C2017 08 03.53589 23 42 15.769-03 07 32.21         21.4 TLES097F51
        PK17R010  C2017 08 03.54668 23 42 15.644-03 07 33.45         21.1 TLES097F51
        PK17R010  C2017 08 03.55743 23 42 15.501-03 07 34.61         21.3 TLES097F51
        PK17R010  C2017 08 17.47615 23 38 03.574-03 47 07.78         21.6 TLES097F51
        PK17R010  C2017 08 17.48721 23 38 03.279-03 47 09.89         21.9 TLES097F51
        PK17R010  C2017 08 17.49826 23 38 02.992-03 47 12.45         21.7 TLES097F51
        PK17R010  C2017 08 17.50933 23 38 02.703-03 47 14.79         21.7 TLES097F51
        PK17R010  C2017 09 02.40902 23 30 03.20 -04 51 38.7          20.9 TqES097G96
        PK17R010  C2017 09 02.41466 23 30 02.98 -04 51 40.5          20.5 TqES097G96
        PK17R010  C2017 09 02.41966 23 30 02.80 -04 51 42.3          20.0 TqES097G96
        PK17R010  C2017 09 02.42386 23 30 02.64 -04 51 43.0          20.8 TqES097G96
        PK17R010  C2017 09 14.40860 23 22 54.116-05 45 26.07         21.2 TLES097F51
        PK17R010  C2017 09 14.42057 23 22 53.652-05 45 29.39         21.4 TLES097F51
        PK17R010  C2017 09 14.43251 23 22 53.220-05 45 32.63         21.1 TLES097F51
        PK17R010  C2017 09 14.44444 23 22 52.773-05 45 35.82         21.3 TLES097F51
        PK17R010  C2017 09 15.27618 23 22 22.69 -05 49 16.4          19.9 TqES097I52
        PK17R010  C2017 09 15.28137 23 22 22.54 -05 49 18.0          20.1 TqES097I52
        PK17R010  C2017 09 15.28767 23 22 22.24 -05 49 20.4          21.8 TqES097I52
        PK17R010  C2017 09 15.29716923 22 21.80 -05 49 19.3          20.6 TUES097W85
        PK17R010  C2017 09 15.30113723 22 21.65 -05 49 20.5          20.7 TUES097W85
        PK17R010  C2017 09 15.30510723 22 21.51 -05 49 21.5          20.8 TUES097W85
        PK17R010  C2017 09 15.30907623 22 21.35 -05 49 22.5          20.8 TUES097W85
        PK17R010  C2017 09 15.31308723 22 21.23 -05 49 23.5          20.7 TUES097W85
        PK17R010 _C2017 09 15.37821123 22 19.077-05 49 43.68         21.3 TUES097568
        PK17R010 _C2017 09 15.37938623 22 19.033-05 49 43.92         21.0 TUES097568
        PK17R010 _C2017 09 15.38056123 22 18.988-05 49 44.24         21.1 TUES097568
        PK17R010 1C2017 09 15.54737 23 22 12.88 -05 50 25.2                vES097Q62
        PK17R010 1C2017 09 15.55129 23 22 12.75 -05 50 26.1                vES097Q62
        PK17R010 1C2017 09 15.55521 23 22 12.62 -05 50 27.0          19.9 TvES097Q62
        PK17R010  C2017 09 17.37894 23 21 07.014-05 58 29.48         21.0 TLES097F51
        PK17R010  C2017 09 17.39065 23 21 06.589-05 58 32.57         21.3 TLES097F51
        PK17R010  C2017 09 17.40238 23 21 06.142-05 58 35.79         20.9 TLES097F51
        PK17R010  C2017 09 17.41408 23 21 05.702-05 58 38.80         21.2 TLES097F51
        PK17R010 HC2017 09 18.32717 23 20 32.95 -06 02 36.6          20.2 ToES097691
        PK17R010 HC2017 09 18.33447 23 20 32.67 -06 02 38.1          20.3 ToES097691
        PK17R010 HC2017 09 18.34177 23 20 32.40 -06 02 39.7          20.3 ToES097691
        PK17R010  C2017 09 18.35560 23 20 31.98 -06 02 43.3          21.0 TqES097I52
        PK17R010  C2017 09 18.36243 23 20 31.68 -06 02 45.0                qES097I52
        PK17R010  C2017 09 18.36927 23 20 31.43 -06 02 47.5                qES097I52
        PK17R010  C2017 09 18.37625 23 20 31.13 -06 02 48.4                qES097I52
        PK17R010 HC2017 09 19.17340 23 20 03.02 -06 06 14.3          20.3 ToES097691
        PK17R010 HC2017 09 19.18457 23 20 02.72 -06 06 16.4          20.5 ToES097691
        PK17R010 HC2017 09 19.19575 23 20 02.30 -06 06 20.0          20.7 ToES097691
        PK17R010  C2017 09 19.23115 23 20 01.03 -06 06 29.1          21.3 TqES097I52
        PK17R010  C2017 09 19.23617 23 20 00.84 -06 06 30.1          21.2 TqES097I52
        PK17R010  C2017 09 19.24123 23 20 00.63 -06 06 31.7                qES097I52
        PK17R010  C2017 09 19.24896 23 20 00.34 -06 06 33.6                qES097I52
    
    Observer details:
    568 Mauna Kea.  Observers R. J. Wainscoat, C. Crowder.  Measurers M. Micheli,
        R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
    691 Steward Observatory, Kitt Peak.  Observer T. H. Bressi.  0.9-m f/3
        reflector + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
        M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
        M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk.  1.8-m
        Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer J. A. Johnson.  Measurers E. J. Christensen,
        D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
        S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly.
        1.5-m reflector + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers R. G. Matheny,
        J. A. Johnson.  Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs,
        A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard,
        R. G. Matheny, R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
    Q62 iTelescope Observatory, Siding Spring.  Observer H. Sato.  0.51-m f/6.8
        astrograph + CCD + f/4.5 focal reducer.
    W85 Cerro Tololo-LCO A.  Observers T. Lister, S. Greenstreet, E. Gomez.
        Measurer T. Lister.  1.0-m f/8 Ritchey-Chretien + CCD.
    
    Orbital elements:
        P/2017 R1 (PANSTARRS)
    Epoch 2017 Apr. 3.0 TT = JDT 2457846.5
    T 2017 Apr. 8.83434 TT                                  MPCW
    q   3.3280894            (2000.0)            P               Q
    n   0.11741795     Peri.  178.49646     +0.78965608     +0.61297235
    a   4.1302823      Node   143.65546     -0.56338850     +0.74159114
    e   0.1942223      Incl.    2.57364     -0.24297463     +0.27259399
    P   8.39
    From 56 observations 2017 July 30-Sept. 19, mean residual 0".4.
    
        P/2017 R1 (PANSTARRS)
    Epoch 2025 Sept. 8.0 TT = JDT 2460926.5
    T 2025 Sept.  9.12690 TT                                MPCW
    q   3.3285839            (2000.0)            P               Q
    n   0.11739230     Peri.  178.98188     +0.79416483     +0.60711709
    a   4.1308838      Node   143.59356     -0.55787314     +0.74574555
    e   0.1942199      Incl.    2.57510     -0.24099748     +0.27435818
    P   8.40
    From 56 observations 2017 July 30-Sept. 19, mean residual 0".4.
    
        P/2017 R1 (PANSTARRS)
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5
    T 2017 Apr. 8.86360 TT                                  MPCW
    q   3.3280933            (2000.0)            P               Q
    n   0.11737423     Peri.  178.50130     +0.78970184     +0.61291344
    a   4.1313078      Node   143.65489     -0.56333293     +0.74163235
    e   0.1944214      Incl.    2.57350     -0.24295475     +0.27261435
    P   8.40
    From 56 observations 2017 July 30-Sept. 19, mean residual 0".4.
    
    Ephemeris:
        P/2017 R1 (PANSTARRS)
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
    2017 08 23    23 35 35.7 -04 07 43   2.4211  3.3753   157.0     6.7  20.7
    ...
    2017 09 07    23 27 22.0 -05 12 08   2.3826  3.3860   173.7     1.9  20.7
    ...
    2017 09 15    23 22 32.7 -05 48 02   2.3877  3.3921   176.6     1.0  20.7
    ...
    2017 09 21    23 18 58.8 -06 13 55   2.4036  3.3969   170.0     2.9  20.7
    2017 09 22    23 18 24.0 -06 18 04   2.4072  3.3977   168.9     3.3  20.7
    2017 09 23    23 17 49.7 -06 22 10   2.4111  3.3986   167.8     3.6  20.7
    ...
    2017 09 29    23 14 33.5 -06 45 20   2.4405  3.4035   161.0     5.5  20.8
    ...
    2017 10 07    23 10 47.1 -07 11 36   2.4946  3.4104   152.2     7.9  20.8
    ...
    2017 10 22    23 06 10.9 -07 42 49   2.6371  3.4241   136.1    11.6  21.0
    
    Gareth V. Williams           (C) Copyright 2017 MPC           M.P.E.C. 2017-S97
    

    Read MPEC 2017-S96 Read MPEC 2017-S98


    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)