[Iaude] MPEC G56: COMET C/2017 F2 (PANSTARRS)

mpec at si.edu mpec at si.edu
Thu Apr 6 11:45:38 EDT 2017


M.P.E.C. 2017-G56                                Issued 2017 Apr. 6, 15:40 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 at CFA.HARVARD.EDU
            URL http://www.minorplanetcenter.net/    ISSN 1523-6714


                          COMET C/2017 F2 (PANSTARRS)
 
Observations:
    CK17F020  C2017 03 31.40889 12 01 22.222+46 20 42.98         21.2 TLEG056F51
    CK17F020  C2017 03 31.42334 12 01 21.751+46 20 40.95         21.6 TLEG056F51
    CK17F020  C2017 03 31.43782 12 01 21.325+46 20 38.91         21.0 TLEG056F51
    CK17F020 _C2017 04 01.26193712 00 56.054+46 18 44.83         21.1 TUEG056568
    CK17F020 _C2017 04 01.26315812 00 56.016+46 18 44.71         21.2 TUEG056568
    CK17F020 _C2017 04 01.26439512 00 55.982+46 18 44.53         21.1 TUEG056568
    CK17F020  C2017 04 01.31330712 00 54.35 +46 18 37.3          20.9 TUEG056V37
    CK17F020  C2017 04 01.31725712 00 54.24 +46 18 36.9          20.9 TUEG056V37
    CK17F020  C2017 04 01.32120512 00 54.06 +46 18 36.2          21.1 TUEG056V37
    CK17F020  C2017 04 01.32515912 00 53.95 +46 18 35.6          20.8 TUEG056V37
    CK17F020  C2017 04 03.16955 11 59 57.85 +46 14 01.8          20.5 ToEG056926
    CK17F020  C2017 04 03.18851 11 59 57.40 +46 13 58.5          20.3 ToEG056926
    CK17F020  C2017 04 03.20316 11 59 56.94 +46 13 57.3          20.8 ToEG056926
    CK17F020  C2017 04 04.18800 11 59 27.28 +46 11 18.1          19.7 TqEG056I52
    CK17F020  C2017 04 04.20085 11 59 26.89 +46 11 17.2          20.1 TqEG056I52
    CK17F020  C2017 04 04.21262 11 59 26.58 +46 11 15.5          19.8 TqEG056I52
    CK17F020  C2017 04 04.22520 11 59 26.21 +46 11 13.1          20.4 TqEG056I52
    CK17F020  C2017 04 04.40363 11 59 20.921+46 10 44.50         21.0 TLEG056F51
    CK17F020  C2017 04 04.41649 11 59 20.494+46 10 42.04         20.5 TLEG056F51
    CK17F020  C2017 04 04.42936 11 59 20.106+46 10 40.24         20.9 TLEG056F51
    CK17F020  C2017 04 05.16253 11 58 58.46 +46 08 37.0                qEG056I52
    CK17F020  C2017 04 05.17038 11 58 58.25 +46 08 35.6          19.9 TqEG056I52
    CK17F020 KC2017 04 06.44547 11 58 20.63 +46 04 52.0          20.0 ToEG056291
    CK17F020 KC2017 04 06.46209 11 58 20.16 +46 04 48.9          19.9 ToEG056291
 
Observer details:
291 LPL/Spacewatch II.  Observer R. S. McMillan.  1.8-m f/2.7 reflector + CCD.
568 Mauna Kea.  Observers R. J. Wainscoat, D. Woodworth.  Measurers M. Micheli,
    R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.41-m f/3.75 astrograph + CCD, 0.81-m f/7 Ritchey-Chretien
    + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, S. Kahale,
    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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer E. J. Christensen.
    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.
V37 McDonald Observatory-LCOGT ELP.  Observers T. Lister, S. Greenstreet,
    E. Gomez.  Measurer T. Lister.  1.0-m f/8 Ritchey-Chretien + CCD.
 
Orbital elements:
    C/2017 F2 (PANSTARRS)
Epoch 2017 Oct. 14.0 TT = JDT 2458040.5
T 2017 Oct. 6.56817 TT                                  MPCW
q   7.0296491            (2000.0)            P               Q
z  +0.0041515      Peri.  130.95626     -0.85885379     -0.29270555
 +/-0.0033752      Node    38.37005     -0.17700864     -0.60048177
e   0.9708163      Incl.   42.62342     +0.48066424     -0.74414052
>From 24 observations 2017 Mar. 31-Apr. 6, mean residual 0".4.

    C/2017 F2 (PANSTARRS)
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5
T 2017 Oct. 6.01068 TT                                  MPCW
q   7.0300222            (2000.0)            P               Q
z  +0.0041771      Peri.  130.91354     -0.85863865     -0.29332773
 +/-0.0033752      Node    38.37111     -0.17657029     -0.60062303
e   0.9706351      Incl.   42.62292     +0.48120952     -0.74378143
>From 24 observations 2017 Mar. 31-Apr. 6, mean residual 0".4.

Ephemeris:
    C/2017 F2 (PANSTARRS)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2017 03 07    12 14 17.1 +46 38 33   6.4083  7.1603   136.5     5.5  21.1
...
2017 03 22    12 06 20.9 +46 36 16   6.4275  7.1428   132.9     5.9  21.1
...
2017 03 30    12 02 06.0 +46 23 45   6.4576  7.1339   129.4     6.2  21.1
...
2017 04 05    11 59 03.2 +46 09 04   6.4887  7.1275   126.4     6.5  21.1
2017 04 06    11 58 33.8 +46 06 12   6.4946  7.1265   125.8     6.5  21.1
2017 04 07    11 58 04.7 +46 03 12   6.5006  7.1254   125.3     6.6  21.1
...
2017 04 13    11 55 18.3 +45 42 41   6.5406  7.1193   121.7     6.9  21.1
...
2017 04 21    11 52 01.9 +45 08 55   6.6033  7.1114   116.7     7.3  21.1
...
2017 05 06    11 47 31.6 +43 48 03   6.7449  7.0976   106.5     7.8  21.2

Gareth V. Williams           (C) Copyright 2017 MPC           M.P.E.C. 2017-G56




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