• Processing (Info)

    • MPEC 2017-E20 : COMET C/2017 C1 (NEOWISE)

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    M.P.E.C. 2017-E20                                Issued 2017 Mar. 2, 21:27 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 C1 (NEOWISE)

Observations:
    CK17C010 |C2017 02 21.45235 16 04 21.28 +67 04 14.0                vEE020H06
    CK17C010 |C2017 02 21.45485 16 04 20.07 +67 04 16.8                vEE020H06
    CK17C010 |C2017 02 21.45611 16 04 19.42 +67 04 19.0          19.1 TvEE020H06
    CK17C010 KC2017 02 26.86055 15 14 13.36 +68 39 33.7          19.0 TqEE020215
    CK17C010 KC2017 02 26.86568 15 14 10.15 +68 39 39.5          18.6 TqEE020215

Observer details:
215 Buchloe.  Observer W. Hasubick.  0.44-m f/4.6 reflector + CCD.
H06 iTelescope Observatory, Mayhill.  Observer H. Sato.  0.51-m f/6.8
    astrograph + CCD + f/4.5 focal reducer.

Orbital elements:
    C/2017 C1 (NEOWISE)
Epoch 2017 Jan. 7.0 TT = JDT 2457760.5
T 2017 Jan. 18.75494 TT                                 MPCW
q   1.4996775            (2000.0)            P               Q
n   0.01157591     Peri.  110.07080     -0.32602778     -0.94452927
a  19.3537849      Node   357.50744     +0.02794404     +0.03227090
e   0.9225124      Incl.   65.67088     +0.94494710     -0.32683794
P  85.14
From 30 observations 2017 Feb. 6-26, mean residual 0".6.

    C/2017 C1 (NEOWISE)
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5
T 2017 Jan. 18.75653 TT                                 MPCW
q   1.4996792            (2000.0)            P               Q
n   0.01157359     Peri.  110.07189     -0.32604702     -0.94452276
a  19.3563695      Node   357.50763     +0.02794509     +0.03226698
e   0.9225227      Incl.   65.67079     +0.94494043     -0.32685715
P  85.16
From 30 observations 2017 Feb. 6-26, mean residual 0".6.

Ephemeris:
    C/2017 C1 (NEOWISE)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2017 01 31    17 37 10.7 +58 26 43   1.2142  1.5087    86.0    40.6  20.2
...
2017 02 15    16 46 37.0 +64 26 13   1.0887  1.5438    95.9    39.5  20.1
...
2017 02 23    15 51 27.2 +67 36 39   1.0290  1.5726   102.3    37.9  20.0
...
2017 03 01    14 50 40.8 +68 59 10   0.9931  1.5984   107.3    36.3  20.0
2017 03 02    14 39 06.1 +69 03 33   0.9882  1.6030   108.2    36.0  20.0
2017 03 03    14 27 14.2 +69 04 35   0.9835  1.6078   109.0    35.7  20.0
...
2017 03 09    13 14 28.5 +67 51 34   0.9636  1.6380   113.7    33.7  20.1
...
2017 03 17    11 53 23.4 +62 47 32   0.9617  1.6829   118.6    31.3  20.2
...
2017 04 01    10 35 02.1 +47 54 15   1.0472  1.7796   120.8    28.8  20.6

Gareth V. Williams           (C) Copyright 2017 MPC           M.P.E.C. 2017-E20

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