[Iaude] MPEC W41: COMET C/2016 U1 (NEOWISE)

mpec at si.edu mpec at si.edu
Mon Nov 21 22:17:47 EST 2016


M.P.E.C. 2016-W41                                Issued 2016 Nov. 22, 03:11 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/2016 U1 (NEOWISE)
 
Observations:
    CK16U010 GC2016 11 11.92017510 28 09.572+50 43 58.66               UEW041O44
    CK16U010 GC2016 11 11.92441010 28 11.355+50 44 00.53               UEW041O44
    CK16U010 GC2016 11 11.92821510 28 13.111+50 44 04.18         21.4 TUEW041O44
    CK16U010  C2016 11 16.89252311 07 22.866+51 21 28.78         20.9 TUEW041O44
    CK16U010  C2016 11 16.89491111 07 24.031+51 21 29.09         21.1 TUEW041O44
    CK16U010  C2016 11 16.89729911 07 25.230+51 21 29.64         21.1 TUEW041O44
    CK16U010  C2016 11 16.89969111 07 26.586+51 21 31.47         20.9 TUEW041O44
    CK16U010  C2016 11 16.90207911 07 27.758+51 21 30.93         20.5 TUEW041O44
    CK16U010  S2016 11 20.61771 11 41 25.81 +51 20 21.3          17   TLEW041C51
    CK16U010  s2016 11 20.61771 1 - 4430.9194 +  324.3803 + 5223.3291   EW041C51
    CK16U010  S2016 11 20.68329 11 42 03.89 +51 20 02.3                LEW041C51
    CK16U010  s2016 11 20.68329 1 - 4470.3255 +  332.8647 + 5189.2145   EW041C51
    CK16U010  S2016 11 20.81420 11 43 20.19 +51 19 20.3                LEW041C51
    CK16U010  s2016 11 20.81420 1 - 4426.9042 +  307.3644 + 5227.7722   EW041C51
    CK16U010  S2016 11 20.94523 11 44 36.64 +51 18 36.2                LEW041C51
    CK16U010  s2016 11 20.94523 1 - 4444.6447 +  303.0261 + 5213.0086   EW041C51
    CK16U010  S2016 11 21.07626 11 45 53.49 +51 17 49.0                LEW041C51
    CK16U010  s2016 11 21.07626 1 - 4462.3730 +  298.6169 + 5198.1540   EW041C51
 
Observer details:
C51 WISE.  Measurers A. K. Mainzer, J. M. Bauer, T. Grav, J. R. Masiero,
    J. W. Dailey, R. M. Cutri, E. L. Wright, C. Nugent, S. Sonnett, E. Kramer.
O44 Lijiang Station, Yunnan Observatories.  Observer X.-L. Zhang.  Measurer
    M. Micheli.  2.4-m reflector + CCD.
 
Orbital elements:
    C/2016 U1 (NEOWISE)
Epoch 2017 Jan. 7.0 TT = JDT 2457760.5
T 2017 Jan. 14.02178 TT                                 MPCW
q   0.3191739            (2000.0)            P               Q
z  -0.0003242      Peri.  162.75793     -0.63628449     +0.43628153
 +/-0.0004160      Node    61.42083     -0.76524232     -0.25248930
e   1.0001035      Incl.   46.42865     -0.09770481     -0.86365941
>From 30 observations 2016 Oct. 21-Nov. 21, mean residual 0".7.

    C/2016 U1 (NEOWISE)
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5
T 2017 Jan. 14.02178 TT                                 MPCW
q   0.3191741            (2000.0)            P               Q
z  -0.0003256      Peri.  162.75805     -0.63628573     +0.43628140
 +/-0.0004160      Node    61.42067     -0.76524115     -0.25248895
e   1.0001039      Incl.   46.42864     -0.09770597     -0.86365958
>From 30 observations 2016 Oct. 21-Nov. 21, mean residual 0".7.

Ephemeris:
    C/2016 U1 (NEOWISE)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2016 10 23    08 45 36.7 +46 05 39   1.5526  1.8283    88.9    33.0  22.6
...
2016 11 07    09 55 50.0 +49 42 50   1.1905  1.5761    92.1    38.9  21.4
...
2016 11 15    10 51 36.2 +51 11 17   1.0208  1.4353    91.1    43.6  20.6
...
2016 11 21    11 45 08.3 +51 18 17   0.9100  1.3263    88.6    48.1  20.0
2016 11 22    11 55 02.3 +51 10 50   0.8933  1.3079    88.0    49.0  19.9
2016 11 23    12 05 11.1 +51 00 14   0.8771  1.2893    87.3    49.9  19.8
...
2016 11 29    13 09 49.3 +48 36 20   0.7930  1.1761    82.0    56.1  19.2
...
2016 12 07    14 35 56.0 +41 05 49   0.7232  1.0197    71.4    66.3  18.4
...
2016 12 22    16 36 04.6 +17 20 54   0.7528  0.7085    45.8    84.6  16.9

Gareth V. Williams           (C) Copyright 2016 MPC           M.P.E.C. 2016-W41




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