[Iaude] MPEC A35: COMET C/2016 U1 (NEOWISE)

mpec at si.edu mpec at si.edu
Fri Jan 6 18:10:09 EST 2017


M.P.E.C. 2017-A35                                Issued 2017 Jan. 6, 23:02 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 KC2016 11 30.24659 13 23 39.53 +47 46 25.0          17.4 NqEA035B00
    CK16U010 KC2016 11 30.25287 13 23 43.89 +47 46 04.5          17.6 NqEA035B00
    CK16U010 |C2016 11 30.51465 13 26 37.87 +47 34 46.2                vEA035H06
    CK16U010 |C2016 11 30.51635 13 26 38.97 +47 34 41.2          13.3 TvEA035H06
    CK16U010 KC2016 12 05.12833 14 16 41.25 +43 18 15.9          18.7 NcEA035B96
    CK16U010 KC2016 12 05.13450 14 16 45.16 +43 17 52.9          17.9 NcEA035B96
    CK16U010  C2016 12 17.85191 16 08 56.97 +24 27 01.6          10.6 TmEA035349
    CK16U010  C2016 12 17.85631 16 08 58.85 +24 26 35.0                mEA035349
    CK16U010  C2016 12 17.86071 16 09 00.68 +24 26 08.4                mEA035349
    CK16U010 |C2016 12 20.52377 16 26 53.74 +19 52 26.7                vEA035H06
    CK16U010 |C2016 12 20.52512 16 26 54.24 +19 52 18.3                vEA035H06
    CK16U010 |C2016 12 20.52644 16 26 54.74 +19 52 10.4                vEA035H06
    CK16U010 |C2016 12 20.52778 16 26 55.23 +19 52 02.0          10.2 TvEA035H06
    CK16U010 KC2016 12 20.82215 16 28 47.77 +19 21 41.7                uEA035D81
    CK16U010 KC2016 12 20.82446 16 28 48.74 +19 21 28.4                uEA035D81
    CK16U010 KC2016 12 20.82601 16 28 49.34 +19 21 19.0                uEA035D81
    CK16U010 KC2016 12 20.83059 16 28 51.04 +19 20 50.4          10.5 TuEA035D81
    CK16U010  C2016 12 20.84234 16 28 55.35 +19 19 37.4                mEA035349
    CK16U010  C2016 12 20.84573 16 28 56.65 +19 19 16.3          10.4 TmEA035349
    CK16U010 KC2016 12 22.22997 16 37 30.09 +16 56 49.1          16.3 NdEA035A77
    CK16U010 KC2016 12 22.23800 16 37 32.91 +16 55 59.0          16.3 NdEA035A77
    CK16U010 KC2016 12 22.24605 16 37 35.82 +16 55 09.8          11.6 TdEA035A77
    CK16U010  C2016 12 23.84712 16 47 00.54 +14 11 17.1           9.6 TmEA035349
    CK16U010  C2016 12 23.85168 16 47 02.08 +14 10 49.7                mEA035349
    CK16U010  C2016 12 23.85619 16 47 03.66 +14 10 22.0                mEA035349
    CK16U010  C2016 12 23.86075 16 47 05.22 +14 09 54.0                mEA035349
    CK16U010  C2016 12 24.21919 16 49 07.63 +13 33 22.6          13.4 NQEA035213
    CK16U010  C2016 12 24.23920 16 49 14.25 +13 31 17.8          14.9 NqEA035K02
    CK16U010  C2016 12 24.23961 16 49 14.61 +13 31 17.9          13.4 NQEA035213
    CK16U010  C2016 12 24.24775 16 49 17.27 +13 30 25.8          15.2 NqEA035K02
    CK16U010  C2016 12 24.25708 16 49 20.48 +13 29 29.5          15.1 NqEA035K02
    CK16U010  C2016 12 24.25847 16 49 20.95 +13 29 22.2          13.4 NQEA035213
    CK16U010  C2016 12 25.84289 16 58 06.68 +10 48 54.5                qEA035D95
    CK16U010  C2016 12 25.84827 16 58 08.43 +10 48 21.9                qEA035D95
    CK16U010  C2016 12 25.84942 16 58 08.77 +10 48 15.0                qEA035D95
    CK16U010  C2016 12 25.85095 16 58 09.26 +10 48 06.2           9.9 TqEA035D95
    CK16U010 KC2016 12 27.23785 17 05 31.01 +08 28 59.1          12.7 NdEA035A77
    CK16U010  C2016 12 27.23917 17 05 31.24 +08 28 51.5          14.2 NqEA035K02
    CK16U010 KC2016 12 27.24164 17 05 32.24 +08 28 36.0          12.8 NdEA035A77
    CK16U010 KC2016 12 27.24543 17 05 33.34 +08 28 12.3           7.0 TdEA035A77
    CK16U010  C2016 12 27.24850 17 05 34.23 +08 27 56.1          14.2 NqEA035K02
    CK16U010  C2016 12 27.25905 17 05 37.53 +08 26 52.6          14.1 NqEA035K02
    CK16U010 KC2016 12 28.24923 17 10 43.93 +06 48 28.4          13.4 NUEA035A77
    CK16U010 KC2016 12 28.25115 17 10 44.50 +06 48 17.0          13.2 NUEA035A77
    CK16U010 KC2016 12 28.25317 17 10 44.99 +06 48 03.6          13.0 NUEA035A77
    CK16U010  C2016 12 28.27909 17 10 53.23 +06 45 28.5          12.0 NwEA035J01
    CK16U010  C2016 12 28.28426 17 10 54.76 +06 44 57.9          12.0 NwEA035J01
    CK16U010  C2016 12 28.28598 17 10 55.21 +06 44 48.9          12.0 NwEA035J01
    CK16U010  C2016 12 28.85944 17 13 49.72 +05 48 07.0                uEA035D81
    CK16U010  C2016 12 28.85986 17 13 49.76 +05 48 04.3                uEA035D81
    CK16U010  C2016 12 28.86028 17 13 49.90 +05 48 01.1                uEA035D81
    CK16U010  C2016 12 28.86074 17 13 49.97 +05 47 58.3           9.1 TuEA035D81
    CK16U010 9C2016 12 29.28215 17 15 57.06 +05 06 29.3          13.3 NqEA035G40
    CK16U010 9C2016 12 29.28300 17 15 57.36 +05 06 24.1          13.4 NqEA035G40
    CK16U010 9C2016 12 29.28384 17 15 57.62 +05 06 19.8          13.3 NqEA035G40
    CK16U010  C2016 12 29.85109 17 18 47.00 +04 10 36.8                mEA035349
    CK16U010  C2016 12 29.85362 17 18 47.76 +04 10 21.8                mEA035349
    CK16U010  C2016 12 29.85613 17 18 48.50 +04 10 07.1                mEA035349
    CK16U010  C2016 12 29.85869 17 18 49.27 +04 09 51.8           9.2 TmEA035349
    CK16U010  C2016 12 29.86111 17 18 50.08 +04 09 38.1          11.0 NmEA035372
    CK16U010  C2016 12 29.86788 17 18 52.06 +04 08 57.8                mEA035372
    CK16U010  C2016 12 30.22268 17 20 37.09 +03 34 13.2          12.4 NqEA035C10
    CK16U010  C2016 12 30.22842 17 20 38.79 +03 33 38.9          12.4 NqEA035C10
    CK16U010  C2016 12 30.23435 17 20 40.58 +03 33 03.8          12.4 NqEA035C10
    CK16U010  C2016 12 30.24028 17 20 42.30 +03 32 30.0          12.4 NqEA035C10
    CK16U010  C2016 12 30.24621 17 20 44.04 +03 31 54.7          12.4 NqEA035C10
    CK16U010  C2016 12 30.25213 17 20 45.82 +03 31 19.7          12.4 NqEA035C10
    CK16U010  C2016 12 30.25806 17 20 47.59 +03 30 45.4          12.4 NqEA035C10
    CK16U010  C2016 12 30.86214 17 23 45.58 +02 31 48.5                uEA035D81
    CK16U010  C2016 12 30.86291 17 23 45.82 +02 31 43.2                uEA035D81
    CK16U010  C2016 12 30.86367 17 23 46.06 +02 31 40.8           8.7 TuEA035D81
    CK16U010  C2016 12 31.21403 17 25 28.61 +01 57 32.8          13.6 NqEA035B69
    CK16U010  C2016 12 31.23624 17 25 35.11 +01 55 22.9          13.6 NqEA035B69
    CK16U010  C2016 12 31.27912 17 25 47.66 +01 51 14.4          11.3 NwEA035J01
    CK16U010  C2016 12 31.28091 17 25 48.16 +01 51 03.4          11.3 NwEA035J01
    CK16U010  C2016 12 31.28270 17 25 48.73 +01 50 52.9          11.3 NwEA035J01
    CK16U010  C2016 12 31.85290 17 28 34.95 +00 55 35.4                qEA035D95
    CK16U010  C2016 12 31.85329 17 28 35.07 +00 55 33.0                qEA035D95
    CK16U010  C2016 12 31.85753 17 28 36.29 +00 55 07.7                qEA035D95
    CK16U010  C2016 12 31.85907 17 28 36.74 +00 54 59.4           9.5 TqEA035D95
    CK16U010  C2017 01 01.23608 17 30 26.19 +00 18 28.1          13.2 NqEA035215
    CK16U010  C2017 01 01.23711 17 30 26.52 +00 18 21.9          13.3 NqEA035215
    CK16U010  C2017 01 01.23838 17 30 26.91 +00 18 15.1          13.3 NqEA035215
    CK16U010  C2017 01 01.23966 17 30 27.22 +00 18 07.2          13.3 NqEA035215
    CK16U010  C2017 01 01.24095 17 30 27.63 +00 18 00.4          13.3 NqEA035215
    CK16U010  C2017 01 02.85639 17 38 15.92 -02 17 38.4           9.0 TmEA035349
    CK16U010  C2017 01 02.85894 17 38 16.68 -02 17 53.5                mEA035349
    CK16U010  C2017 01 02.86152 17 38 17.45 -02 18 08.5                mEA035349
 
Observer details:
213 Observatorio Montcabre.  Observer R. Naves.  Measurer M. Campas.  0.30-m
    f/10 Schmidt-Cassegrain.
215 Buchloe.  Observer W. Hasubick.  0.44-m f/4.6 reflector + CCD.
349 Ageo.  Observer K. Kadota.  0.25-m f/5.0 reflector + CCD.
372 Geisei.  Observer T. Seki.  0.70-m f/10 reflector + f/5 focal reducer.
A77 Observatoire Chante-Perdrix, Dauban.  Observers C. Rinner, F. Kugel,
    J. Nicolas.  Measurers F. Kugel, J. Nicolas.  0.4-m f/3 reflector + CCD,
    0.41-m f/3.3 reflector + CCD.
B00 Savigny-le-Temple.  Observers J.-B. de Vanssay, P. Sogorb, M. Serrau,
    J.-P. Godard.  Measurer J.-B. de Vanssay.  0.16-m f/3.3 reflector + CCD.
B69 Owls and Ravens Observatory, Holzgerlingen.  Observer S. Beck.  0.20-m
    f/2.8 Newtonian reflector + CCD.
B96 Brixiis Observatory, Kruibeke.  Observer E. Bryssinck.  0.4-m f/3.8
    astrograph + CCD.
C10 Maisoncelles.  Observer J.-F. Soulier.  0.30-m f/3.8 Newtonian reflector
    + CCD.
D81 Nagano.  Observer Y. Ohshima.  0.30-m f/4.6 reflector + CCD.
D95 Kurihara.  Observer T. Takahashi.  0.25-m f/4.2 reflector + CCD.
G40 Slooh.com Canary Islands Observatory.  Observer B. Lutkenhoner.  0.43-m
    f/6.8 Corrected Dall-Kirkham + CCD.
H06 iTelescope Observatory, Mayhill.  Observer H. Sato.  0.43-m f/6.8
    astrograph + CCD + f/4.5 focal reducer, 0.51-m f/6.8 astrograph + CCD
    + f/4.5 focal reducer.
J01 Observatorio Cielo Profundo, Leon.  Observer J. Gonzalez.  0.15-m f/6.3
    Ritchey-Chretien + CCD.
K02 Eastwood Observatory, Leigh on Sea.  Observer P. Carson.  0.32-m reflector
    + CCD + f/5.4 focal reducer.
 
Orbital elements:
    C/2016 U1 (NEOWISE)
Epoch 2017 Jan. 7.0 TT = JDT 2457760.5
T 2017 Jan. 14.01695 TT                                 MPCW
q   0.3191536            (2000.0)            P               Q
z  -0.0007156      Peri.  162.75152     -0.63623366     +0.43621793
 +/-0.0000334      Node    61.42719     -0.76529507     -0.25247828
e   1.0002284      Incl.   46.43395     -0.09762262     -0.86369476
>From 225 observations 2016 Oct. 27-2017 Jan. 2, mean residual 0".6.

    C/2016 U1 (NEOWISE)
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5
T 2017 Jan. 14.01695 TT                                 MPCW
q   0.3191539            (2000.0)            P               Q
z  -0.0007170      Peri.  162.75164     -0.63623490     +0.43621780
 +/-0.0000334      Node    61.42703     -0.76529390     -0.25247793
e   1.0002288      Incl.   46.43393     -0.09762379     -0.86369492
>From 225 observations 2016 Oct. 27-2017 Jan. 2, mean residual 0".6.

Ephemeris:
    C/2016 U1 (NEOWISE)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2016 12 07    14 35 56.7 +41 05 45   0.7232  1.0197    71.4    66.3  16.4
...
2016 12 22    16 36 05.5 +17 20 39   0.7528  0.7084    45.8    84.6  14.9
...
2016 12 30    17 19 30.5 +03 56 12   0.8522  0.5368    33.0    87.0  14.0
...
2017 01 05    17 48 42.6 -05 42 46   0.9596  0.4166    24.7    80.8  13.1
2017 01 06    17 53 42.1 -07 18 11   0.9799  0.3988    23.4    78.8  13.0
2017 01 07    17 58 48.8 -08 53 25   1.0008  0.3822    22.2    76.3  12.8
...
2017 01 13    18 34 00.7 -18 11 59   1.1326  0.3207    15.5    54.8  12.3
...
2017 01 21    19 36 08.5 -27 54 20   1.2917  0.3815    11.5    30.9  13.4
...
2017 02 05    21 34 52.0 -33 38 18   1.5491  0.6859    18.2    26.7  16.3

Gareth V. Williams           (C) Copyright 2017 MPC           M.P.E.C. 2017-A35




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