[Iaude] MPEC A13: COMET 71P/CLARK

mpec at si.edu mpec at si.edu
Wed Jan 4 17:32:09 EST 2017


M.P.E.C. 2017-A13                                Issued 2017 Jan. 4, 22:24 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 71P/CLARK
 
Observations:
0071P         C2016 12 17.82103 13 35 53.84 -02 12 14.5          17.7 TmEA013349
0071P         C2016 12 17.83017 13 35 54.75 -02 12 19.9                mEA013349
0071P        KC2017 01 03.34944 14 03 48.51 -04 43 41.8          18.1 NqEA013W96
0071P        KC2017 01 03.36020 14 03 49.63 -04 43 47.5          18.0 NqEA013W96
0071P        KC2017 01 03.37178 14 03 50.78 -04 43 53.8          18.1 NqEA013W96
0071P        9C2017 01 04.26679 14 05 21.78 -04 51 51.8          18.7 NqEA013G40
0071P        9C2017 01 04.27232 14 05 22.31 -04 51 54.5          18.6 NqEA013G40
0071P        9C2017 01 04.27806 14 05 22.87 -04 51 57.4          18.5 NqEA013G40
 
Observer details:
349 Ageo.  Observer K. Kadota.  0.25-m f/5.0 reflector + CCD.
G40 Slooh.com Canary Islands Observatory.  Observer B. Lutkenhoner.  0.43-m
    f/6.8 Corrected Dall-Kirkham + CCD.
W96 CAO, San Pedro de Atacama (since 2013).  Observers A. Maury, J.-B. de
    Vanssay, J.-F. Soulier.  Measurer J.-F. Soulier.  0.4-m f/5.4
    Ritchey-Chretien + CCD.
 
Orbital elements:
  71P/Clark
Epoch 2006 May 25.0 TT = JDT 2453880.5
T 2006 June 6.80246 TT                                  MPCW
q   1.5621154            (2000.0)            P               Q
n   0.17862429     Peri.  208.75294     -0.03351676     +0.98925937
a   3.1225474      Node    59.65196     -0.88252863     +0.03751684
e   0.4997304      Incl.    9.48955     -0.46906274     -0.14127417
P   5.52
>From 915 observations 2005 Dec. 22-2017 Jan. 4, mean residual 0".9.
     Nongravitational parameters A1 = +2.30, A2 = +0.0750.

  71P/Clark
Epoch 2011 Dec. 25.0 TT = JDT 2455920.5
T 2011 Dec. 15.89739 TT                                 MPCW
q   1.5674901            (2000.0)            P               Q
n   0.17836216     Peri.  208.82362     -0.03305117     +0.98930231
a   3.1256060      Node    59.60797     -0.88249207     +0.03784788
e   0.4985004      Incl.    9.48108     -0.46916453     -0.14088459
P   5.53
>From 915 observations 2005 Dec. 22-2017 Jan. 4, mean residual 0".9.
     Nongravitational parameters A1 = +2.30, A2 = +0.0750.

  71P/Clark
Epoch 2017 June 16.0 TT = JDT 2457920.5
T 2017 June 30.20303 TT                                 MPCW
q   1.5862754            (2000.0)            P               Q
n   0.17738594     Peri.  208.91541     -0.03426129     +0.98937020
a   3.1370630      Node    59.44480     -0.88248416     +0.03642363
e   0.4943438      Incl.    9.44576     -0.46909260     -0.14078325
P   5.56
>From 915 observations 2005 Dec. 22-2017 Jan. 4, mean residual 0".9.
     Nongravitational parameters A1 = +2.30, A2 = +0.0750.

  71P/Clark
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5
T 2017 June 30.19563 TT                                 MPCW
q   1.5862437            (2000.0)            P               Q
n   0.17731475     Peri.  208.91273     -0.03427917     +0.98937119
a   3.1379027      Node    59.44637     -0.88249034     +0.03640069
e   0.4944892      Incl.    9.44485     -0.46907967     -0.14078223
P   5.56
>From 915 observations 2005 Dec. 22-2017 Jan. 4, mean residual 0".9.
     Nongravitational parameters A1 = +2.30, A2 = +0.0750.

Ephemeris:
  71P/Clark
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2016 12 05    13 14 28.5 -00 08 50   2.8077  2.4020    56.1    19.9  17.8  23.6
...
2016 12 20    13 39 33.0 -02 32 39   2.5655  2.3191    64.5    22.5  17.3  23.5
...
2016 12 28    13 53 02.8 -03 46 37   2.4336  2.2750    69.0    23.8  17.1  23.3
...
2017 01 03    14 03 12.3 -04 40 33   2.3341  2.2420    72.4    24.7  16.9  23.2
2017 01 04    14 04 53.9 -04 49 24   2.3175  2.2365    73.0    24.9  16.9  23.2
2017 01 05    14 06 35.6 -04 58 13   2.3009  2.2310    73.5    25.0  16.8  23.2
...
2017 01 11    14 16 46.1 -05 50 13   2.2013  2.1982    76.9    25.8  16.6  23.1
...
2017 01 19    14 30 20.0 -06 57 11   2.0691  2.1547    81.4    26.8  16.4  23.0
...
2017 02 03    14 55 34.8 -08 54 56   1.8253  2.0744    90.0    28.4  15.9  22.6

Gareth V. Williams           (C) Copyright 2017 MPC           M.P.E.C. 2017-A13




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