[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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