MPEC 2007-K73 : COMET C/2006 WD4 (LEMMON)
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M.P.E.C. 2007-K73 Issued 2007 May 31, 14:52 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 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 http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET C/2006 WD4 (LEMMON)
Observations:
CK06W04D C2007 05 26.47410 07 49 26.90 +20 10 26.2 EK073349
CK06W04D C2007 05 26.47470 07 49 27.79 +20 10 28.3 EK073349
CK06W04D C2007 05 26.47529 07 49 28.58 +20 10 28.9 EK073349
CK06W04D C2007 05 26.47588 07 49 29.45 +20 10 31.0 14.1 T EK073349
CK06W04D C2007 05 27.88055 08 20 31.89 +21 00 31.5 15.8 N EK073J70
CK06W04D C2007 05 27.88195 08 20 33.29 +21 00 34.9 16.1 N EK073J70
CK06W04D C2007 05 27.88335 08 20 34.92 +21 00 37.1 15.9 N EK073J70
CK06W04D C2007 05 28.85767 08 38 18.64 +21 20 02.9 15.9 N EK073J70
CK06W04D C2007 05 28.85905 08 38 19.82 +21 20 02.9 15.9 N EK073J70
CK06W04D C2007 05 28.85973 08 38 20.57 +21 20 03.9 16.1 N EK073J70
CK06W04D C2007 05 28.86047 08 38 21.37 +21 20 03.1 15.9 N EK073J70
CK06W04D C2007 05 29.86293 08 53 53.01 +21 31 33.8 16.9 T EK073619
CK06W04D C2007 05 29.86363 08 53 53.89 +21 31 33.6 16.6 T EK073619
CK06W04D C2007 05 29.86436 08 53 54.44 +21 31 34.1 16.6 T EK073619
Observer details:
349 Ageo. Observer K. Kadota. 0.25-m f/5.0 reflector + CCD.
619 Sabadell. Observer R. Josa. 0.50-m f/4 reflector + CCD.
J70 Obs. Astronomico Vega del Thader, El Palmar. Observer J. P. Navarro P.
0.20-m Schmidt-Cassegrain + CCD.
Orbital elements:
C/2006 WD4 (Lemmon)
Epoch 2007 Apr. 10.0 TT = JDT 2454200.5
T 2007 Apr. 28.39836 TT MPC
q 0.5912379 (2000.0) P Q
z +0.0017204 Peri. 292.69168 +0.33343766 -0.88153338
+/-0.0000019 Node 226.79061 -0.60468915 -0.47197407
e 0.9989828 Incl. 152.70415 -0.72330516 -0.01180529
From 80 observations 2006 Nov. 20-2007 May 29, mean residual 0".58.
The "original" and "future" barycentric values of 1/a are +0.002247
and +0.001790 (+/- 0.000002) AU^-1, respectively.
Brian G. Marsden (C) Copyright 2007 MPC M.P.E.C. 2007-K73
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