MPEC 2006-S89 : COMET C/2006 M4 (SWAN)
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M.P.E.C. 2006-S89 Issued 2006 Sept. 29, 17:54 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.
Supported in part by the Brinson Foundation
Supported in part by the TABASGO Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET C/2006 M4 (SWAN)
Observations:
CK06M040 C2006 09 23.80588 11 29 57.78 +28 34 17.2 ES089349
CK06M040 C2006 09 23.80698 11 29 58.09 +28 34 19.6 ES089349
CK06M040 C2006 09 23.80808 11 29 58.37 +28 34 22.0 7.5 T ES089349
CK06M040 C2006 09 26.42902 11 42 00.73 +30 06 27.6 9.8 N ES089850
CK06M040 C2006 09 26.43289 11 42 01.77 +30 06 36.0 9.9 N ES089850
CK06M040 C2006 09 26.43682 11 42 02.98 +30 06 44.8 9.9 N ES089850
CK06M040 C2006 09 26.44074 11 42 04.35 +30 06 54.0 8.1 T ES089850
CK06M040 C2006 09 27.43219 11 46 59.98 +30 41 48.4 9.9 N ES089850
CK06M040 C2006 09 27.43688 11 47 01.44 +30 41 58.4 7.7 T ES089850
CK06M040 C2006 09 27.44157 11 47 02.84 +30 42 08.3 9.9 N ES089850
CK06M040 C2006 09 27.81313 11 48 57.20 +30 55 13.3 ES089349
CK06M040 C2006 09 27.81393 11 48 57.46 +30 55 15.0 ES089349
CK06M040 C2006 09 27.81474 11 48 57.71 +30 55 16.7 7.0 T ES089349
CK06M040 C2006 09 27.83419 11 49 03.76 +30 55 57.9 ES089D61
CK06M040 C2006 09 27.83513 11 49 04.11 +30 55 59.5 ES089D61
CK06M040 C2006 09 27.83545 11 49 04.20 +30 56 00.2 8.0 T ES089D61
CK06M040 C2006 09 27.83578 11 49 04.34 +30 56 01.9 7.9 T ES089D61
CK06M040 C2006 09 27.83606 11 49 04.47 +30 56 01.9 8.0 T ES089D61
CK06M040 C2006 09 27.83638 11 49 04.48 +30 56 01.6 ES089D61
CK06M040 C2006 09 29.43911 11 57 40.74 +31 52 18.0 7.2 T ES089850
CK06M040 C2006 09 29.44843 11 57 44.31 +31 52 44.7 9.9 N ES089850
Observer details:
349 Ageo. Observer K. Kadota. 0.25-m f/5.0 reflector + CCD.
850 Cordell-Lorenz Observatory, Sewanee. Observers D. T. Durig, C. C. Grigsby.
0.30-m f/9.7 Schmidt-Cassegrain + CCD.
D61 Suntopia Marina, Sumoto. Observer S. Nakano. 0.10-m f/6.5 refractor
+ CCD.
Orbital elements:
C/2006 M4 (SWAN)
Epoch 2006 Sept. 22.0 TT = JDT 2454000.5
T 2006 Sept. 28.72820 TT MPC
q 0.7830401 (2000.0) P Q
z -0.0003384 Peri. 62.59160 -0.22213602 +0.84758993
+/-0.0000717 Node 148.72683 +0.15020218 -0.45862084
e 1.0002650 Incl. 111.82213 +0.96337682 +0.26694238
From 75 observations 2006 July 12-Sept. 29, mean residual 0".60.
Ephemeris:
C/2006 M4 (SWAN)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2006 09 22 11 22.41 +27 31.5 1.522 0.794 28.2 36.7 8.4
2006 10 02 12 12.81 +33 20.6 1.303 0.786 37.0 50.1 8.0
2006 10 12 13 31.90 +37 58.5 1.113 0.824 45.5 59.8 7.9
2006 10 22 15 21.58 +37 41.2 1.006 0.901 53.5 62.6 8.1
2006 11 01 17 09.12 +30 19.1 1.026 1.006 59.8 58.5 8.6
2006 11 11 18 25.99 +20 19.5 1.169 1.127 62.3 51.1 9.4
2006 11 21 19 16.74 +11 57.7 1.391 1.257 61.1 43.5 10.2
2006 12 01 19 52.10 +05 57.4 1.651 1.392 57.3 36.6 11.0
The "original" and "future" barycentric values of 1/a are +0.000106
and +0.000658 (+/- 0.000072) AU^-1, respectively.
Brian G. Marsden (C) Copyright 2006 MPC M.P.E.C. 2006-S89
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