MPEC 2005-W07 : COMET C/2005 W1 (SOHO)
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M.P.E.C. 2005-W07 Issued 2005 Nov. 18, 04:44 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/2005 W1 (SOHO)
Observations:
CK05W010 2S2005 11 16.57923 15 32 11.8 -20 31 28 EW007249
CK05W010 2s2005 11 16.57923 2 -0.00789681 -0.00456985 -0.00162186 EW007249
CK05W010 2S2005 11 16.58756 15 32 05.8 -20 29 51 EW007249
CK05W010 2s2005 11 16.58756 2 -0.00789537 -0.00457121 -0.00162221 EW007249
CK05W010 2S2005 11 16.62923 15 31 29.7 -20 21 42 EW007249
CK05W010 2s2005 11 16.62923 2 -0.00788815 -0.00457798 -0.00162397 EW007249
CK05W010 2S2005 11 16.64590 15 31 15.4 -20 18 23 EW007249
CK05W010 2s2005 11 16.64590 2 -0.00788526 -0.00458070 -0.00162467 EW007249
CK05W010 2S2005 11 16.66273 15 31 00.2 -20 15 07 EW007249
CK05W010 2s2005 11 16.66273 2 -0.00788234 -0.00458344 -0.00162538 EW007249
CK05W010 2S2005 11 16.67090 15 30 53.9 -20 13 25 EW007249
CK05W010 2s2005 11 16.67090 2 -0.00788092 -0.00458476 -0.00162573 EW007249
CK05W010 2S2005 11 16.68784 15 30 39.1 -20 09 57 EW007249
CK05W010 2s2005 11 16.68784 2 -0.00787797 -0.00458752 -0.00162644 EW007249
CK05W010 2S2005 11 16.70450 15 30 24.7 -20 06 41 EW007249
CK05W010 2s2005 11 16.70450 2 -0.00787508 -0.00459023 -0.00162715 EW007249
CK05W010 2S2005 11 16.71256 15 30 16.1 -20 05 01 EW007249
CK05W010 2s2005 11 16.71256 2 -0.00787368 -0.00459154 -0.00162749 EW007249
CK05W010 2S2005 11 16.72923 15 30 02.9 -20 01 33 EW007249
CK05W010 2s2005 11 16.72923 2 -0.00787078 -0.00459426 -0.00162819 EW007249
CK05W010 2S2005 11 16.74590 15 29 48.5 -19 58 19 EW007249
CK05W010 2s2005 11 16.74590 2 -0.00786788 -0.00459697 -0.00162890 EW007249
CK05W010 2S2005 11 16.75424 15 29 41.4 -19 56 12 EW007249
CK05W010 2s2005 11 16.75424 2 -0.00786642 -0.00459833 -0.00162925 EW007249
CK05W010 2S2005 11 16.77090 15 29 27.1 -19 52 33 EW007249
CK05W010 2s2005 11 16.77090 2 -0.00786352 -0.00460104 -0.00162996 EW007249
CK05W010 2S2005 11 16.78756 15 29 13.4 -19 49 17 EW007249
CK05W010 2s2005 11 16.78756 2 -0.00786062 -0.00460375 -0.00163066 EW007249
CK05W010 2S2005 11 16.81371 15 28 51.4 -19 43 35 EW007249
CK05W010 2s2005 11 16.81371 2 -0.00785605 -0.00460801 -0.00163177 EW007249
CK05W010 2S2005 11 16.82923 15 28 38.0 -19 40 47 EW007249
CK05W010 2s2005 11 16.82923 2 -0.00785335 -0.00461054 -0.00163242 EW007249
CK05W010 2S2005 11 16.83756 15 28 30.9 -19 38 27 EW007249
CK05W010 2s2005 11 16.83756 2 -0.00785189 -0.00461189 -0.00163278 EW007249
CK05W010 2S2005 11 16.97924 15 26 32.3 -19 08 15 EW007249
CK05W010 2s2005 11 16.97924 2 -0.00782708 -0.00463497 -0.00163879 EW007249
CK05W010 2S2005 11 16.99590 15 26 19.6 -19 04 33 EW007249
CK05W010 2s2005 11 16.99590 2 -0.00782414 -0.00463769 -0.00163950 EW007249
CK05W010 2S2005 11 17.00423 15 26 13.3 -19 02 43 EW007249
CK05W010 2s2005 11 17.00423 2 -0.00782270 -0.00463904 -0.00163985 EW007249
CK05W010 2S2005 11 17.03785 15 25 47.7 -18 55 46 EW007249
CK05W010 2s2005 11 17.03785 2 -0.00781679 -0.00464451 -0.00164128 EW007249
CK05W010 2S2005 11 17.07923 15 25 15.8 -18 46 25 EW007249
CK05W010 2s2005 11 17.07923 2 -0.00780951 -0.00465126 -0.00164304 EW007249
CK05W010 2S2005 11 17.08756 15 25 10.4 -18 44 49 EW007249
CK05W010 2s2005 11 17.08756 2 -0.00780804 -0.00465261 -0.00164340 EW007249
CK05W010 2S2005 11 17.10423 15 24 57.3 -18 41 26 EW007249
CK05W010 2s2005 11 17.10423 2 -0.00780510 -0.00465533 -0.00164411 EW007249
CK05W010 2S2005 11 17.12090 15 24 46.3 -18 37 59 EW007249
CK05W010 2s2005 11 17.12090 2 -0.00780216 -0.00465805 -0.00164482 EW007249
CK05W010 2S2005 11 17.12923 15 24 40.5 -18 36 09 EW007249
CK05W010 2s2005 11 17.12923 2 -0.00780069 -0.00465940 -0.00164517 EW007249
CK05W010 2S2005 11 17.14590 15 24 30.0 -18 32 18 EW007249
CK05W010 2s2005 11 17.14590 2 -0.00779775 -0.00466212 -0.00164588 EW007249
CK05W010 2S2005 11 17.16277 15 24 17.5 -18 28 45 EW007249
CK05W010 2s2005 11 17.16277 2 -0.00779477 -0.00466487 -0.00164660 EW007249
CK05W010 2S2005 11 17.17090 15 24 13.0 -18 26 58 EW007249
CK05W010 2s2005 11 17.17090 2 -0.00779333 -0.00466620 -0.00164695 EW007249
CK05W010 3S2005 11 17.32090 15 22 50.8 -17 57 29 EW007249
CK05W010 3s2005 11 17.32090 2 -0.00776677 -0.00469065 -0.00165336 EW007249
CK05W010 3S2005 11 17.34590 15 22 38.7 -17 53 10 EW007249
CK05W010 3s2005 11 17.34590 2 -0.00776233 -0.00469472 -0.00165443 EW007249
CK05W010 3S2005 11 17.36256 15 22 33.7 -17 50 56 EW007249
CK05W010 3s2005 11 17.36256 2 -0.00775936 -0.00469744 -0.00165514 EW007249
CK05W010 3S2005 11 17.38756 15 22 22.4 -17 46 24 EW007249
CK05W010 3s2005 11 17.38756 2 -0.00775492 -0.00470152 -0.00165622 EW007249
CK05W010 3S2005 11 17.40450 15 22 18.6 -17 43 34 EW007249
CK05W010 3s2005 11 17.40450 2 -0.00775190 -0.00470428 -0.00165694 EW007249
CK05W010 3S2005 11 17.43088 15 22 14.2 -17 39 37 EW007249
CK05W010 3s2005 11 17.43088 2 -0.00774720 -0.00470859 -0.00165807 EW007249
CK05W010 3S2005 11 17.44590 15 22 07.5 -17 36 58 EW007249
CK05W010 3s2005 11 17.44590 2 -0.00774452 -0.00471104 -0.00165872 EW007249
CK05W010 3S2005 11 17.47090 15 22 00.7 -17 33 31 EW007249
CK05W010 3s2005 11 17.47090 2 -0.00774006 -0.00471511 -0.00165979 EW007249
CK05W010 3S2005 11 17.48756 15 21 57.4 -17 31 05 EW007249
CK05W010 3s2005 11 17.48756 2 -0.00773708 -0.00471783 -0.00166051 EW007249
CK05W010 3S2005 11 17.51257 15 21 52.9 -17 27 44 EW007249
CK05W010 3s2005 11 17.51257 2 -0.00773261 -0.00472191 -0.00166158 EW007249
CK05W010 3S2005 11 17.52924 15 21 49.6 -17 25 16 EW007249
CK05W010 3s2005 11 17.52924 2 -0.00772963 -0.00472463 -0.00166230 EW007249
CK05W010 3S2005 11 17.57090 15 21 47.3 -17 20 22 EW007249
CK05W010 3s2005 11 17.57090 2 -0.00772217 -0.00473143 -0.00166409 EW007249
CK05W010 3S2005 11 17.59591 15 21 43.5 -17 17 27 EW007249
CK05W010 3s2005 11 17.59591 2 -0.00771769 -0.00473551 -0.00166517 EW007249
CK05W010 3S2005 11 17.61258 15 21 45.1 -17 15 12 EW007249
CK05W010 3s2005 11 17.61258 2 -0.00771470 -0.00473823 -0.00166588 EW007249
CK05W010 3S2005 11 17.63756 15 21 43.7 -17 12 48 EW007249
CK05W010 3s2005 11 17.63756 2 -0.00771021 -0.00474231 -0.00166696 EW007249
CK05W010 3S2005 11 17.65450 15 21 42.4 -17 10 42 EW007249
CK05W010 3s2005 11 17.65450 2 -0.00770717 -0.00474508 -0.00166769 EW007249
CK05W010 3S2005 11 17.67923 15 21 44.2 -17 08 36 EW007249
CK05W010 3s2005 11 17.67923 2 -0.00770272 -0.00474911 -0.00166876 EW007249
CK05W010 3S2005 11 17.69590 15 21 44.5 -17 06 50 EW007249
CK05W010 3s2005 11 17.69590 2 -0.00769973 -0.00475184 -0.00166948 EW007249
Observer details:
249 SOHO. SOHO-LASCO coronagraphs C2 and C3. Comet detection by H. Su,
measurements by K. Battams, reductions by B. G. Marsden.
Orbital elements:
C/2005 W1 (SOHO)
T 2005 Nov. 17.28 TT MPC
q 0.0482 (2000.0) P Q
Peri. 23.44 -0.20106 -0.88748
Node 80.29 +0.81895 -0.38455
e 1.0 Incl. 24.88 +0.53749 +0.25395
From 47 observations 2005 Nov. 16-17.
It seems probable that this comet is identical with C/2000 C4 (MPEC
2000-C52; alternative direct orbit chosen on IAUC 7832 and MPC 44860),
although it is conceivably identical with C/2000 C3 or C/2000 C7, which
appeared around the same time (and, if they still exist, are also presumably
about to return). The following orbital elements have resulted from a
linkage of C/2000 C4 and C/2005 W1 (C2 observations only):
Epoch 2000 Jan. 17.0 TT = JDT 2451560.5
T 2000 Feb. 5.16819 TT MPC
q 0.0477861 (2000.0) P Q
n 0.17068404 Peri. 23.00778 -0.20067733 -0.88615942
a 3.2186526 Node 80.69749 +0.82010865 -0.38516850
e 0.9851534 Incl. 25.03921 +0.53586418 +0.25761735
P 5.77
Epoch 2005 Nov. 6.0 TT = JDT 2453680.5
T 2005 Nov. 17.27636 TT MPC
q 0.0481354 (2000.0) P Q
n 0.17042496 Peri. 23.18018 -0.20025215 -0.88774092
a 3.2219138 Node 80.48244 +0.82018332 -0.38331432
e 0.9850600 Incl. 24.85297 +0.53590894 +0.25492388
P 5.78
Residuals in seconds of arc
K0025 249 2.1- 1.8- Y K0025 249 5.3+ 1.8- Y K05BG 249 6.4+ 2.3+ Y
K0025 249 3.6- 8.6- Y K0025 249 0.6+ 1.1- Y K05BG 249 5.9+ 2.0+ Y
K0025 249 3.2- 1.4- Y K0025 249 0.5+ 3.2- Y K05BG 249 5.0- 4.6- Y
K0025 249 3.1- 5.9- Y K0025 249 4.6+ 4.2- Y K05BG 249 5.1+ 1.4- Y
K0025 249 0.0 5.8- Y K0025 249 3.8+ 2.7- Y K05BG 249 1.6+ 0.7+ Y
K0025 249 4.1- 10.0- Y K0025 249 1.8+ 2.2- Y K05BG 249 0.5+ 7.2- Y
K0025 249 0.5+ 8.0- Y K0025 249 0.5+ 1.7- Y K05BG 249 23.0- 6.2- Y
K0025 249 3.4- 4.5- Y K0025 249 5.2+ 3.0- Y K05BG 249 6.9- 4.0- Y
K0025 249 3.7- 7.1- Y K0025 249 4.3+ 3.2- Y K05BG 249 7.7- 17.0- Y
K0025 249 0.9- 5.6- Y K0025 249 6.2+ 2.1- Y K05BG 249 6.7- 6.0+ Y
K0025 249 3.5- 7.0- Y K0025 249 6.7+ 0.8- Y K05BG 249 6.4- 16.5+ Y
K0025 249 3.0- 6.0- Y K0025 249 0.3+ 1.5- Y K05BG 249 2.0+ 2.8+ Y
K0025 249 2.3- 6.8- Y K0025 249 3.5+ 4.0- Y K05BG 249 7.6+ 13.6+ Y
K0025 249 3.1- 6.4- Y K0025 249 2.9+ 3.7- Y K05BG 249 5.5+ 16.1- Y
K0025 249 0.6- 6.4- Y K0025 249 2.0+ 1.8- Y K05BG 249 5.4+ 17.5+ Y
K0025 249 2.4- 5.4- Y K0025 249 3.5+ 1.8- Y K05BG 249 7.6- 4.1- Y
K0025 249 2.3- 6.5- Y K0025 249 2.7+ 1.5- Y K05BG 249 0.6+ 1.1+ Y
K0025 249 3.2- 8.3- Y K0025 249 1.5+ 3.8- Y K05BH 249 4.6+ 2.7+ Y
K0025 249 0.9- 7.5- Y K0025 249 2.0+ 1.9+ Y K05BH 249 11.8+ 16.7- Y
K0025 249 3.2- 8.9- Y K0025 249 3.6+ 1.7- Y K05BH 249 1.0- 10.4+ Y
K0025 249 3.9- 4.1- Y K0025 249 7.9+ 3.7+ Y K05BH 249 8.5+ 0.4- Y
K0025 249 1.5- 6.1- Y K0025 249 0.3+ 2.1- Y K05BH 249 7.6- 10.3- Y
K0025 249 1.8- 6.7- Y K0025 249 5.7+ 0.1+ Y K05BH 249 2.4+ 14.9- Y
K0025 249 3.2+ 3.1- Y K0025 249 2.8- 0.2- Y K05BH 249 1.6+ 10.1- Y
K0025 249 2.6+ 4.6- Y K0025 249 0.6- 1.3+ Y K05BH 249 12.7+ 11.6+ Y
K0025 249 4.0+ 1.7- Y K0025 249 0.7+ 0.8+ Y K05BH 249 7.0- 14.6+ Y
K0025 249 0.0 2.2- Y K05BG 249 0.6- 6.0+ Y K05BH 249 3.6+ 21.1+ Y
K0025 249 5.7+ 3.9- Y K05BG 249 14.5+ 5.6+ Y
Brian G. Marsden (C) Copyright 2005 MPC M.P.E.C. 2005-W07
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