MPEC 2011-P56 : COMET 45P/HONDA-MRKOS-PAJDUSAKOVA
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M.P.E.C. 2011-P56 Issued 2011 Aug. 14, 23:41 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 https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET 45P/HONDA-MRKOS-PAJDUSAKOVA
Observations:
0045P C2011 08 07.66634 22 25 37.14 -41 10 25.3 11.1 TmEP056349
0045P C2011 08 07.66876 22 25 37.91 -41 10 49.9 mEP056349
0045P C2011 08 07.67117 22 25 38.89 -41 11 15.7 mEP056349
0045P C2011 08 12.53906 00 05 45.22 -65 07 53.2 15.2 NuEP056E07
0045P C2011 08 12.54093 00 05 52.05 -65 08 40.7 15.5 NuEP056E07
0045P C2011 08 12.54374 00 06 02.29 -65 09 52.8 15.2 NuEP056E07
0045P C2011 08 12.54468 00 06 05.62 -65 10 16.0 15.5 NuEP056E07
0045P C2011 08 12.60925 00 10 04.99 -65 37 32.3 15.2 NuEP056E07
0045P C2011 08 12.61085 00 10 10.99 -65 38 12.4 15.2 NuEP056E07
0045P C2011 08 12.61244 00 10 17.04 -65 38 52.5 14.8 NuEP056E07
0045P C2011 08 12.61404 00 10 23.05 -65 39 32.8 15.1 NuEP056E07
0045P C2011 08 14.11442 03 06 20.88 -73 19 00.8 13.8 ToEP056844
0045P C2011 08 14.11708 03 06 48.82 -73 19 11.5 13.8 ToEP056844
0045P C2011 08 14.11838 03 07 02.53 -73 19 17.2 13.7 ToEP056844
0045P C2011 08 14.12071 03 07 26.78 -73 19 26.1 13.7 ToEP056844
0045P QC2011 08 14.78198005 01 40.22 -71 55 34.1 12.4 TrEP056E12
0045P QC2011 08 14.78374905 01 56.76 -71 55 01.6 12.4 TrEP056E12
Observer details:
349 Ageo. Observer K. Kadota. 0.25-m f/5.0 reflector + CCD.
844 Los Molinos. Observers R. Salvo, S. Bruzzone, S. Roland, G. Tancredi,
M. Martinez. Measurer R. Salvo. 0.46-m f/2.7 Newtonian reflector + CCD.
E07 Murrumbateman. Observer D. Herald. 0.40-m f/10 Schmidt-Cassegrain + CCD.
E12 Siding Spring Survey. Observer R. H. McNaught. 0.5-m Uppsala Schmidt
+ CCD.
Orbital elements:
45P/Honda-Mrkos-Pajdusakova
Epoch 2011 Oct. 6.0 TT = JDT 2455840.5
T 2011 Sept. 28.78134 TT MPC
q 0.5296231 (2000.0) P Q
n 0.18770197 Peri. 326.24770 +0.56840436 -0.81940197
a 3.0210424 Node 89.00670 +0.77029889 +0.49834316
e 0.8246886 Incl. 4.25251 +0.28906074 +0.28325698
P 5.25
From 497 observations 2001 Apr. 4-2011 Aug. 14, mean residual 0".7.
Nongravitational parameters A1 = -0.68, A2 = -0.0419.
Ephemeris:
45P/Honda-Mrkos-Pajdusakova
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2011 07 15 21 45 30.8 -20 49 58 0.4780 1.4493 149.7 20.7 15.1 19.7
...
2011 07 30 21 59 47.8 -27 23 51 0.2443 1.2461 158.7 17.2 12.4 17.8
...
2011 08 07 22 21 38.8 -39 17 45 0.1334 1.1337 152.0 24.9 10.2 16.5
...
2011 08 13 00 39 09.1 -68 16 00 0.06868 1.0480 118.7 58.0 8.1 15.9
2011 08 14 02 46 12.4 -73 09 16 0.06304 1.0336 107.3 69.4 7.8 16.0
2011 08 15 05 33 44.6 -70 35 36 0.06028 1.0192 94.3 82.3 7.6 16.3
...
2011 08 21 08 59 23.3 -20 46 24 0.1004 0.9327 36.2 140.2 7.9 21.2
...
2011 08 29 09 24 20.0 -01 32 20 0.2064 0.8183 19.4 155.8 8.3 25.4
...
2011 09 13 09 44 10.4 +07 24 41 0.4507 0.6254 24.6 137.9 7.7 23.3
Gareth V. Williams (C) Copyright 2011 MPC M.P.E.C. 2011-P56
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