MPEC 2004-K20 : 2001 DF47
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M.P.E.C. 2004-K20 Issued 2004 May 19, 10:14 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 Steven and Michele Kirsch Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2001 DF47
Revision to MPEC 2001-D25
Additional Observations:
K01D47F HC2004 05 16.26925 16 48 11.77 +21 13 38.3 22.2 V EK020291
K01D47F HC2004 05 16.27677 16 48 10.92 +21 13 44.6 22.4 V EK020291
K01D47F HC2004 05 19.36204 16 42 32.05 +21 50 24.6 22.2 V EK020291
K01D47F HC2004 05 19.36826 16 42 31.25 +21 50 29.4 21.3 V EK020291
K01D47F HC2004 05 19.37446 16 42 30.58 +21 50 33.3 21.8 V EK020291
Observer details:
291 LPL/Spacewatch II. Observers M. Block, T. H. Bressi. 1.8-m f/2.7
reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
040516 291 0.03- 0.01+ 040519 291 0.03- 0.01+ MPO 53680 +0.044 day
Orbital elements:
2001 DF47 PHA 0.014
Epoch 2004 July 14.0 TT = JDT 2453200.5 MPC
M 248.52145 (2000.0) P Q
n 0.73610732 Peri. 260.08658 +0.65636225 -0.73415470
a 1.2148107 Node 146.74019 +0.75433044 +0.64264122
e 0.3706831 Incl. 18.47530 -0.01319791 +0.21915551
P 1.34 H 20.3 G 0.15 U 4
Residuals in seconds of arc
010217 704 0.1- 0.9+ 010220 046 0.8+ 0.4+ 010222 587 0.4+ 0.1+
010217 704 0.5+ 0.4- 010220 046 0.5- 0.6- 010224 118 0.4+ 0.3+
010217 704 0.2- 0.2- 010220 046 0.4- 0.1- 010224 118 0.5- 0.4+
010217 704 0.4- 0.3+ 010220 046 0.4+ 0.1+ 010225 649 0.1- 0.6+
010219 704 0.2- 0.2- 010220 046 0.3+ 0.3- 010225 649 0.2+ 0.0
010219 704 0.3- 0.0 010220 046 0.2+ 0.5- 010225 649 0.2- 0.1+
010219 926 0.2+ 0.1- 010221 859 1.8+ 0.2+ 010225 360 0.3- 0.7-
010219 926 0.1+ 0.1- 010221 859 1.9- 0.6- 010225 360 0.5+ 0.4-
010219 926 0.2+ 0.1- 010221 859 0.7+ 0.1- 010225 360 0.2+ 0.8+
010219 704 0.5+ 1.1+ 010221 854 0.4- 1.8+ 010227 926 0.4- 0.4-
010219 704 0.1- 0.1- 010221 854 1.2- 0.9+ 010227 926 0.1+ 0.3+
010220 926 0.3+ 0.2- 010221 854 0.5- 0.4+ 010227 926 0.3- 0.2-
010220 926 0.2+ 0.2- 010221 854 0.7- 0.5- 010227 118 0.2+ 0.1+
010220 926 0.2+ 0.3- 010221 926 0.0 0.1- 010227 118 0.3+ 0.1-
010220 704 0.2+ 0.7- 010221 926 0.5+ 0.2- 010227 118 0.0 0.3-
010220 704 0.3- 0.4- 010221 926 0.1+ 0.1- 010316 540 0.3- 0.8-
010220 704 0.2+ 0.1+ 010221 670 0.6- 1.2+ 010316 540 0.2+ 0.6+
010220 704 0.1- 0.1- 010222 704 0.2- 0.2- 040516 291 0.2- 0.1+
010220 704 0.4+ 0.5- 010222 704 0.6- 0.2+ 040516 291 0.5- 0.5+
010220 704 0.0 1.3- 010222 704 0.5- 0.2+ 040519 291 0.6+ 0.7-
010220 704 0.1- 0.0 010222 704 0.6+ 0.1- 040519 291 0.4- 0.1+
010220 704 0.1+ 0.0 010222 587 0.4+ 0.3+ 040519 291 0.5+ 0.0
Ephemeris:
2001 DF47 a,e,i = 1.21, 0.37, 18 q = 0.7645
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 05 15 16 50.40 +20 56.9 0.762 1.643 135.4 25.6 22.0
2004 05 25 16 31.46 +22 40.4 0.740 1.628 136.0 25.6 21.9
2004 06 04 16 10.77 +23 08.1 0.733 1.609 133.5 27.2 21.9
2004 06 14 15 51.25 +22 15.8 0.741 1.586 128.5 30.1 22.0
2004 06 24 15 35.42 +20 13.0 0.760 1.559 122.0 33.5 22.1
2004 07 04 15 24.69 +17 18.3 0.789 1.528 115.1 37.1 22.2
2004 07 14 15 19.29 +13 50.4 0.823 1.493 108.1 40.3 22.3
2004 07 24 15 18.89 +10 03.3 0.859 1.454 101.4 43.2 22.5
Timothy B. Spahr (C) Copyright 2004 MPC M.P.E.C. 2004-K20
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