MPEC 2005-C47 : 1989 DA
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M.P.E.C. 2005-C47 Issued 2005 Feb. 10, 17:47 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
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1989 DA
Additional Observations:
J89D00A 9C2005 02 09.30642 15 47 34.63 -21 51 43.6 20.2 R EC047809
J89D00A 9C2005 02 09.31428 15 47 35.67 -21 51 51.8 20.6 R EC047809
J89D00A 9C2005 02 09.32178 15 47 36.64 -21 51 59.7 20.5 R EC047809
J89D00A 9C2005 02 10.31237 15 49 48.90 -22 09 02.8 20.4 R EC047809
J89D00A 9C2005 02 10.32029 15 49 49.91 -22 09 10.9 20.0 R EC047809
J89D00A 9C2005 02 10.32816 15 49 50.93 -22 09 19.0 20.0 R EC047809
J89D00A 9C2005 02 10.33752 15 49 52.13 -22 09 28.7 20.2 R EC047809
Observer details:
809 European Southern Observatory, La Silla. Observer A. Boattini. Measurers
A. Boattini, H. Scholl, G. Forti. 2.2-m f/5.9 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
050209 809 0.19- 0.12+ 050210 809 0.19- 0.12+ MPC 35680 +0.61 day
Orbital elements:
1989 DA PHA 0.042
Epoch 2005 Jan. 30.0 TT = JDT 2453400.5 MPC
M 10.69525 (2000.0) P Q
n 0.31056029 Peri. 139.47535 -0.62777465 -0.77811524
a 2.1595940 Node 349.35422 +0.68177728 -0.53671564
e 0.5455147 Incl. 6.48743 +0.37560448 -0.32630201
P 3.17 H 18.8 G 0.15 U 2
Residuals in seconds of arc
890227 675 0.2+ 0.1+ 890306 054 0.6- 1.0- 890527 413 0.2+ 0.9-
890227 675 0.3+ 0.3+ 890307 801 1.0+ 0.6+ 050209 809 0.0 0.1-
890228 675 (3.0+ 2.8+) 890309 801 0.3- 0.4+ 050209 809 0.1+ 0.0
890301 675 (1.9+ 2.4-) 890309 801 1.8+ 0.6- 050209 809 0.2- 0.1+
890301 675 (2.9- 1.2-) 890309 413 0.6- 0.7- 050210 809 0.2+ 0.2-
890303 801 0.6- 0.3- 890309 413 1.2- 0.1- 050210 809 0.0 0.0
890304 801 (0.2- 2.7+) 890309 413 0.1- 1.1- 050210 809 0.0 0.1+
890305 026 0.6+ 0.2- 890311 801 1.1+ 0.1+ 050210 809 0.1- 0.1+
890306 568 1.5- 1.0+ Y 890316 568 0.6- 0.7+
890306 054 0.2+ 0.7+ 890404 568 0.3+ 1.0+
Ephemeris:
1989 DA a,e,i = 2.16, 0.55, 6 q = 0.9815
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2005 02 09 15 46.88 -21 46.4 0.725 1.128 80.9 59.7 20.5
2005 02 19 16 07.51 -24 26.7 0.740 1.191 85.8 55.9 20.6
2005 03 01 16 24.01 -26 43.0 0.747 1.259 91.8 51.8 20.6
2005 03 11 16 35.68 -28 41.1 0.746 1.332 98.9 47.5 20.6
2005 03 21 16 41.73 -30 24.7 0.741 1.406 107.2 42.6 20.5
2005 03 31 16 41.51 -31 54.1 0.734 1.482 116.7 37.0 20.5
2005 04 10 16 34.60 -33 05.3 0.731 1.558 127.4 30.7 20.4
2005 04 20 16 21.39 -33 49.5 0.736 1.634 139.2 23.7 20.3
2005 04 30 16 03.62 -33 57.7 0.756 1.709 151.3 16.5 20.2
2005 05 10 15 44.12 -33 26.6 0.795 1.783 162.1 10.0 20.2
2005 05 20 15 26.08 -32 23.7 0.856 1.856 166.7 7.2 20.3
2005 05 30 15 11.85 -31 04.8 0.941 1.927 160.7 10.0 20.7
2005 06 09 15 02.36 -29 45.5 1.047 1.996 151.0 14.3 21.2
2005 06 19 14 57.63 -28 36.7 1.172 2.064 141.1 18.0 21.7
Gareth V. Williams (C) Copyright 2005 MPC M.P.E.C. 2005-C47
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