MPEC 2009-U22 : 1995 SD1
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M.P.E.C. 2009-U22 Issued 2009 Oct. 17, 14:55 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 http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
1995 SD1
Revision to MPEC 1995-U04
Additional Observations:
J95S01D C2009 10 16.37046 05 44 59.67 +05 56 24.3 21.5 R EU022926
J95S01D C2009 10 16.37527 05 44 59.99 +05 56 19.8 21.6 R EU022926
J95S01D C2009 10 16.38008 05 45 00.34 +05 56 14.1 21.2 R EU022926
J95S01D C2009 10 17.46741 05 46 15.20 +05 37 53.3 21.0 R EU022926
J95S01D C2009 10 17.47229 05 46 15.51 +05 37 48.0 20.5 R EU022926
J95S01D C2009 10 17.47709 05 46 15.86 +05 37 42.8 20.6 R EU022926
Observer details:
926 Tenagra II Observatory. Observers P. R. Holvorcem, M. Schwartz. Measurer
P. R. Holvorcem. 0.81-m f/7 Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
091016 926 0.31+ 0.07+ 091017 926 0.31+ 0.07+ MPC 26422 -0.25 day
Orbital elements:
1995 SD1 Earth MOID = 0.2018 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 24.95602 (2000.0) P Q
n 0.21219209 Peri. 189.63213 +0.98999319 -0.14104655
a 2.7838762 Node 178.45566 +0.13788685 +0.96024465
e 0.5684908 Incl. 9.39483 +0.03001167 +0.24090678
P 4.64 H 20.6 G 0.15 U 0
Residuals in seconds of arc
950923 691 0.0 0.5+ 951013 360 0.5+ 0.0 951026 360 0.2- 0.1-
950923 691 0.1+ 0.5+ 951013 360 0.0 0.2- 951026 360 0.2- 0.0
950923 691 0.2+ 0.4+ 951013 360 0.3+ 0.1- 951026 104 0.2+ 0.3-
950924 691 0.1+ 0.2+ 951016 587 0.8+ 0.1- 951026 104 0.2+ 0.0
950924 691 0.1+ 0.3+ 951016 587 0.2+ 0.7- 951026 104 0.2- 0.2+
950924 691 0.2+ 0.1+ 951018 691 0.1+ 0.0 951026 104 0.2- 0.7+
950926 691 0.3- 0.2- 951018 691 0.1+ 0.0 951029 413 0.2+ 0.1-
950926 691 0.0 0.6- 951018 691 0.1+ 0.1- 951029 413 0.4+ 0.2+
950930 568 0.0 0.0 951018 608 1.2- 1.5+ 951117 691 0.2+ 0.1-
950930 108 (3.2+ 1.1+) 951018 608 (1.9- 2.1+) 951117 691 0.6+ 0.1+
950930 108 (2.2+ 1.4-) 951018 587 0.1+ 0.3- 951117 691 0.4+ 0.0
950930 108 (4.1+ 0.6+) 951018 587 0.2+ 0.1+ 951130 691 0.6- 0.0
950930 108 1.2- 1.8- 951019 608 0.4- 0.1- 951130 691 0.1- 0.2+
951001 691 0.3+ 0.0 951019 608 0.5- 0.2+ 951130 691 0.1- 0.1+
951001 691 0.5+ 0.1- 951019 413 0.2- 0.4+ 091016 926 0.2- 0.1+
951003 360 0.4+ 1.2- 951019 413 0.4- 0.0 091016 926 0.2- 0.4+
951003 360 0.6+ 1.7- 951020 413 0.0 0.2- 091016 926 0.2+ 0.4-
951003 360 0.1- 0.7- 951020 413 0.2- 0.2+ 091017 926 0.5- 0.6+
951013 046 1.3- 0.9+ 951020 360 0.1+ 0.2- 091017 926 0.2- 0.2+
951013 046 0.6- 0.3- 951020 360 0.2+ 0.2- 091017 926 0.7+ 0.1-
951013 046 0.6- 0.2+ 951020 360 0.0 0.3-
951013 046 1.4- 0.3+ 951026 360 0.3- 0.3-
Ephemeris:
1995 SD1 a,e,i = 2.78, 0.57, 9 q = 1.2013
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 10 16 05 44.53 +06 02.9 0.482 1.280 115.4 44.8 21.3
2009 10 26 05 53.14 +03 23.3 0.493 1.323 122.1 39.6 21.2
2009 11 05 05 54.88 +01 13.3 0.508 1.374 130.0 33.6 21.2
2009 11 15 05 50.67 -00 16.8 0.530 1.431 138.7 27.1 21.2
2009 11 25 05 42.10 -00 58.5 0.562 1.492 147.4 20.9 21.2
2009 12 05 05 31.50 -00 49.9 0.609 1.557 154.3 16.0 21.4
2009 12 15 05 21.22 +00 02.6 0.673 1.624 156.7 13.9 21.6
2009 12 25 05 13.16 +01 27.7 0.755 1.693 153.6 15.0 22.0
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-U22
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