MPEC 2005-K16 : 1994 XD
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M.P.E.C. 2005-K16 Issued 2005 May 18, 01:46 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
1994 XD
Revision to MPEC 1994-X07
Additional Observations:
J94X00D C2005 05 12.38228 16 31 30.74 -12 42 22.8 19.1 EK016704
J94X00D C2005 05 12.39248 16 31 30.19 -12 42 18.5 19.3 EK016704
J94X00D C2005 05 12.40305 16 31 29.62 -12 42 13.0 19.4 EK016704
J94X00D C2005 05 12.41330 16 31 28.95 -12 42 06.3 19.4 EK016704
J94X00D C2005 05 12.42360 16 31 28.36 -12 42 01.3 19.2 EK016704
J94X00D C2005 05 16.28849 16 27 33.43 -12 03 31.4 18.3 EK016704
J94X00D C2005 05 16.29787 16 27 32.65 -12 03 25.3 18.6 EK016704
J94X00D C2005 05 16.30722 16 27 31.95 -12 03 18.6 18.8 EK016704
J94X00D C2005 05 16.31657 16 27 31.09 -12 03 13.1 18.6 EK016704
J94X00D C2005 05 16.32599 16 27 30.38 -12 03 06.1 18.8 EK016704
J94X00D C2005 05 16.35609 16 27 28.06 -12 02 46.4 16.9 R EK016G96
J94X00D C2005 05 16.36551 16 27 27.29 -12 02 40.3 17.8 R EK016G96
J94X00D C2005 05 16.37496 16 27 26.53 -12 02 33.9 17.8 R EK016G96
J94X00D C2005 05 16.38435 16 27 25.80 -12 02 26.9 17.7 R EK016G96
J94X00D C2005 05 17.15149 16 26 28.46 -11 53 31.6 18.6 R EK016I77
J94X00D C2005 05 17.15231 16 26 29.32 -11 53 51.1 18.3 R EK016649
J94X00D C2005 05 17.15575 16 26 28.05 -11 53 28.4 18.3 R EK016I77
J94X00D C2005 05 17.16409 16 26 27.38 -11 53 23.1 18.0 R EK016I77
J94X00D C2005 05 17.16473 16 26 28.32 -11 53 42.5 18.9 R EK016649
J94X00D C2005 05 17.16711 16 26 28.08 -11 53 41.1 18.8 R EK016649
J94X00D C2005 05 17.17125 16 26 27.69 -11 53 38.4 17.9 R EK016649
J94X00D C2005 05 17.28652 16 26 18.17 -11 52 17.4 18.3 EK016704
J94X00D C2005 05 17.29579 16 26 17.42 -11 52 11.8 18.7 EK016704
J94X00D C2005 05 17.30506 16 26 16.69 -11 52 06.2 18.5 EK016704
Observer details:
649 Powell Observatory, Louisburg. Observer R. Trentman. 0.75-m Newtonian
reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, R. Huber, L. Manguso, D. Torres, R. Kracke, M. McCleary,
H. Stange, A. Milner. Measurers J. Stuart, R. Sayer, J. Evans, J. Kommers.
1.0-m f/2.15 reflector + CCD.
G96 Mt. Lemmon Survey. Observer S. M. Larson. Measurers E. C. Beshore,
C. M. Casey, E. J. Christensen, G. J. Garradd, A. Grauer, R. E. Hill,
S. M. Larson, R. H. McNaught. 1.5-m reflector + CCD.
I77 CEAMIG-REA Observatory, Belo Horizonte. Observers C. Jacques, E. Pimentel.
Measurer C. Jacques. 0.30-m f/3.0 Schmidt-Cassegrain + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
050512 70412.89+ 2.27- 050517 70414.43+ 2.45- MPO 4889 -8.1 day
Orbital elements:
1994 XD PHA 0.018
Epoch 2005 Jan. 30.0 TT = JDT 2453400.5 MPC
M 309.73214 (2000.0) P Q
n 0.27373523 Peri. 249.21772 +0.96601244 +0.24749136
a 2.3491761 Node 96.39430 -0.20032761 +0.89920069
e 0.7328295 Incl. 4.30617 -0.16336713 +0.36081316
P 3.60 H 19.0 G 0.15 U 3
Residuals in seconds of arc
941201 691 0.8- 0.4+ 941210 691 0.4- 0.2- 050516 704 0.6+ 0.2+
941201 691 (4.6+ 0.7-) 941210 691 0.2+ 0.4- 050516 704 1.0- 0.4-
941201 691 0.2- 0.1- 941210 691 0.0 0.0 050516 704 0.3- 0.4+
941202 691 0.4+ 0.1+ 941226 104 0.6- 0.7- 050516 G96 0.0 0.1-
941202 691 0.1+ 0.0 941226 104 1.2+ 0.4- 050516 G96 0.2- 0.3-
941202 691 0.1+ 0.0 941226 104 0.7- 0.3+ 050516 G96 0.1- 0.1-
941202 691 0.1- 0.2+ 941226 104 0.6+ 0.8+ 050516 G96 0.3+ 0.6+
941202 691 0.2+ 0.1+ 941228 691 0.3- 0.1- 050517 I77 0.2+ 0.1-
941202 691 0.2+ 0.1+ 941228 691 0.1+ 0.0 050517 649 0.2- 0.2-
941203 691 0.0 0.2+ 941228 691 0.2- 0.0 050517 I77 0.3- 0.2+
941203 691 0.2+ 0.3- 950107 691 0.7- 0.3- 050517 I77 0.5+ 0.3-
941203 691 0.2+ 0.3- 050512 704 0.0 1.3+ 050517 649 0.2+ 0.0
941205 360 0.1- 0.5+ 050512 704 0.6+ 0.0 050517 649 0.4- 0.1-
941205 360 0.4- 0.7+ 050512 704 1.1+ 0.3- 050517 649 1.0- 0.2-
941208 691 0.1+ 0.2- 050512 704 0.1- 0.7+ 050517 704 0.6- 0.9+
941208 691 0.1- 0.3- 050512 704 0.1- 0.0 050517 704 0.3+ 0.2+
941209 360 0.1+ 0.2- 050516 704 0.3+ 0.4- 050517 704 1.4+ 0.6-
941209 360 0.7+ 0.0 050516 704 0.2- 0.4-
Ephemeris:
1994 XD a,e,i = 2.35, 0.73, 4 q = 0.6276
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2005 05 10 16 33.30 -13 02.6 0.470 1.458 158.9 14.5 19.0
2005 05 20 16 22.31 -11 18.3 0.336 1.343 167.9 9.1 17.9
2005 05 30 15 56.38 -08 06.1 0.217 1.225 164.4 12.8 16.9
2005 06 09 14 44.40 +00 19.4 0.116 1.104 137.9 38.0 16.1
2005 06 19 10 25.95 +22 51.6 0.0759 0.984 62.7 113.3 17.7
Timothy B. Spahr (C) Copyright 2005 MPC M.P.E.C. 2005-K16
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