MPEC 2012-Q53 : 1994 EK
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M.P.E.C. 2012-Q53 Issued 2012 Aug. 25, 23:08 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
1994 EK
Revision to MPEC 1994-E03
Additional Observations:
J94E00K C2012 08 24.26794 22 30 45.46 -09 32 10.3 19.5 VrEQ053703
J94E00K C2012 08 24.27375 22 30 44.89 -09 32 10.3 20.0 VrEQ053703
J94E00K C2012 08 24.27958 22 30 44.24 -09 32 09.6 20.2 VrEQ053703
J94E00K C2012 08 24.28549 22 30 43.52 -09 32 09.6 19.5 VrEQ053703
J94E00K C2012 08 24.33835 22 30 37.29 -09 32 03.9 19.6 VrEQ053703
J94E00K C2012 08 24.34413 22 30 36.64 -09 32 01.0 19.2 VrEQ053703
J94E00K KC2012 08 24.34794622 30 35.89 -09 32 04.0 19.3 VuEQ053H21
J94E00K C2012 08 24.35002 22 30 36.00 -09 31 59.8 18.8 VrEQ053703
J94E00K KC2012 08 24.35250722 30 35.40 -09 32 03.1 19.5 VuEQ053H21
J94E00K KC2012 08 24.35704322 30 34.88 -09 32 02.6 19.5 VuEQ053H21
J94E00K C2012 08 24.94805 22 29 30.18 -09 30 54.7 18.9 RrEQ053106
J94E00K KC2012 08 24.95353 22 29 29.54 -09 30 54.0 18.8 RuEQ053104
J94E00K KC2012 08 24.95413 22 29 29.36 -09 30 52.0 18.8 RvEQ053470
J94E00K KC2012 08 24.95590 22 29 29.40 -09 30 56.5 19.3 RvEQ053470
J94E00K KC2012 08 24.95768 22 29 29.00 -09 30 52.9 18.9 RvEQ053470
J94E00K KC2012 08 24.95945 22 29 28.80 -09 30 52.2 18.9 RvEQ053470
J94E00K KC2012 08 24.96062 22 29 28.68 -09 30 53.3 18.9 RuEQ053104
J94E00K KC2012 08 24.96123 22 29 28.60 -09 30 52.7 18.8 RvEQ053470
J94E00K C2012 08 24.96321 22 29 28.32 -09 30 53.2 18.7 RrEQ053106
J94E00K KC2012 08 24.96712 22 29 27.91 -09 30 52.1 18.9 RuEQ053104
J94E00K C2012 08 24.99355 22 29 24.65 -09 30 48.3 19.0 RrEQ053106
J94E00K KC2012 08 25.21925122 28 59.44 -09 30 20.1 19.5 VvEQ053H21
J94E00K KC2012 08 25.22234122 28 59.10 -09 30 19.9 19.5 VvEQ053H21
J94E00K KC2012 08 25.23143922 28 57.98 -09 30 19.4 20.0 VvEQ053H21
J94E00K KC2012 08 25.23417222 28 57.63 -09 30 19.0 19.5 VvEQ053H21
J94E00K C2012 08 25.24647 22 28 56.64 -09 30 14.1 19.7 VrEQ053703
J94E00K C2012 08 25.25298 22 28 55.88 -09 30 14.6 19.4 VrEQ053703
J94E00K C2012 08 25.25954 22 28 55.09 -09 30 14.3 18.5 VrEQ053703
J94E00K C2012 08 25.26612 22 28 54.15 -09 30 11.9 19.6 VrEQ053703
J94E00K C2012 08 25.41573 22 28 36.915-09 29 50.95 19.2 rLEQ053F51
J94E00K C2012 08 25.42606 22 28 35.633-09 29 49.71 19.3 rLEQ053F51
J94E00K C2012 08 25.43690 22 28 34.295-09 29 48.43 19.7 gLEQ053F51
J94E00K C2012 08 25.44778 22 28 32.925-09 29 47.01 19.8 gLEQ053F51
J94E00K C2012 08 25.47370 22 28 30.84 -09 29 24.4 19.4 VrEQ053E12
J94E00K C2012 08 25.47440 22 28 30.79 -09 29 23.8 19.2 VrEQ053E12
J94E00K C2012 08 25.47509 22 28 30.65 -09 29 23.9 19.0 VrEQ053E12
J94E00K C2012 08 25.47579 22 28 30.60 -09 29 24.8 19.1 VrEQ053E12
Observer details:
104 San Marcello Pistoiese. Observer P. Bacci. Measurers P. Bacci, L. Tesi,
G. Fagioli. 0.60-m f/4 reflector + CCD.
106 Crni Vrh. Observer H. Mikuz. 0.6-m f/3.3 Deltagraph + CCD.
470 Ceccano. Observers G. Masi, F. Nocentini. Measurers G. Masi, U. Masi,
F. Nocentini. 0.43-m f/6.8 reflector + CCD.
703 Catalina Sky Survey. Observer A. D. Grauer. Measurers A. Boattini,
E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
S. M. Larson, R. H. McNaught. 0.68-m Schmidt + CCD.
E12 Siding Spring Survey. Observer R. H. McNaught. Measurers A. Boattini,
E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
S. M. Larson, R. H. McNaught. 0.5-m Uppsala Schmidt + CCD.
F51 Pan-STARRS 1, Haleakala. Observers N. Primak, A. Schultz, S. Watters,
J. Thiel, T. Goggia. Measurer PS1 Science Consortium. 1.8-m
Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers L. Buzzi, S. Foglia, T. Vorobjov, H. Devore. 0.61-m f/4.0
astrograph + CCD, 0.61-m f/4.5 astrograph + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or integer in degrees), reference and Delta-T
120824 703 31+ 13+ 120825 E12 31+ 13+ MPO164143 -29 day
Orbital elements:
1994 EK PHA, Earth MOID = 0.0315 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 344.39684 (2000.0) P Q
n 0.31262236 Peri. 99.21020 +0.30124765 -0.95235647
a 2.1500869 Node 333.10813 +0.82831829 +0.28609496
e 0.6387340 Incl. 6.04256 +0.47237555 +0.10567325
P 3.15 H 20.3 G 0.15 U 4
Residuals in seconds of arc
940307 691 0.0 0.4- 120824 703 0.6- 0.5+ 120824 104 0.3+ 0.1-
940307 691 0.1- 0.3- 120824 703 0.2- 0.5+ 120824 106 0.5- 0.9+
940307 691 0.1- 0.2+ 120824 703 0.7- 0.1- 120825 H21 0.2- 0.3+
940308 691 0.1- 0.1- 120824 703 1.7- 0.5- 120825 H21 0.3+ 0.1+
940308 691 0.7- 0.5- 120824 703 1.3- 1.7+ 120825 H21 0.0 0.5-
940308 691 0.0 0.2+ 120824 H21 0.1- 0.3- 120825 H21 0.2- 0.4-
940309 691 0.3- 0.1- 120824 703 (0.6- 2.2+) 120825 703 0.1+ 0.9+
940309 691 (1.9- 0.0 ) 120824 H21 0.4+ 0.0 120825 703 0.6+ 0.4-
940309 691 0.6- 0.3+ 120824 H21 0.5+ 0.1- 120825 703 0.7+ 0.8-
940312 691 1.0- 0.7+ 120824 106 1.2+ 0.0 120825 703 1.4- 0.8+
940312 691 0.6- 0.6+ 120824 104 0.4+ 0.4- 120825 F51 0.1+ 0.0
940312 691 0.6- 0.7+ 120824 470 0.6- 1.0+ 120825 F51 0.1+ 0.0
940318 691 0.2- 1.0+ 120824 470 (3.1+ 3.8-) 120825 F51 0.2+ 0.1-
940318 691 0.2- 0.8+ 120824 470 0.4+ 0.4- 120825 F51 0.1- 0.0
940318 691 0.7- 1.0+ 120824 470 0.5+ 0.1+ 120825 E12 0.1- 0.3-
940323 413 1.1+ 1.7- 120824 104 0.2+ 0.6- 120825 E12 0.4+ 0.2+
940323 413 0.3+ 1.3- 120824 470 0.7+ 0.6- 120825 E12 0.4- 0.0
120824 703 (2.1- 1.1+) 120824 106 0.3+ 0.3- 120825 E12 0.1+ 1.0-
Ephemeris:
1994 EK a,e,i = 2.15, 0.64, 6 q = 0.7768
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 07 26 22 53 06.2 -10 32 36 0.7757 1.6984 142.6 21.3 21.9
...
2012 08 10 22 48 16.2 -09 56 44 0.5749 1.5612 157.8 14.2 20.9
...
2012 08 18 22 40 23.1 -09 42 55 0.4817 1.4859 167.3 8.6 20.2
...
2012 08 24 22 31 14.2 -09 32 29 0.4187 1.4287 175.1 3.5 19.5
2012 08 25 22 29 24.2 -09 30 31 0.4088 1.4191 176.5 2.5 19.4
2012 08 26 22 27 28.4 -09 28 27 0.3991 1.4094 177.9 1.5 19.3
...
2012 09 01 22 13 44.1 -09 12 45 0.3442 1.3515 173.1 5.2 19.1
...
2012 09 09 21 48 42.0 -08 35 54 0.2805 1.2737 159.4 16.1 18.9
...
2012 09 24 20 34 24.6 -05 30 10 0.1902 1.1285 127.3 45.0 18.7
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-Q53
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