MPEC 2012-A28 : 2012 AC3
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M.P.E.C. 2012-A28 Issued 2012 Jan. 4, 22:37 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.minorplanetcenter.net/ ISSN 1523-6714
2012 AC3
Observations:
K12A03C* C2012 01 03.12521 04 57 43.23 +27 07 57.0 18.3 VrEA028703
K12A03C C2012 01 03.12921 04 57 43.70 +27 07 38.8 18.7 VrEA028703
K12A03C C2012 01 03.13313 04 57 43.88 +27 07 22.9 18.9 VrEA028703
K12A03C C2012 01 03.13707 04 57 44.35 +27 07 05.9 18.3 VrEA028703
K12A03C C2012 01 03.19288 04 57 48.38 +27 03 05.8 19.1 RoEA028G48
K12A03C C2012 01 03.19354 04 57 48.38 +27 03 02.5 19.5 RoEA028G48
K12A03C C2012 01 03.19419 04 57 48.46 +27 02 59.7 19.4 RoEA028G48
K12A03C KC2012 01 03.24852304 57 50.94 +26 58 45.5 18.9 VrEA028H21
K12A03C KC2012 01 03.25392404 57 51.38 +26 58 21.0 18.9 VrEA028H21
K12A03C KC2012 01 03.25926904 57 51.82 +26 57 56.9 19.3 VrEA028H21
K12A03C KC2012 01 03.79831 04 58 57.36 +26 17 27.0 19.6 RuEA028B49
K12A03C KC2012 01 03.80556 04 58 58.00 +26 16 55.0 19.9 RuEA028B49
K12A03C KC2012 01 03.81391 04 58 58.71 +26 16 18.0 19.8 RuEA028B49
K12A03C KC2012 01 03.83543 04 59 00.46 +26 14 26.8 uEA028J95
K12A03C KC2012 01 03.84004 04 59 00.91 +26 14 06.7 uEA028J95
K12A03C KC2012 01 03.84637 04 59 01.47 +26 13 37.9 19.3 RuEA028J95
K12A03C C2012 01 04.23686 04 59 44.23 +25 44 01.5 18.6 VrEA028G96
K12A03C C2012 01 04.23743 04 59 44.30 +25 43 58.7 18.6 VrEA028G96
K12A03C C2012 01 04.23802 04 59 44.34 +25 43 55.9 18.6 VrEA028G96
K12A03C C2012 01 04.23860 04 59 44.37 +25 43 53.3 18.6 VrEA028G96
K12A03C HC2012 01 04.28969 04 59 48.73 +25 39 53.1 oEA028291
K12A03C HC2012 01 04.29067 04 59 48.81 +25 39 47.6 oEA028291
K12A03C HC2012 01 04.29163 04 59 48.90 +25 39 43.2 oEA028291
K12A03C KC2012 01 04.84694 05 00 58.39 +24 55 19.9 19.7 VuEA028B28
K12A03C KC2012 01 04.84933 05 00 58.60 +24 55 07.7 19.9 VuEA028B28
K12A03C KC2012 01 04.85095 05 00 58.95 +24 54 54.5 19.8 RcEA028A24
K12A03C KC2012 01 04.85488 05 00 59.59 +24 54 41.3 19.8 RcEA028A24
Observer details:
291 LPL/Spacewatch II. Observer T. H. Bressi. 1.8-m f/2.7 reflector + CCD.
703 Catalina Sky Survey. Observer R. A. Kowalski. Measurers J. D. Ahern,
E. C. Beshore, A. Boattini, G. J. Garradd, A. R. Gibbs, P. Tricarico,
A. D. Grauer, R. E. Hill, R. A. Kowalski, S. M. Larson, R. H. McNaught.
0.68-m Schmidt + CCD.
A24 New Millennium Observatory, Mozzate. Observer E. Cozzi. 0.36-m f/11
Schmidt-Cassegrain + CCD.
B28 Mandi Observatory, Pagnacco. Observer P. Corelli. 0.45-m f/4.5 reflector
+ CCD.
B49 Paus Observatory, Sabadell. Observer J. Camarasa. 0.30-m f/4 Newtonian
reflector + CCD.
G48 Doc Greiner Research Obs., Rancho Hildalgo. Observer M. Mills. 0.40-m
f/10 Schmidt-Cassegrain + CCD.
G96 Mt. Lemmon Survey. Observer A. Boattini. Measurers J. D. Ahern,
E. C. Beshore, A. Boattini, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson, R. H. McNaught. 1.5-m reflector + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers L. Buzzi, H. Devore, S. Foglia, T. Vorobjov. 0.76-m f/6.65
Ritchey-Chretien + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2012 AC3 Earth MOID = 0.0659 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 18.15750 (2000.0) P Q
n 0.44292650 Peri. 208.97939 -0.66185848 -0.73885858
a 1.7044396 Node 282.76875 +0.71036568 -0.56423518
e 0.3949921 Incl. 7.45951 +0.23942420 -0.36841100
P 2.23 H 23.0 G 0.15 U 8
Residuals in seconds of arc
120103 703 0.9- 0.4+ 120103 H21 0.2+ 0.0 120104 G96 0.3+ 0.1+
120103 703 1.0+ 0.7- 120103 B49 0.3+ 0.1- 120104 G96 0.0 0.2+
120103 703 0.8- 0.1+ 120103 B49 0.1+ 0.2+ 120104 291 0.2+ 0.7+
120103 703 1.3+ 0.0 120103 B49 0.4- 0.4+ 120104 291 0.2+ 0.2-
120103 G48 0.1- 0.4+ 120103 J95 0.1+ 0.5- 120104 291 0.3+ 0.0
120103 G48 0.8- 0.1- 120103 J95 0.4+ 0.2+ 120104 B28 0.1- 1.6+
120103 G48 0.4- 0.0 120103 J95 0.1+ 0.1- 120104 B28 0.3- 0.9+
120103 H21 0.2+ 0.0 120104 G96 0.1+ 0.2+ 120104 A24 (2.1- 4.6-)
120103 H21 0.2+ 0.1- 120104 G96 0.4+ 0.1+ 120104 A24 1.5+ 1.0+
Ephemeris:
2012 AC3 a,e,i = 1.70, 0.39, 7 q = 1.0312
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2011 12 05 04 43 17.8 +43 04 36 0.2222 1.1959 159.2 17.0 21.0
...
2011 12 20 04 44 04.5 +38 45 23 0.1532 1.1285 159.3 17.9 20.1
...
2011 12 28 04 49 11.1 +33 25 47 0.1237 1.0982 156.7 20.7 19.7
...
2012 01 03 04 57 26.6 +27 17 23 0.1049 1.0785 153.9 23.7 19.4
2012 01 04 04 59 17.0 +26 02 35 0.1021 1.0755 153.3 24.2 19.3
2012 01 05 05 01 16.0 +24 43 31 0.09941 1.0726 152.7 24.8 19.3
...
2012 01 11 05 16 25.2 +15 11 52 0.08535 1.0571 148.5 29.1 19.0
...
2012 01 19 05 46 01.1 -01 47 02 0.07408 1.0418 140.1 37.2 18.9
...
2012 02 03 07 10 09.1 -34 02 53 0.08099 1.0312 122.4 53.8 19.6
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-A28
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