MPEC 2012-Q17 : 2012 PQ28
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M.P.E.C. 2012-Q17 Issued 2012 Aug. 18, 15:19 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
2012 PQ28
Observations:
K12P28Q*QC2012 08 15.62364 21 37 57.23 -36 20 31.2 18.4 VrEQ017E12
K12P28Q QC2012 08 15.63778 21 37 56.06 -36 21 04.1 18.6 VrEQ017E12
K12P28Q QC2012 08 15.65186 21 37 54.93 -36 21 36.7 18.8 VrEQ017E12
K12P28Q QC2012 08 15.75354 21 37 46.84 -36 25 31.0 18.8 VrEQ017E12
K12P28Q QC2012 08 15.75636 21 37 46.62 -36 25 37.2 18.9 VrEQ017E12
K12P28Q KC2012 08 16.01763 21 37 27.97 -36 36 02.7 19.0 VuEQ017954
K12P28Q KC2012 08 16.02691 21 37 27.20 -36 36 24.6 19.1 VuEQ017954
K12P28Q KC2012 08 16.03618 21 37 26.49 -36 36 46.3 18.8 VuEQ017954
K12P28Q C2012 08 16.36424 21 37 02.18 -36 49 14.3 18.6 RoEQ017474
K12P28Q C2012 08 16.36494 21 37 02.13 -36 49 15.9 18.8 RoEQ017474
K12P28Q C2012 08 16.36565 21 37 02.07 -36 49 17.5 18.6 RoEQ017474
K12P28Q C2012 08 16.36634 21 37 02.01 -36 49 19.4 18.6 RoEQ017474
K12P28Q C2012 08 16.36705 21 37 01.96 -36 49 21.0 18.7 RoEQ017474
K12P28Q C2012 08 16.36775 21 37 01.89 -36 49 22.6 18.6 RoEQ017474
K12P28Q C2012 08 16.36846 21 37 01.85 -36 49 24.3 18.7 RoEQ017474
K12P28Q QC2012 08 16.44166 21 36 56.34 -36 52 19.0 18.8 VrEQ017E12
K12P28Q QC2012 08 16.44540 21 36 56.03 -36 52 27.8 18.9 VrEQ017E12
K12P28Q C2012 08 16.50603 21 36 51.02 -36 54 50.6 18.4 VoEQ017E23
K12P28Q C2012 08 16.51083 21 36 50.64 -36 55 01.9 18.7 VoEQ017E23
K12P28Q C2012 08 16.51639 21 36 50.18 -36 55 14.7 18.8 VoEQ017E23
K12P28Q QC2012 08 16.60585 21 36 42.76 -36 58 45.4 18.9 VrEQ017E12
K12P28Q KC2012 08 16.78998 21 36 29.62 -37 05 54.5 18.5 RuEQ017194
K12P28Q KC2012 08 16.79249 21 36 29.41 -37 06 00.4 18.6 RuEQ017194
K12P28Q KC2012 08 16.79503 21 36 29.19 -37 06 06.4 18.7 RuEQ017194
K12P28Q QC2012 08 16.81539 21 36 25.74 -37 06 48.3 18.9 VrEQ017E12
K12P28Q C2012 08 17.32216 21 35 48.01 -37 26 32.6 18.8 RoEQ017474
K12P28Q C2012 08 17.32297 21 35 47.94 -37 26 34.7 18.7 RoEQ017474
K12P28Q C2012 08 17.32367 21 35 47.89 -37 26 36.1 19.0 RoEQ017474
K12P28Q C2012 08 17.32494 21 35 47.78 -37 26 39.4 18.8 RoEQ017474
K12P28Q QC2012 08 17.41960 21 35 40.40 -37 30 24.9 19.2 VrEQ017E12
K12P28Q C2012 08 17.62128 21 35 23.04 -37 38 15.4 19.3 RoEQ017474
K12P28Q C2012 08 17.62337 21 35 22.86 -37 38 20.3 19.2 RoEQ017474
K12P28Q C2012 08 17.62545 21 35 22.68 -37 38 25.2 19.4 RoEQ017474
K12P28Q QC2012 08 17.69703 21 35 16.85 -37 41 15.3 18.8 VrEQ017E12
K12P28Q QC2012 08 17.69950 21 35 16.65 -37 41 21.0 18.8 VrEQ017E12
K12P28Q QC2012 08 17.77206 21 35 10.61 -37 44 08.6 19.0 VrEQ017E12
K12P28Q KC2012 08 17.78473 21 35 11.50 -37 44 40.9 18.6 RuEQ017194
K12P28Q KC2012 08 17.78810 21 35 11.26 -37 44 48.8 18.7 RuEQ017194
K12P28Q KC2012 08 17.79148 21 35 10.98 -37 44 56.9 18.3 RuEQ017194
K12P28Q KC2012 08 17.79486 21 35 10.69 -37 45 04.9 18.6 RuEQ017194
K12P28Q C2012 08 18.54138 21 34 09.92 -38 14 10.5 18.6 VoEQ017E23
K12P28Q C2012 08 18.54942 21 34 09.21 -38 14 29.8 18.8 VoEQ017E23
Observer details:
194 Tivoli. Observers G. Lehmann, A. Knoefel. 0.4-m f/8 reflector + CCD.
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore,
P. M. Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
954 Teide Observatory. Observer N. D. Diaz. 0.26-m f/11.6 reflector + CCD.
E12 Siding Spring Survey. Observer R. H. McNaught. 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. 0.5-m Uppsala Schmidt + CCD.
E23 Arcadia. Observer A. Hidas. 0.35-m Schmidt-Cassegrain + CCD.
Orbital elements:
2012 PQ28 Earth MOID = 0.1970 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5 MPC
M 341.20911 (2000.0) P Q
n 0.29798012 Peri. 294.68850 +0.53668734 -0.78174649
a 2.2199568 Node 119.08605 +0.84376015 +0.49456003
e 0.5444618 Incl. 21.30774 +0.00595874 +0.37984577
P 3.31 H 18.2 G 0.15 U 7
Residuals in seconds of arc
120815 E12 0.2+ 0.0 120816 474 0.0 0.3+ 120817 474 0.1- 0.1+
120815 E12 0.1- 0.1- 120816 E12 0.1+ 0.1- 120817 E12 0.1+ 0.1-
120815 E12 0.0 0.1- 120816 E12 0.0 0.0 120817 474 0.1- 0.3+
120815 E12 0.0 0.1- 120816 E23 0.1- 0.2+ 120817 474 0.1- 0.2+
120815 E12 0.0 0.1+ 120816 E23 0.0 0.2+ 120817 474 0.2- 0.1+
120816 954 0.4- 0.2- 120816 E23 0.0 0.5+ 120817 E12 0.0 0.0
120816 954 0.4- 0.4- 120816 E12 0.2- 0.1- 120817 E12 0.1+ 0.0
120816 954 0.2+ 0.4- 120816 194 0.0 0.3- 120817 E12 0.0 0.7-
120816 474 0.1- 0.3+ 120816 194 0.1- 0.2- 120817 194 0.3- 0.2-
120816 474 0.0 0.4+ 120816 194 0.3- 0.2- 120817 194 0.2+ 0.1-
120816 474 0.1- 0.5+ 120816 E12 0.4+ 0.3+ 120817 194 0.2+ 0.1-
120816 474 0.1- 0.2+ 120817 474 0.1- 0.3+ 120817 194 0.1+ 0.1-
120816 474 0.1- 0.3+ 120817 474 0.1- 0.1+ 120818 E23 0.0 0.9+
120816 474 0.2- 0.4+ 120817 474 0.0 0.4+ 120818 E23 0.0 0.4+
Ephemeris:
2012 PQ28 a,e,i = 2.22, 0.54, 21 q = 1.0113
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 07 19 21 56 11.4 -21 12 24 0.8431 1.8031 151.6 15.5 20.0
...
2012 08 03 21 50 18.1 -28 32 40 0.6966 1.6929 162.9 10.2 19.2
...
2012 08 11 21 43 16.8 -33 22 35 0.6406 1.6333 161.4 11.4 19.0
...
2012 08 17 21 36 12.5 -37 14 04 0.6090 1.5885 156.1 15.0 19.0
2012 08 18 21 34 53.5 -37 53 03 0.6046 1.5810 155.0 15.7 19.0
2012 08 19 21 33 32.3 -38 32 00 0.6005 1.5735 153.8 16.5 19.0
...
2012 08 25 21 24 47.3 -42 22 41 0.5804 1.5285 146.4 21.4 19.0
...
2012 09 02 21 12 07.2 -47 09 44 0.5649 1.4688 136.0 28.5 19.1
...
2012 09 17 20 50 45.5 -54 18 31 0.5596 1.3586 117.7 40.9 19.2
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-Q17
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