MPEC 2012-E11 : 2012 DH61
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M.P.E.C. 2012-E11 Issued 2012 Mar. 1, 23:27 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 DH61
Observations:
K12D61H* C2012 02 28.45361 09 18 38.097+71 14 47.75 20.4 gLEE011F51
K12D61H C2012 02 28.46073 09 18 37.203+71 14 55.79 20.9 gLEE011F51
K12D61H C2012 02 28.46797 09 18 36.331+71 15 03.85 20.0 rLEE011F51
K12D61H C2012 02 28.47464 09 18 35.478+71 15 11.04 20.2 rLEE011F51
K12D61H C2012 02 29.22566 09 17 14.10 +71 29 15.4 20.5 RoEE011H01
K12D61H C2012 02 29.23156 09 17 13.38 +71 29 21.8 20.1 RoEE011H01
K12D61H C2012 02 29.23844 09 17 12.52 +71 29 29.5 20.1 RoEE011H01
K12D61H C2012 02 29.24947 09 17 11.12 +71 29 41.8 19.9 RoEE011H01
K12D61H HC2012 02 29.45535 09 16 46.03 +71 33 20.2 oEE011291
K12D61H HC2012 02 29.45809 09 16 45.77 +71 33 23.4 oEE011291
K12D61H HC2012 02 29.46087 09 16 45.47 +71 33 25.9 oEE011291
K12D61H KC2012 02 29.86754 09 16 04.22 +71 40 48.5 uEE011J95
K12D61H KC2012 02 29.87393 09 16 03.52 +71 40 55.4 uEE011J95
K12D61H KC2012 02 29.88033 09 16 02.53 +71 41 02.8 20.0 RuEE011J95
K12D61H KC2012 02 29.89968 09 16 00.08 +71 41 25.4 19.8 RuEE011204
K12D61H KC2012 02 29.91522 09 15 58.21 +71 41 41.9 uEE011204
K12D61H KC2012 02 29.93041 09 15 56.30 +71 41 58.1 uEE011204
K12D61H KC2012 02 29.95106 09 15 53.82 +71 42 18.9 20.0 VuEE011595
K12D61H KC2012 02 29.96467 09 15 51.90 +71 42 34.0 20.1 VuEE011595
K12D61H KC2012 03 01.01783 09 15 45.50 +71 43 30.4 19.9 RcEE011A24
K12D61H KC2012 03 01.02507 09 15 44.72 +71 43 37.0 19.6 RuEE011C44
K12D61H KC2012 03 01.02572 09 15 44.78 +71 43 38.1 20.0 RcEE011A24
K12D61H KC2012 03 01.03037 09 15 44.16 +71 43 42.4 19.4 RuEE011C44
K12D61H KC2012 03 01.03361 09 15 43.79 +71 43 46.4 20.0 RcEE011A24
K12D61H KC2012 03 01.03663 09 15 43.38 +71 43 48.0 19.9 RuEE011C44
K12D61H C2012 03 01.13358 09 15 35.83 +71 45 34.1 20.0 RoEE011H01
K12D61H C2012 03 01.15207 09 15 33.55 +71 45 54.2 20.0 RoEE011H01
K12D61H C2012 03 01.16221 09 15 32.30 +71 46 05.5 20.1 RoEE011H01
K12D61H C2012 03 01.16631 09 15 31.82 +71 46 10.2 20.2 RoEE011H01
K12D61H KC2012 03 01.27444509 15 17.84 +71 48 02.5 19.7 RuEE011H36
K12D61H KC2012 03 01.28133509 15 17.00 +71 48 10.1 19.2 RuEE011H36
K12D61H HC2012 03 01.41931 09 15 00.84 +71 50 31.1 oEE011291
K12D61H HC2012 03 01.42243 09 15 00.47 +71 50 34.4 oEE011291
K12D61H HC2012 03 01.42556 09 15 00.10 +71 50 36.9 oEE011291
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.38-m f/6.8 reflector
+ CCD.
291 LPL/Spacewatch II. Observer T. H. Bressi. 1.8-m f/2.7 reflector + CCD.
595 Farra d'Isonzo. Observers G. Ierman, E. Pettarin. Measurer E. Pettarin.
0.40-m f/4.5 reflector + CCD.
A24 New Millennium Observatory, Mozzate. Observer E. Cozzi. 0.36-m f/11
Schmidt-Cassegrain + CCD.
C44 A. Volta Observatory, Lanzo d'Intelvi. Observer F. Tozzi. 0.40-m f/3.5
reflector + 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.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2012 DH61 Earth MOID = 0.1730 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 341.70785 (2000.0) P Q
n 0.30260436 Peri. 130.76013 -0.73765258 +0.54777917
a 2.1972827 Node 86.17590 -0.67431116 -0.62734974
e 0.5070248 Incl. 23.30367 +0.03425106 -0.55350726
P 3.26 H 19.0 G 0.15 U 8
Residuals in seconds of arc
120228 F51 0.1- 0.1- 120229 J95 0.4+ 0.3- 120301 C44 0.1+ 0.8-
120228 F51 0.1- 0.0 120229 J95 0.6- 0.1+ 120301 H01 0.1+ 0.0
120228 F51 0.1+ 0.1+ 120229 204 0.2+ 0.1+ 120301 H01 0.0 0.2-
120228 F51 0.0 0.1- 120229 204 0.4+ 0.1- 120301 H01 0.0 0.0
120229 H01 0.1- 0.1+ 120229 204 0.2+ 0.1- 120301 H01 0.1+ 0.3+
120229 H01 0.0 0.0 120229 595 1.3+ 1.0- 120301 H36 0.3- 0.6-
120229 H01 0.1+ 0.0 120229 595 0.0 0.2- 120301 H36 0.3- 0.0
120229 H01 0.0 0.2+ 120301 A24 0.5- 0.8+ 120301 291 0.1- 0.1+
120229 291 0.2- 0.0 120301 C44 0.1- 0.0 120301 291 0.1- 0.3+
120229 291 0.1+ 0.4+ 120301 A24 0.6+ 0.4+ 120301 291 0.2- 0.2-
120229 291 0.2+ 0.1+ 120301 C44 0.3+ 0.0
120229 J95 0.1+ 0.2- 120301 A24 0.4+ 0.6+
Ephemeris:
2012 DH61 a,e,i = 2.20, 0.51, 23 q = 1.0832
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 01 31 09 56 25.1 +56 46 59 0.6770 1.5606 139.0 24.5 20.3
...
2012 02 15 09 41 57.2 +65 37 01 0.6312 1.4596 127.4 32.5 20.2
...
2012 02 23 09 28 44.6 +69 17 06 0.6193 1.4071 120.3 37.4 20.2
...
2012 02 29 09 17 38.8 +71 24 55 0.6134 1.3687 115.1 40.9 20.2
2012 03 01 09 15 48.9 +71 43 05 0.6126 1.3624 114.3 41.5 20.2
2012 03 02 09 14 00.5 +72 00 23 0.6118 1.3561 113.4 42.1 20.2
...
2012 03 08 09 04 11.5 +73 26 39 0.6071 1.3193 108.7 45.4 20.3
...
2012 03 16 08 56 04.0 +74 39 50 0.6000 1.2724 103.0 49.6 20.3
...
2012 03 31 09 06 04.3 +75 14 18 0.5772 1.1941 94.7 56.5 20.2
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-E11
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