MPEC 2012-H13 : 2012 HM
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M.P.E.C. 2012-H13 Issued 2012 Apr. 17, 14:42 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 HM
Observations:
K12H00M* C2012 04 16.29304 14 04 35.84 +29 59 47.6 18.5 cEH013704
K12H00M C2012 04 16.30418 14 04 34.43 +30 00 06.3 18.7 cEH013704
K12H00M C2012 04 16.31542 14 04 33.10 +30 00 25.7 18.6 cEH013704
K12H00M C2012 04 16.32650 14 04 31.68 +30 00 44.5 19.1 cEH013704
K12H00M C2012 04 16.33773 14 04 30.30 +30 01 01.2 18.8 cEH013704
K12H00M KC2012 04 17.29024014 03 43.15 +30 28 42.7 18.8 VrEH013H21
K12H00M KC2012 04 17.29553614 03 42.44 +30 28 51.9 18.8 VrEH013H21
K12H00M KC2012 04 17.30143014 03 41.67 +30 29 02.3 18.8 VrEH013H21
K12H00M C2012 04 17.43119 14 03 28.48 +30 33 07.2 18.0 RoEH013H01
K12H00M C2012 04 17.43888 14 03 27.54 +30 33 18.7 18.2 RoEH013H01
K12H00M C2012 04 17.44472 14 03 26.86 +30 33 27.4 18.2 RoEH013H01
K12H00M C2012 04 17.45498 14 03 25.69 +30 33 42.6 18.0 RoEH013H01
K12H00M C2012 04 17.53053 14 03 40.90 +30 36 18.9 18.8 VuEH013900
K12H00M C2012 04 17.54124 14 03 39.52 +30 36 43.2 18.3 VuEH013900
K12H00M C2012 04 17.55194 14 03 38.13 +30 37 08.0 18.5 VuEH013900
Observer details:
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, G. Spitz,
R. Brungard, J. Paige, P. Festler, T. McVey, A. Valdivia, C. Gall. 1.0-m
f/2.15 reflector + CCD.
900 Moriyama. Observer Y. Ikari. 0.26-m f/7.0 reflector + CCD.
H01 Magdalena Ridge Observatory, Socorro. Observer W. H. Ryan. 2.4-m f/8.9
reflector + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers L. Buzzi, H. Devore, S. Foglia, T. Vorobjov. 0.61-m f/4.0
astrograph + CCD.
Orbital elements:
2012 HM Earth MOID = 0.0031 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 286.90546 (2000.0) P Q
n 0.78446645 Peri. 233.07610 +0.03617090 +0.99639820
a 1.1643578 Node 39.21083 -0.87397380 +0.06875736
e 0.1953500 Incl. 6.96834 -0.48462508 -0.04962911
P 1.26 H 23.7 G 0.15 U 8
Residuals in seconds of arc
120416 704 0.4+ 0.0 120417 H21 0.2- 0.1- 120417 H01 0.1+ 0.0
120416 704 0.2- 0.4- 120417 H21 0.3- 0.2- 120417 H01 0.0 0.1+
120416 704 0.5+ 0.2+ 120417 H21 0.2- 0.1- 120417 900 0.2+ 0.2-
120416 704 0.3- 0.8+ 120417 H01 0.3+ 0.1+ 120417 900 0.1- 0.3-
120416 704 0.2- 0.6- 120417 H01 0.0 0.0 120417 900 0.0 0.5+
Ephemeris:
2012 HM a,e,i = 1.16, 0.20, 7 q = 0.9369
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 03 18 13 59 56.1 +22 10 25 0.1633 1.1288 142.2 32.7 21.4
...
2012 04 02 14 06 44.2 +25 40 40 0.09961 1.0814 143.7 33.2 20.3
...
2012 04 10 14 07 01.0 +27 45 36 0.06851 1.0568 142.2 35.6 19.5
...
2012 04 16 14 04 46.6 +29 52 02 0.04596 1.0389 139.5 38.9 18.6
2012 04 17 14 04 00.9 +30 20 22 0.04226 1.0360 138.8 39.7 18.5
2012 04 18 14 03 04.3 +30 52 33 0.03857 1.0332 138.1 40.5 18.3
...
2012 04 24 13 46 48.2 +37 56 26 0.01670 1.0164 129.0 50.3 16.7
...
2012 05 02 02 36 36.7 -13 18 36 0.01370 0.9958 28.7 150.9 23.0
...
2012 05 17 02 17 01.6 -23 39 39 0.06925 0.9655 47.1 129.9 23.5
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-H13
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