MPEC 2012-M34 : 2012 MR4
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M.P.E.C. 2012-M34 Issued 2012 June 22, 17:00 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 MR4
Observations:
K12M04R* C2012 06 18.37012 20 22 58.69 -09 52 23.5 22.0 VrEM034G96
K12M04R C2012 06 18.37535 20 22 58.29 -09 52 20.7 21.1 VrEM034G96
K12M04R C2012 06 18.38061 20 22 57.82 -09 52 17.4 21.3 VrEM034G96
K12M04R C2012 06 18.38580 20 22 57.36 -09 52 14.3 21.6 VrEM034G96
K12M04R C2012 06 18.41012 20 22 55.27 -09 51 59.3 21.4 VrEM034G96
K12M04R C2012 06 18.41289 20 22 54.94 -09 51 57.2 22.5 VrEM034G96
K12M04R C2012 06 18.41572 20 22 54.76 -09 51 56.5 22.4 VrEM034G96
K12M04R C2012 06 18.41851 20 22 54.48 -09 51 55.3 22.8 VrEM034G96
K12M04R KC2012 06 19.32905220 21 35.72 -09 42 39.3 21.3 VtEM034H21
K12M04R KC2012 06 19.33944920 21 34.75 -09 42 33.1 21.7 VtEM034H21
K12M04R KC2012 06 19.35001320 21 33.80 -09 42 26.3 21.8 VtEM034H21
K12M04R KC2012 06 19.36102820 21 32.84 -09 42 19.6 21.2 VtEM034H21
K12M04R KC2012 06 19.45296 20 21 24.66 -09 41 22.6 21.5 RoEM034291
K12M04R KC2012 06 19.45662 20 21 24.34 -09 41 20.4 21.4 RoEM034291
K12M04R C2012 06 20.29204 20 20 10.10 -09 32 49.7 20.6 RoEM034H01
K12M04R C2012 06 20.30047 20 20 09.33 -09 32 44.6 21.1 RoEM034H01
K12M04R C2012 06 20.30733 20 20 08.70 -09 32 40.3 20.6 RoEM034H01
K12M04R C2012 06 20.31495 20 20 08.00 -09 32 35.6 20.9 RoEM034H01
K12M04R C2012 06 20.34481 20 20 05.29 -09 32 17.5 rEM034G96
K12M04R C2012 06 20.35845 20 20 04.01 -09 32 09.3 rEM034G96
K12M04R C2012 06 20.36521 20 20 03.41 -09 32 04.4 21.4 VrEM034G96
K12M04R C2012 06 21.27708 20 18 39.97 -09 22 45.9 20.8 RoEM034H01
K12M04R C2012 06 21.28435 20 18 39.29 -09 22 41.5 20.6 RoEM034H01
K12M04R C2012 06 21.29116 20 18 38.65 -09 22 37.4 20.9 RoEM034H01
K12M04R C2012 06 21.29793 20 18 38.00 -09 22 33.2 21.0 RoEM034H01
K12M04R KC2012 06 21.35791 20 18 32.35 -09 21 56.3 20.7 RoEM034291
K12M04R KC2012 06 21.36159 20 18 32.01 -09 21 53.8 20.5 RoEM034291
K12M04R KC2012 06 21.36525 20 18 31.65 -09 21 51.7 21.2 RoEM034291
K12M04R KC2012 06 22.33843 20 17 00.02 -09 11 54.1 20.9 RoEM034291
K12M04R KC2012 06 22.34210 20 16 59.67 -09 11 52.0 oEM034291
Observer details:
291 LPL/Spacewatch II. Observer J. V. Scotti. 1.8-m f/2.7 reflector + CCD.
G96 Mt. Lemmon Survey. Observers A. D. Grauer, A. R. Gibbs. Measurers
A. Boattini, E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson, R. H. McNaught. 1.5-m 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 T. Vorobjov, S. Foglia, L. Buzzi. 0.81-m f/4.0 astrograph + CCD.
Orbital elements:
2012 MR4 Earth MOID = 0.4532 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 189.79890 (2000.0) P Q
n 0.49092553 Peri. 171.52789 -0.18839698 -0.62193049
a 1.5914475 Node 286.13902 +0.84831199 +0.28690576
e 0.6692361 Incl. 52.30295 +0.49484679 -0.72862030
P 2.01 H 17.8 G 0.15 U 8
Residuals in seconds of arc
120618 G96 0.6- 0.4+ 120619 H21 0.0 0.0 120620 G96 0.3+ 0.4+
120618 G96 0.3+ 0.0 120619 H21 0.4+ 0.0 120621 H01 0.2- 0.0
120618 G96 0.1+ 0.1+ 120619 291 0.1- 0.3+ 120621 H01 0.1- 0.1-
120618 G96 0.0 0.0 120619 291 0.0 0.2+ 120621 H01 0.1- 0.1-
120618 G96 0.5+ 0.2+ 120620 H01 0.1- 0.1- 120621 H01 0.2- 0.1-
120618 G96 0.8- 0.6+ 120620 H01 0.1- 0.2- 120621 291 0.1- 0.0
120618 G96 0.2+ 0.4- 120620 H01 0.1- 0.0 120621 291 0.0 0.2+
120618 G96 0.3- 0.9- 120620 H01 0.0 0.0 120621 291 0.2- 0.1+
120619 H21 0.6+ 0.2- 120620 G96 0.3+ 0.2- 120622 291 0.1+ 0.1+
120619 H21 0.0 0.3- 120620 G96 0.0 0.4- 120622 291 0.2+ 0.1-
Ephemeris:
2012 MR4 a,e,i = 1.59, 0.67, 52 q = 0.5264
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2012 05 23 20 45 58.9 -14 08 53 1.9830 2.5417 112.0 21.7 22.4
...
2012 06 07 20 36 21.5 -11 45 57 1.7458 2.4996 127.8 18.7 22.0
...
2012 06 15 20 27 31.5 -10 26 26 1.6339 2.4744 136.8 16.3 21.7
...
2012 06 21 20 19 05.4 -09 25 33 1.5593 2.4541 143.8 14.1 21.5
2012 06 22 20 17 32.1 -09 15 19 1.5477 2.4506 145.0 13.8 21.5
2012 06 23 20 15 56.3 -09 05 04 1.5365 2.4471 146.2 13.4 21.5
...
2012 06 29 20 05 30.4 -08 03 24 1.4749 2.4253 153.1 10.9 21.3
...
2012 07 07 19 49 35.7 -06 41 42 1.4105 2.3945 160.9 8.0 21.0
...
2012 07 22 19 16 04.7 -04 19 34 1.3505 2.3310 159.9 8.6 20.9
A. U. Tomatic (C) Copyright 2012 MPC M.P.E.C. 2012-M34
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