• Processing (Info)

    • MPEC 2012-E55 : 2012 EK5

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    M.P.E.C. 2012-E55                                Issued 2012 Mar. 14, 18:21 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 EK5

Observations:
     K12E05K* C2012 03 13.44252 12 47 45.99 +23 25 03.7          20.9 VrEE055G96
     K12E05K  C2012 03 13.45257 12 47 48.91 +23 24 59.9          21.5 VrEE055G96
     K12E05K  C2012 03 13.46266 12 47 51.75 +23 24 56.6          21.6 VrEE055G96
     K12E05K  C2012 03 13.47271 12 47 54.78 +23 24 52.2          22.0 VrEE055G96
     K12E05K mC2012 03 13.49128 12 48 00.31 +23 24 46.4                oEE055291
     K12E05K mC2012 03 13.49314 12 48 00.82 +23 24 45.7                oEE055291
     K12E05K  C2012 03 13.49351 12 48 00.73 +23 24 39.7          21.0 RoEE055H01
     K12E05K mC2012 03 13.49500 12 48 01.38 +23 24 44.8                oEE055291
     K12E05K  C2012 03 13.50052 12 48 02.80 +23 24 36.8          20.7 RoEE055H01
     K12E05K  C2012 03 13.50856 12 48 05.25 +23 24 33.3          21.3 RoEE055H01
     K12E05K  C2012 03 13.51477 12 48 07.15 +23 24 30.5          21.2 RoEE055H01
     K12E05K  C2012 03 14.26036 12 52 43.84 +23 20 50.2          20.6 RoEE055H01
     K12E05K  C2012 03 14.26707 12 52 46.19 +23 20 48.5          20.6 RoEE055H01
     K12E05K  C2012 03 14.27371 12 52 48.55 +23 20 46.8          20.6 RoEE055H01
     K12E05K  C2012 03 14.28177 12 52 51.36 +23 20 44.8          20.4 RoEE055H01
     K12E05K KC2012 03 14.31383212 53 00.18 +23 20 25.1          21.4 VtEE055H21
     K12E05K KC2012 03 14.32177112 53 02.95 +23 20 21.9          21.6 VtEE055H21
     K12E05K KC2012 03 14.32989412 53 05.83 +23 20 18.6          21.4 VtEE055H21
     K12E05K KC2012 03 14.33783612 53 08.63 +23 20 14.7          21.3 VtEE055H21

Observer details:
291 LPL/Spacewatch II.  Observer R. S. McMillan.  1.8-m f/2.7 reflector + CCD.
G96 Mt. Lemmon Survey.  Observer R. A. Kowalski.  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.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Vorobjov, L. Buzzi, S. Foglia.  0.81-m f/4.0 astrograph + CCD.

Orbital elements:
2012 EK5                                                 Earth MOID = 0.0053 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
M 339.48148              (2000.0)            P               Q
n   0.40351737     Peri.  240.31363     -0.42557856     +0.90481823
a   1.8136823      Node     4.56413     -0.75951742     -0.34894302
e   0.5552568      Incl.    9.89161     -0.49195140     -0.24401383
P   2.44           H   25.6           G   0.15           U   8
Residuals in seconds of arc
120313 G96  0.1-  0.0     120313 291  0.1-  0.0     120314 H01  0.0   0.2+
120313 G96  0.3+  0.2-    120313 H01  0.3-  0.0     120314 H21  0.1+  0.1-
120313 G96  0.9-  0.2+    120313 H01  0.1-  0.0     120314 H21  0.2-  0.1-
120313 G96  0.4+  0.4-    120313 H01  0.1-  0.1-    120314 H21  0.1+  0.1+
120313 291  0.4+  0.0     120314 H01  0.1-  0.2+    120314 H21  0.0   0.4-
120313 291  0.2-  0.1+    120314 H01  0.2-  0.1+
120313 H01  0.3+  0.1-    120314 H01  0.2+  0.1+

Ephemeris:
2012 EK5                 a,e,i = 1.81, 0.56, 10                  q = 0.8066
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2012 02 13    12 00 21.1 +21 50 38   0.3725  1.3139   146.5    24.5    25.2
...
2012 02 28    12 15 02.7 +22 55 48   0.2149  1.1861   153.1    22.2    23.7
...
2012 03 07    12 26 46.2 +23 24 17   0.1386  1.1188   154.2    22.7    22.6
...
2012 03 13    12 45 31.6 +23 26 57   0.08405 1.0695   153.0    25.0    21.5
2012 03 14    12 51 01.2 +23 22 50   0.07516 1.0614   152.5    25.7    21.3
2012 03 15    12 57 53.9 +23 15 43   0.06634 1.0534   151.7    26.6    21.0
...
2012 03 21    15 46 33.5 +13 37 32   0.01859 1.0064   122.8    56.3    19.0
...
2012 03 29    23 01 14.2 -23 23 17   0.06226 0.9479    34.6   143.2    26.8
...
2012 04 13    23 47 32.1 -22 23 21   0.1995  0.8586    39.7   131.8    27.7

A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-E55

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