• Processing (Info)

    • MPEC 2013-H12 : 2012 OP

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    M.P.E.C. 2013-H12                                Issued 2013 Apr. 17, 15:08 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 OP

                           Revision to MPEC 2012-O12

Additional Observations:
     K12O00P 1C2013 03 20.78036 18 30 53.32 -11 53 19.1                 EH012Q62
     K12O00P 1C2013 03 20.78123 18 30 53.32 -11 53 18.3          18.9 V EH012Q62
     K12O00P |C2013 04 09.42929 18 22 39.12 -07 06 25.3                 EH012H06
     K12O00P |C2013 04 09.43187 18 22 39.03 -07 06 22.8                 EH012H06
     K12O00P |C2013 04 09.43445 18 22 38.93 -07 06 20.4          18.8 V EH012H06
     K12O00P |C2013 04 11.44317 18 21 18.80 -06 34 37.9                cEH012H06
     K12O00P |C2013 04 11.44545 18 21 18.72 -06 34 36.4                cEH012H06
     K12O00P |C2013 04 11.44773 18 21 18.63 -06 34 34.6          19.1 VcEH012H06
     K12O00P KC2013 04 15.11745 18 18 37.41 -05 35 35.7                tEH012204
     K12O00P KC2013 04 15.12630 18 18 37.02 -05 35 27.1          19.4 RtEH012204
     K12O00P KC2013 04 15.13563 18 18 36.54 -05 35 18.3                tEH012204

Observer details:
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector
    + CCD.
H06 iTelescope Observatory, Mayhill.  Observer H. Sato.  0.43-m f/6.8
    astrograph + CCD + f/4.5 focal reducer, 0.51-m f/6.8 astrograph + CCD
    + f/4.5 focal reducer.
Q62 iTelescope Observatory, Siding Spring.  Observer H. Sato.  0.51-m f/6.8
    astrograph + CCD + f/4.5 focal reducer.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
130320 Q62  1.8-  3.4-    130415 204  2.4-  5.3-    MPO242007   -0.018 day

Orbital elements:
2012 OP
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M   0.00376              (2000.0)            P               Q
n   0.00002798     Peri.  351.42881     +0.01715539     -0.42162457
a1074.5102530      Node   267.37067     -0.85511005     -0.47609572
e   0.9966431      Incl.  114.82919     -0.51816262     +0.77172896
P 35220            H   14.0           G   0.15
Residuals in seconds of arc
120716 E12  0.7-  0.8+    120717 807  0.1+  0.1-    120817 474  0.1-  0.2+
120716 E12  0.0   0.5+    120717 807  0.2+  0.5-    120817 474  0.4-  0.2+
120716 E12  0.3-  0.2-    120717 807  0.0   0.3-    120817 474  0.2-  0.5+
120716 E12  0.1-  0.0     120718 E12  0.4+  0.1-    120918 474  0.0   0.1-
120716 E12  0.1+  0.1+    120718 E12  0.5-  0.1+    120918 474  0.3-  0.0
120716 E12  0.1+  0.4-    120718 821  0.2+  0.0     120918 474  0.2+  0.3+
120716 E12  0.0   0.3-    120718 821  0.2+  0.0     130320 Q62  0.1-  0.2+
120716 807  0.3+  0.1-    120718 821  0.2+  0.0     130320 Q62  0.1+  0.3+
120716 807  0.1+  0.2+    120719 807  0.1+  0.1+    130409 H06  0.6+  0.2+
120716 807  0.3+  0.0     120719 807  0.0   0.1-    130409 H06  0.8+  0.2+
120716 807  0.2+  0.4-    120719 807  0.2+  0.0     130409 H06  0.8+  0.2+
120716 807  0.0   0.2-    120719 807  0.1+  0.0     130411 H06  0.5-  0.3+
120717 474  0.5+  0.4+    120719 807  0.1+  0.1+    130411 H06  0.3-  0.4-
120717 474  0.4+  0.8-    120719 E12  0.4+  0.1+    130411 H06  0.2-  0.8-
120717 474  1.2-  0.2-    120719 E12  0.2-  0.0     130415 204  0.5-  0.1+
120717 474  0.4-  0.5-    120809 E12  0.1+  0.2-    130415 204  0.1-  0.1+
120717 474  1.9+  0.4+    120810 E12  0.1-  0.1-    130415 204  0.6-  0.2-
120717 807  0.3+  0.1+    120817 474  0.3+  0.1-

Ephemeris:
2012 OP                  a,e,i = 1074.51, 1.00, 115              q = 3.6070
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2013 03 18    18 31 24.1 -12 30 31   3.7713  3.7253    79.8    15.2    20.6
...
2013 04 02    18 26 45.7 -08 59 56   3.5358  3.7612    95.2    15.3    20.5
...
2013 04 10    18 22 16.9 -06 57 27   3.4166  3.7820   103.7    14.9    20.4
...
2013 04 16    18 17 55.8 -05 21 12   3.3333  3.7985   110.2    14.4    20.3
2013 04 17    18 17 07.2 -05 04 49   3.3201  3.8013   111.3    14.2    20.3
2013 04 18    18 16 17.2 -04 48 22   3.3071  3.8041   112.4    14.1    20.3
...
2013 04 24    18 10 46.6 -03 07 53   3.2337  3.8215   118.8    13.3    20.2
...
2013 05 02    18 02 06.4 -00 50 30   3.1506  3.8456   127.3    12.0    20.1
...
2013 05 17    17 42 09.7 +03 28 05   3.0524  3.8938   141.4     9.3    20.0

A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-H12

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