• MPC Preparation (Info)

  • MPEC 2012-T84 : 2001 QJ142

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.


    Read MPEC 2012-T83 Read MPEC 2012-T85


    M.P.E.C. 2012-T84                                Issued 2012 Oct. 15, 16:09 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
    
                                      2001 QJ142
    
                               Revision to MPEC 2001-Q54
    
    Additional Observations:
         K01QE2J 2C2012 02 27.62057815 56 02.164-24 12 02.32         22.7 RtET084568
         K01QE2J 2C2012 02 27.62918915 56 05.054-24 12 04.37         22.6 RtET084568
         K01QE2J 2C2012 02 28.63685316 02 02.000-24 15 14.86         22.5 RtET084568
         K01QE2J 2C2012 02 28.64025716 02 03.153-24 15 15.46         22.7 RtET084568
    
    Observer details:
    568 Mauna Kea.  Observers M. Micheli, G. T. Elliott, D. J. Tholen.  Measurer
        D. J. Tholen.  2.24-m University of Hawaii reflector.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    120227 568 1.06+ 0.08+    120228 568 1.05+ 0.09+    MPO 18395   -0.56 day
    
    Orbital elements:
    2001 QJ142                                               Earth MOID = 0.0104 AU
    Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
    M 125.23896              (2000.0)            P               Q
    n   0.90081849     Peri.   63.92582     -0.36857003     +0.92959048
    a   1.0618044      Node   184.45303     -0.87106869     -0.34693918
    e   0.0860964      Incl.    3.10375     -0.32464667     -0.12447790
    P   1.09           H   23.7           G   0.15           U   2
    Residuals in seconds of arc
    010823 704  0.6-  0.5-    010830 118  0.1+  0.2+    010916 704  0.9-  0.2-
    010823 704  0.6+  0.4+    010830 118  0.2+  0.2+    010916 704  0.2+  0.5+
    010823 704  0.2-  0.4-    010901 649  0.5-  0.2-    010917 402  0.0   0.0
    010823 704  0.4-  0.0     010901 649  0.3+  0.4-    010917 402  0.3-  0.2-
    010823 704  0.0   0.2-    010901 649  0.1-  0.3-    010917 402  0.2+  0.0
    010825 704  1.2+  0.1-    010907 649  0.0   0.2-    010918 684 (0.5+  1.7+)
    010825 704  1.1+  0.2+    010907 649  0.7-  0.3+    010918 684  0.2+  0.5-
    010825 704  1.0+  0.0     010907 649  0.3+  0.9-    010918 684  0.2+  0.4-
    010825 704  1.0+  0.2+    010907 649  0.1-  0.0     010918 684  0.2+  0.2-
    010826 557  0.1-  0.4+    010907 649  0.9+  0.7-    010922 360  0.3+  0.1+
    010826 557  0.2-  0.2+    010908 658  0.1+  0.2-    010922 360  0.5+  0.0
    010826 557  0.2-  1.0-    010908 658  0.4+  0.4+    010922 360  0.7+  0.2+
    010826 046  0.1+  0.0     010908 658  0.0   0.1-    010923 704  0.5+  0.2+
    010826 046  0.4-  0.4-    010910 704  0.7-  1.2+    010923 704  0.1+  0.3-
    010826 046  0.3-  0.6+    010910 704  0.9-  1.3+    010923 704  0.4-  1.2-
    010826 704 (1.7+  2.1-)   010910 704  1.3-  0.8-    010923 704  0.3+  0.2-
    010826 704  0.5-  0.5-    010910 704  0.7-  0.8+    010923 704  0.6+  0.8-
    010826 704  0.2-  0.2-    010910 704  0.0   0.8+    010924 704  0.4-  0.2-
    010826 704  0.1+  0.1+    010910 658  0.5-  0.2-    010924 704  0.4-  0.4-
    010826 658  0.1-  0.2+    010910 658  0.5-  0.1-    010924 704  0.2+  0.2-
    010826 658  0.7-  0.2-    010910 658  0.5-  0.2-    010924 704  0.5-  0.5-
    010826 658  0.0   0.6+    010912 587 (1.6+  0.2-)   120227 568  0.0   0.0
    010827 658  0.9+  0.1+    010912 587  0.0   0.8+    120227 568  0.0   0.0
    010827 658  0.2+  0.4-    010912 587  0.6-  0.7+    120228 568  0.0   0.0
    010827 658  0.3-  0.0     010916 704  0.0   0.7+    120228 568  0.0   0.0
    010830 118  0.8+  0.1-    010916 704  0.5-  0.4+
    010830 118  0.7+  0.9+    010916 704  0.3+  0.6+
    
    Ephemeris:
    2001 QJ142               a,e,i = 1.06, 0.09, 3                   q = 0.9704
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2012 09 15    04 47 12.3 +21 32 41   0.3171  1.1021    99.3    64.2    23.7
    ...
    2012 09 30    05 17 11.1 +19 34 03   0.2858  1.1194   107.1    58.7    23.3
    ...
    2012 10 08    05 29 21.2 +18 05 49   0.2673  1.1274   112.2    55.2    23.1
    ...
    2012 10 14    05 36 11.9 +16 48 24   0.2528  1.1328   116.4    52.1    22.9
    2012 10 15    05 37 07.2 +16 34 34   0.2504  1.1336   117.2    51.5    22.9
    2012 10 16    05 37 58.4 +16 20 29   0.2480  1.1345   118.0    50.9    22.8
    ...
    2012 10 22    05 41 35.9 +14 50 43   0.2336  1.1391   122.9    47.2    22.6
    ...
    2012 10 30    05 42 03.7 +12 37 52   0.2153  1.1442   130.4    41.4    22.3
    ...
    2012 11 14    05 27 01.8 +08 01 15   0.1872  1.1508   147.0    27.9    21.6
    
    A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-T84
    

    Read MPEC 2012-T83 Read MPEC 2012-T85


    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)