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    • MPEC 2012-Q74 : 2012 QJ45

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    M.P.E.C. 2012-Q74                                Issued 2012 Aug. 29, 14:56 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 QJ45

Observations:
     K12Q45J* C2012 08 26.36331 23 44 13.56 -21 28 47.1          20.6 VrEQ074703
     K12Q45J  C2012 08 26.37084 23 44 14.13 -21 29 02.6          19.3 VrEQ074703
     K12Q45J  C2012 08 26.37836 23 44 14.64 -21 29 18.9          19.5 VrEQ074703
     K12Q45J  C2012 08 26.38596 23 44 15.32 -21 29 35.0          19.7 VrEQ074703
     K12Q45J |C2012 08 27.22671 23 45 30.90 -21 59 26.8          20.0 VuEQ074807
     K12Q45J |C2012 08 27.23026 23 45 31.20 -21 59 34.9          19.6 VuEQ074807
     K12Q45J |C2012 08 27.23384 23 45 31.48 -21 59 42.8          18.3 VuEQ074807
     K12Q45J |C2012 08 27.23743 23 45 31.74 -21 59 50.6          18.9 VuEQ074807
     K12Q45J |C2012 08 27.24101 23 45 32.06 -21 59 58.3          20.1 VuEQ074807
     K12Q45J KC2012 08 27.38122 23 45 43.77 -22 05 32.4          19.5 RuEQ074H36
     K12Q45J KC2012 08 27.38520 23 45 44.14 -22 05 41.5          19.5 RuEQ074H36
     K12Q45J KC2012 08 27.39277 23 45 44.80 -22 05 56.1          19.0 RuEQ074H36
     K12Q45J QC2012 08 27.51333 23 45 57.57 -22 09 49.2                rEQ074E12
     K12Q45J QC2012 08 27.51705 23 45 57.86 -22 09 56.4                rEQ074E12
     K12Q45J |C2012 08 28.20164 23 46 58.54 -22 35 00.8          19.8 VuEQ074807
     K12Q45J |C2012 08 28.20513 23 46 58.82 -22 35 08.5          20.0 VuEQ074807
     K12Q45J |C2012 08 28.20864 23 46 59.10 -22 35 16.3          20.1 VuEQ074807
     K12Q45J |C2012 08 28.21214 23 46 59.36 -22 35 24.1          19.7 VuEQ074807
     K12Q45J |C2012 08 28.21564 23 46 59.62 -22 35 31.8          19.5 VuEQ074807
     K12Q45J QC2012 08 28.69296 23 47 41.60 -22 53 05.0          19.5 VrEQ074E12
     K12Q45J HC2012 08 29.26245 23 48 33.77 -23 14 39.2                uEQ074H21
     K12Q45J KC2012 08 29.27021 23 48 34.38 -23 14 56.4          20.5 VuEQ074H21
     K12Q45J KC2012 08 29.27795 23 48 35.17 -23 15 13.5                uEQ074H21

Observer details:
703 Catalina Sky Survey.  Observer J. A. Johnson.  Measurers A. Boattini,
    E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
    S. M. Larson, R. H. McNaught.  0.68-m Schmidt + CCD.
807 Cerro Tololo.  Observers R. Holmes, T. Linder.  0.41-m f/11
    Ritchey-Chretien + CCD.
E12 Siding Spring Survey.  Observer R. H. McNaught.  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.  0.5-m Uppsala Schmidt + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers L. Buzzi, S. Foglia, T. Vorobjov.  0.61-m f/4.0 astrograph + CCD.
H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.

Orbital elements:
2012 QJ45                                                Earth MOID = 0.2519 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
M 349.64780              (2000.0)            P               Q
n   0.40360476     Peri.  255.16907     +0.87741956     -0.46159255
a   1.8134205      Node   132.12929     +0.47921157     +0.83077467
e   0.3501478      Incl.   10.14582     +0.02216275     +0.31103982
P   2.44           H   20.8           G   0.15           U   8
Residuals in seconds of arc
120826 703  0.4+  0.7-    120827 807  0.4+  0.1+    120828 807  0.1-  0.0
120826 703  0.1+  0.0     120827 H36  1.1-  0.0     120828 807  0.4-  0.0
120826 703  1.0-  0.1-    120827 H36  0.4-  0.5-    120828 807  0.6-  0.0
120826 703  0.2+  0.1+    120827 H36  0.3+  1.2+    120828 E12  0.3+  0.3-
120827 807  0.2-  0.4+    120827 E12  0.3+  0.5-    120829 H21  0.9-  0.0
120827 807  0.2+  0.1+    120827 E12  0.1+  0.5+    120829 H21  1.1-  0.2+
120827 807  0.1+  0.0     120828 807  0.3-  0.0     120829 H21  1.3+  0.4+
120827 807  0.1-  0.0     120828 807  0.2-  0.0

Ephemeris:
2012 QJ45                a,e,i = 1.81, 0.35, 10                  q = 1.1785
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2012 07 30    23 04 13.5 -09 35 02   0.4620  1.4134   143.5    25.3    21.0
...
2012 08 14    23 26 07.5 -14 53 46   0.3652  1.3491   153.2    19.8    20.3
...
2012 08 22    23 37 47.3 -18 57 12   0.3264  1.3173   156.5    17.8    19.9
...
2012 08 28    23 46 39.8 -22 27 40   0.3034  1.2949   157.1    17.7    19.7
2012 08 29    23 48 09.7 -23 04 28   0.3000  1.2913   156.9    17.8    19.7
2012 08 30    23 49 40.0 -23 41 39   0.2968  1.2877   156.8    18.0    19.6
...
2012 09 05    23 58 50.1 -27 29 40   0.2807  1.2673   154.5    20.0    19.6
...
2012 09 13    00 11 26.4 -32 29 37   0.2665  1.2428   149.3    24.4    19.5
...
2012 09 28    00 36 26.7 -39 53 48   0.2586  1.2063   137.9    33.9    19.7

A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-Q74

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