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  • MPEC 2012-H69 : 2004 RQ252

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    M.P.E.C. 2012-H69                                Issued 2012 Apr. 25, 16:36 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
    
                                      2004 RQ252
    
                               Revision to MPEC 2004-S05
    
    Additional Observations:
         K04RP2Q QC2012 04 24.70100 14 30 53.86 -34 52 30.0          18.1 VrEH069E12
         K04RP2Q QC2012 04 24.71141 14 30 47.48 -34 52 11.2          17.9 VrEH069E12
         K04RP2Q QC2012 04 24.72183 14 30 41.11 -34 51 50.8                rEH069E12
         K04RP2Q QC2012 04 24.73222 14 30 34.74 -34 51 30.5          18.2 VrEH069E12
         K04RP2Q QC2012 04 24.78961 14 30 00.60 -34 49 39.4          18.1 VrEH069E12
         K04RP2Q QC2012 04 25.41251 14 24 37.03 -34 32 38.5          18.0 VrEH069E12
         K04RP2Q QC2012 04 25.52104 14 23 38.06 -34 30 06.2          18.0 VrEH069E12
         K04RP2Q QC2012 04 25.52369 14 23 36.60 -34 30 02.1          18.0 VrEH069E12
         K04RP2Q  C2012 04 25.53611 14 23 29.36 -34 29 39.0                oEH069E23
         K04RP2Q  C2012 04 25.54307 14 23 25.66 -34 29 28.4                oEH069E23
         K04RP2Q  C2012 04 25.54770 14 23 23.05 -34 29 21.4                oEH069E23
         K04RP2Q  C2012 04 25.55313 14 23 20.20 -34 29 13.1          17.8 VoEH069E23
         K04RP2Q  C2012 04 25.55882 14 23 16.99 -34 29 04.1          18.2 VoEH069E23
         K04RP2Q  C2012 04 25.56699 14 23 12.58 -34 28 51.3          18.7 VoEH069E23
         K04RP2Q QC2012 04 25.63295 14 22 36.82 -34 27 07.3          18.3 VrEH069E12
         K04RP2Q QC2012 04 25.63693 14 22 34.65 -34 27 00.4          18.3 VrEH069E12
    
    Observer details:
    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.
    E23 Arcadia.  Observer A. Hidas.  0.35-m Schmidt-Cassegrain + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    120424 E12 6.69+ 2.14-    120425 E12 6.28+ 2.17-    MPO 70453   -0.67 day
    
    Orbital elements:
    2004 RQ252                                               Earth MOID = 0.0000 AU
    Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
    M  27.44369              (2000.0)            P               Q
    n   0.82531927     Peri.   83.00539     -0.31285665     -0.94803161
    a   1.1256103      Node    25.46108     +0.80952918     -0.29806058
    e   0.3882804      Incl.    7.74537     +0.49677281     -0.11133713
    P   1.19           H   22.3           G   0.15           U   3
    Residuals in seconds of arc
    040915 E12  0.2+  0.7-    040917 474  0.3+  0.5-    041002 E17 (7.6-  2.1-)
    040915 E12  0.7+  0.6-    040918 E12  0.8-  0.2-    041002 E17 (9.1-  2.2-)
    040915 E12  0.0   0.4+    040918 E12  0.9+  0.1+    041002 E17 (6.4-  2.9-)
    040915 E12  0.2+  0.9+    040918 E12  0.2+  0.8-    041003 428  0.7+  0.3+
    040916 649  0.9+  0.6+    040918 E12  0.3+  0.1-    041003 428  0.4+  0.1+
    040916 649  0.8-  0.1-    040919 474  0.5-  0.0     041003 428  0.5-  0.2-
    040916 649  0.2-  0.3-    040919 474  0.6-  0.7-    041003 428  0.3+  0.0
    040916 G90  0.2-  0.3-    040919 474  0.3-  0.1-    041007 E12  0.6+  0.4-
    040916 G90 (2.5-  1.8+)   040920 568  0.6+  0.9+    041007 E12  0.7+  0.2-
    040916 G90  0.2-  0.0     040920 568  0.1-  0.2+    041008 428  0.5-  0.6+
    040916 673  0.2-  0.9+    040920 F65  0.6-  0.1-    041008 428  0.9-  0.7+
    040916 673  0.2-  0.0     040920 E14  0.0   0.3-    041008 428  0.2-  0.2-
    040916 673  0.8-  1.0-    040920 F65  0.9-  0.2+    041008 E12  0.7+  0.6-
    040916 673  0.9+  1.2+    040920 F65  0.4+  0.5-    120424 E12  0.0   0.2+
    040916 854  0.2-  0.4-    040920 E14  0.2-  0.2-    120424 E12  0.1+  0.5-
    040916 854  0.4-  0.1-    040920 E14  0.4-  0.1-    120424 E12  0.0   0.2+
    040916 854  0.8+  0.3-    040920 474  0.6-  0.3-    120424 E12  0.7-  0.7+
    040916 E12  0.4+  0.6+    040920 474  0.2+  0.2+    120424 E12  0.0   0.0
    040916 E12  0.7-  0.7-    040920 474  0.1+  0.2+    120425 E12  0.1+  0.1-
    040916 E12  0.5-  0.0     040920 474  0.0   0.2+    120425 E12  0.2+  0.4-
    040916 E12  0.8+  1.0+    040921 428  0.4+  0.8+    120425 E12  0.2+  0.2-
    040916 E12 (1.9-  0.3+)   040921 428  0.1-  0.2+    120425 E23  1.4-  0.6+
    040916 E12  0.3-  0.5+    040921 428  0.3+  0.3+    120425 E23  0.0   0.5+
    040916 E12  0.6+  0.1-    040925 413  0.1-  0.2-    120425 E23  0.8-  0.3+
    040916 E12  0.9-  0.4-    040925 413  0.0   0.3-    120425 E23  0.7+  0.1+
    040916 E12  0.6-  0.3-    040926 413  0.1-  0.1-    120425 E23  0.4-  0.2+
    040916 E12  0.4-  0.3+    040926 413  0.1-  0.3-    120425 E23  0.4+  0.1+
    040916 E12  0.3+  0.7-    041002 E14  0.4-  0.4-    120425 E12  0.2+  0.3-
    040916 E12  0.1-  0.4+    041002 E14  0.1+  0.1-    120425 E12  0.1+  0.2-
    040917 474  0.6-  0.5-    041002 E14  0.1+  0.1-
    040917 474  0.1+  1.1-    041002 E14  0.0   0.1-
    
    Ephemeris:
    2004 RQ252               a,e,i = 1.13, 0.39, 8                   q = 0.6886
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2012 03 26    23 45 37.0 +18 56 02   0.1257  0.8795    18.8   158.6    28.0
    ...
    2012 04 10    21 25 27.1 -04 12 52   0.04042 0.9814    58.6   119.4    20.1
    ...
    2012 04 18    16 33 16.6 -36 12 58   0.04421 1.0355   134.3    43.9    17.3
    ...
    2012 04 24    14 38 06.9 -35 12 01   0.07525 1.0753   156.6    21.8    17.9
    2012 04 25    14 28 10.5 -34 44 20   0.08117 1.0818   158.1    20.3    18.0
    2012 04 26    14 19 41.1 -34 17 12   0.08722 1.0883   159.2    19.2    18.2
    ...
    2012 05 02    13 47 49.4 -31 58 46   0.1256  1.1266   159.9    17.9    19.0
    ...
    2012 05 10    13 29 58.8 -29 52 28   0.1811  1.1757   154.4    21.8    20.0
    ...
    2012 05 25    13 23 39.1 -27 35 40   0.2972  1.2607   142.1    29.6    21.5
    
    A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-H69
    

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