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  • MPEC 2017-N61 : 2004 UR1

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    M.P.E.C. 2017-N61                                Issued 2017 July  9, 11:04 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
        on behalf of Division F 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 UR1
    
                               Revision to MPEC 2004-U43
    
    Additional Observations:
         K04U01R  C2017 06 25.61213502 24 06.065+18 51 30.31         22.4 GUEN061T14
         K04U01R  C2017 06 25.61312102 24 06.340+18 51 31.61         22.6 GUEN061T14
         K04U01R  C2017 06 25.61411102 24 06.604+18 51 32.92         22.3 GUEN061T14
         K04U01R  C2017 06 27.59996602 33 09.731+19 32 43.43         23.3 GUEN061T14
         K04U01R  C2017 06 27.60096102 33 10.011+19 32 44.56         22.8 GUEN061T14
         K04U01R  C2017 06 27.60194402 33 10.265+19 32 45.75         23.0 GUEN061T14
    
    Observer details:
    T14 Mauna Kea-UH/Tholen NEO Follow-Up (CFHT).  Observers D. Woodworth,
        C. Wipper.  Measurer D. J. Tholen.  3.6-m Canada-France-Hawaii Telescope.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    170625 T14 0.46+ 0.03+    170627 T14 0.44+ 0.02+    MPO 74425   -1.2 day
    
    Orbital elements:
    2004 UR1                                            PHA, Earth MOID = 0.0193 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M  20.68461              (2000.0)            P               Q
    n   0.30716864     Peri.   73.37457     +0.81053758     +0.58181600
    a   2.1754618      Node   250.99881     -0.56080810     +0.73788195
    e   0.6158756      Incl.    4.07701     -0.16888784     +0.34208241
    P   3.21           H   20.6           G   0.15           U   1
    Residuals in seconds of arc
    041023 704  0.1-  0.2+    041024 151  0.6+  0.0     041106 670  0.1+  0.2+
    041023 704  0.1+  0.8+    041024 151  0.6-  0.0     041106 932  0.1+  0.3-
    041023 704  0.4+  0.6+    041024 151  0.2+  0.1+    041106 670  0.4+  0.2+
    041023 704  0.3+  0.7+    041024 151  0.1+  0.4+    041106 670  0.2-  0.1-
    041023 704  0.5+  0.8+    041024 J95  0.7-  0.1+    041106 H41  0.4+  0.4-
    041023 198  0.1-  0.0     041024 J95  0.1+  0.2-    041106 H41  0.3-  1.1+
    041023 198  0.3-  0.1-    041024 J95  0.1-  0.2-    041106 H41  0.2+  0.1-
    041023 198  0.4-  0.2-    041025 649  0.1-  0.0     041106 H41  0.1+  0.0
    041023 198  0.4-  0.3+    041025 649  0.2-  0.1+    041106 H41  0.7+  0.5+
    041023 198  0.1-  0.3+    041025 649  0.1-  0.0     041106 176  0.3-  0.4-
    041024 649  0.1+  0.2-    041025 704  0.3+  0.1+    041106 176  0.2-  0.4-
    041024 649  0.1-  0.2-    041025 704  0.2+  0.2-    041106 176  0.1-  0.3-
    041024 649  0.0   0.3-    041025 704  0.4+  0.0     041106 176  0.1+  0.3-
    041024 854  0.1-  0.3-    041025 704  0.2+  0.1+    041106 176  0.2+  0.3-
    041024 854  0.0   0.0     041025 850  0.6-  0.8+    041108 185  0.3+  0.4-
    041024 854  0.0   0.0     041025 734  0.3+  0.1+    041108 185  0.3+  0.3-
    041024 854  0.2-  0.2-    041025 734  0.1+  0.1-    041108 185  1.1+  1.1-
    041024 448  0.2-  0.3-    041025 734  0.3+  0.3-    041108 587  0.4-  0.2+
    041024 448  0.2-  0.2-    041025 734  0.1-  0.3-    041108 587  0.3-  0.0
    041024 448  0.1-  0.1-    041025 734  0.2+  0.1-    041108 587  1.1+  0.1-
    041024 734  0.1-  0.7-    041025 850  0.7-  0.7-    041114 J95  0.3-  0.5-
    041024 734  0.1+  0.1-    041025 850  1.1-  0.1-    041114 J95  0.6+  0.5+
    041024 734  0.1+  0.4-    041025 J95  0.2+  0.2-    041114 J95  0.0   0.4+
    041024 734  0.3+  0.7-    041025 J95  0.0   0.4-    041118 671  0.2-  0.1+
    041024 448  0.2-  0.1-    041025 J95  0.0   0.1-    041118 671  0.0   0.2-
    041024 704  0.0   0.0     041026 850  1.4-  1.1-    041118 671  0.2-  0.0
    041024 704  0.8-  0.1+    041026 850  0.8+  0.3+    041118 671  0.3+  0.3+
    041024 704  0.1+  0.2-    041026 850  0.1+  0.1+    041119 704  0.4+  0.0
    041024 704  0.4+  0.2-    041026 J95  0.2+  0.2+    041119 704  0.9+  0.5+
    041024 704  0.2+  0.1+    041026 J95  0.1+  0.3+    041119 704 (1.6+  0.6-)
    041024 H06  0.3-  0.2+    041026 J95  0.1+  0.3-    041119 704  1.2+  0.2+
    041024 H06  0.3-  0.4+    041030 673  0.0   0.1+    041119 587  0.3-  1.5-
    041024 H06  0.6+  0.1-    041030 673  0.1+  0.2-    041119 587  0.2-  1.1+
    041024 H06  0.0   0.1+    041030 673  0.1+  0.0     041119 587 (0.4+  2.0+)
    041024 H06  0.3+  0.2+    041030 673  0.4+  0.0     041202 291  0.8-  1.1+
    041024 H06  0.4+  0.4+    041031 734  0.4-  0.3+    041202 291  0.8-  0.0
    041024 198  0.3-  0.1+    041031 734  0.2-  0.5-    041202 291  0.1-  0.3+
    041024 198  0.3-  0.2+    041031 734  0.6+  1.1+    041215 F65  0.5-  0.2+
    041024 198  0.3-  0.2+    041031 734  0.1+  0.2-    041215 F65  0.4-  0.4+
    041024 151  0.2-  0.3-    041031 734  0.3+  0.6-    041215 F65  0.2-  0.2+
    041024 151  0.1-  1.2-    041103 104  0.5-  0.0     041215 F65  0.1-  0.2+
    041024 151  0.1+  0.0     041103 104  1.0-  0.2+    170625 T14  0.0   0.0
    041024 246  0.3+  0.5+    041103 104  0.3-  0.2-    170625 T14  0.1+  0.0
    041024 246  0.2+  0.4+    041105 927  0.2+  0.2+    170625 T14  0.0   0.0
    041024 246  0.3+  0.6+    041105 927  0.5+  0.3+    170627 T14  0.1-  0.1+
    041024 246  0.1+  0.8+    041105 927  0.0   0.6+    170627 T14  0.0   0.0
    041024 246  0.1+  0.4+    041106 932  0.6-  0.1-    170627 T14  0.1-  0.0
    041024 246  0.3+  0.3+    041106 932  0.0   0.2-
    
    Ephemeris:
    2004 UR1                 a,e,i = 2.18, 0.62, 4                   q = 0.8356
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 06 09    01 00 22.7 +10 54 28   0.5879  0.8839    60.1    84.7    22.1
    ...
    2017 06 24    02 16 36.5 +18 15 53   0.7194  0.8385    54.6    81.1    22.3
    ...
    2017 07 02    02 52 37.5 +20 53 59   0.7980  0.8371    53.3    76.9    22.4
    ...
    2017 07 08    03 18 01.4 +22 24 46   0.8573  0.8469    52.9    73.2    22.5
    2017 07 09    03 22 08.1 +22 37 52   0.8671  0.8494    52.9    72.6    22.5
    2017 07 10    03 26 12.8 +22 50 24   0.8768  0.8522    52.9    72.0    22.5
    ...
    2017 07 16    03 49 59.5 +23 54 50   0.9340  0.8735    53.0    68.3    22.6
    ...
    2017 07 24    04 19 51.9 +24 55 02   1.0051  0.9136    53.8    63.7    22.7
    ...
    2017 08 08    05 10 03.3 +25 44 46   1.1170  1.0160    56.7    56.5    22.9
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-N61
    

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