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  • MPEC 2016-X45 : 2014 YR15

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    M.P.E.C. 2016-X45                                Issued 2016 Dec. 5, 14:41 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
    
                                       2014 YR15
    
                               Revision to MPEC 2014-Y78
    
    Additional Observations:
         K14Y15R 2C2016 11 26.63213011 01 25.406+16 37 42.10         22.1 RtEX045568
         K14Y15R 2C2016 11 26.63387011 01 25.700+16 37 40.23         22.0 RtEX045568
         K14Y15R 2C2016 11 26.63565411 01 25.985+16 37 38.48         22.0 RtEX045568
         K14Y15R 2C2016 11 27.65224311 04 23.444+16 20 04.26         21.7 RtEX045568
         K14Y15R 2C2016 11 27.65333311 04 23.629+16 20 03.15         21.6 RtEX045568
         K14Y15R 2C2016 11 27.65441811 04 23.804+16 20 02.13         21.6 RtEX045568
         K14Y15R 2C2016 11 27.65547511 04 23.996+16 20 00.94         21.8 RtEX045568
         K14Y15R 2C2016 11 27.65654511 04 24.183+16 19 59.73         22.2 RtEX045568
         K14Y15R 2C2016 11 27.65768511 04 24.362+16 19 58.47         21.9 RtEX045568
    
    Observer details:
    568 Mauna Kea.  Observers D. J. Tholen, S. Sheppard.  Measurer D. J. Tholen.
        8.2-m reflector.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    161126 568 0.12- 0.15+    161127 568 0.13- 0.16+    MPO369254   +0.37 day
    
    Orbital elements:
    2014 YR15                                           PHA, Earth MOID = 0.0384 AU
    Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
    M 306.92416              (2000.0)            P               Q
    n   1.51831483     Peri.  308.92916     -0.00575031     +0.99798595
    a   0.7497126      Node   320.60088     -0.88391362     -0.03461491
    e   0.4092219      Incl.    5.71217     -0.46761484     +0.05315882
    P   0.65           H   21.5           G   0.15           U   3
    Residuals in seconds of arc
    141227 703  0.5-  0.2-    141229 Z99  0.2+  0.1-    150107 U69  0.2+  0.1-
    141227 703  0.3-  0.2-    141229 J95  0.0   0.2+    150107 U69  0.0   0.0
    141227 703  0.5+  1.0-    141229 J95  0.0   0.1-    150107 U69  0.4-  0.3+
    141227 300  0.3+  0.5+    141229 J95  0.1-  0.1-    150113 C47  0.4+  0.3+
    141227 300  0.7+  0.4+    141229 711  0.1-  0.2+    150113 C47  0.1-  0.3-
    141227 900  0.3-  0.4+    141229 711  0.0   0.5+    150113 C47  0.9+  0.4+
    141227 300  0.5+  0.6+    141229 711  0.1-  0.3+    150113 C47  0.9+  0.7+
    141227 300  0.7+  0.3+    141229 G96  0.0   0.0     150113 L04  0.0   0.0
    141227 300  0.5+  0.5+    141229 G96  0.0   0.0     150113 L04  0.4-  0.1-
    141227 900  0.3+  0.1+    141229 G96  0.0   0.0     150113 L04  0.0   0.0
    141227 300  0.6+  0.1+    141231 L04  0.0   0.3-    150114 C77  0.5+  0.4+
    141227 300  0.0   0.6+    141231 L04  0.1+  0.1+    150114 C77  0.4+  0.3+
    141227 300  0.6+  0.1+    141231 L04  0.2+  0.0     150114 C77  0.0   0.2+
    141227 B49  0.3+  0.2-    141231 H21  0.3-  0.1-    150114 C77  0.3+  0.4+
    141227 B49  0.2+  0.1-    141231 H21  0.3-  0.1-    150116 H45  0.0   0.0
    141227 B49  0.1+  0.0     141231 H21  0.0   0.4-    150116 H45  0.4-  0.2+
    141228 J16  0.2+  0.6+    141231 H21  0.1+  0.3-    150116 H45  0.0   0.2-
    141228 J16  0.0   0.0     141231 H21  0.0   0.1-    150116 H45  0.2-  0.1+
    141228 J16  0.6-  0.1+    141231 H21  0.1+  0.2-    150116 H45  0.1+  0.0
    141228 J16  0.1+  0.1-    150103 B49  0.1-  0.3+    150116 H45  0.1-  0.2-
    141228 G40  0.2-  0.1+    150103 B49  0.2-  0.2+    150116 H45  0.3-  0.8-
    141228 G40  0.2+  0.1+    150103 B49  0.4-  0.3+    150116 H45  0.1+  0.2-
    141228 I93  0.5-  0.0     150104 204  0.1+  0.3-    150117 K30  0.1+  0.4-
    141228 I93  0.1-  0.3+    150104 204  0.2-  0.3-    150117 K30  0.0   0.3-
    141228 I93  0.1+  0.1+    150104 204  0.2-  0.2-    150119 H21  0.1-  0.4-
    141228 H01  0.4-  0.3+    150104 033  0.8-  0.0     150119 H21  0.0   0.0
    141228 H01  0.1-  0.3+    150104 033  0.3+  0.2-    150119 H21  0.1-  0.0
    141228 H01  0.1-  0.2+    150104 033  0.3+  0.2-    150119 H21  0.2-  0.1+
    141228 H01  0.1-  0.1+    150104 033  0.4+  0.2-    150119 H21  0.0   0.1+
    141228 H36  0.3+  0.1-    150104 033  0.0   0.1+    150119 H21  0.1-  0.1+
    141228 H36  0.0   0.1-    150104 033  0.4+  0.0     150119 H21  0.5-  0.0
    141228 H36  0.1-  0.1+    150105 G40  0.2+  0.0     150119 H21  0.0   0.1-
    141228 H36  0.1+  0.3+    150105 G40  0.3-  0.4-    161126 568  0.0   0.0
    141228 H36  0.3+  0.1-    150105 G40  0.0   0.4-    161126 568  0.1+  0.1-
    141228 926  0.2+  0.1+    150105 G40  0.1-  0.3-    161126 568  0.1-  0.1-
    141228 926  0.0   0.2+    150105 G40  0.1-  0.1-    161127 568  0.1-  0.0
    141228 926  0.5+  0.0     150105 705  0.2-  0.4-    161127 568  0.0   0.0
    141229 J16  0.3-  0.1-    150105 705 (0.4-  2.4+)   161127 568  0.2-  0.1+
    141229 J16  0.0   0.4+    150105 705 (0.8-  2.1+)   161127 568  0.0   0.0
    141229 J16  0.0   0.2-    150106 J69  0.1+  0.5+    161127 568  0.1+  0.1-
    141229 Z99  0.0   0.1+    150106 J69  0.1-  0.6+    161127 568  0.1-  0.1-
    141229 Z99  0.1+  0.2+    150106 J69  0.3-  0.2+
    
    Ephemeris:
    2014 YR15                a,e,i = 0.75, 0.41, 6                   q = 0.4429
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2016 11 05    10 04 19.9 +21 37 20   0.5860  1.0361    77.4    69.1    22.8
    ...
    2016 11 20    10 42 51.0 +18 23 26   0.5169  1.0555    82.7    68.2    22.6
    ...
    2016 11 28    11 05 24.1 +16 14 00   0.4738  1.0558    84.9    68.5    22.4
    ...
    2016 12 04    11 23 43.5 +14 20 26   0.4397  1.0515    86.1    69.2    22.3
    2016 12 05    11 26 55.8 +13 59 49   0.4339  1.0504    86.2    69.4    22.2
    2016 12 06    11 30 11.0 +13 38 39   0.4281  1.0492    86.4    69.6    22.2
    ...
    2016 12 12    11 50 54.9 +11 18 39   0.3933  1.0397    86.8    71.0    22.0
    ...
    2016 12 20    12 22 49.3 +07 28 00   0.3477  1.0209    86.1    74.0    21.8
    ...
    2017 01 04    13 44 05.8 -03 03 42   0.2756  0.9665    78.4    85.4    21.6
    
    A. U. Tomatic                (C) Copyright 2016 MPC           M.P.E.C. 2016-X45
    

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