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  • MPEC 2017-K10 : 2017 HT2

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    M.P.E.C. 2017-K10                                Issued 2017 May 18, 01:52 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
    
                                       2017 HT2
    
                               Revision to MPEC 2017-H52
    
    Additional Observations:
         K17H02T  C2015 01 17.24259 05 19 02.031+14 26 19.66         22.3 wLEK010F51
         K17H02T  C2015 01 17.25576 05 19 01.469+14 26 24.68         22.2 wLEK010F51
         K17H02T  C2015 01 17.26891 05 19 00.891+14 26 29.58         22.0 wLEK010F51
         K17H02T  C2015 01 19.37432905 17 37.004+14 39 42.15         21.9 GUEK010F51
         K17H02T  C2015 01 19.37499805 17 36.976+14 39 42.39         22.6 GUEK010F51
         K17H02T  C2015 01 19.38806905 17 36.463+14 39 47.00         22.2 GUEK010F51
         K17H02T  C2015 01 19.40046405 17 35.980+14 39 51.74         21.9 GUEK010F51
         K17H02T  C2015 01 19.40112605 17 35.961+14 39 52.05         22.5 GUEK010F51
         K17H02T  C2015 01 19.41357005 17 35.457+14 39 56.72         21.9 GUEK010F51
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, N. Primak,
        A. Schultz, M. Willman.  Measurer M. Micheli.  1.8-m Ritchey-Chretien
        + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    150117 F51 47.4- 14.9-    150119 F51 46.5- 14.6-    MPO405804   +0.0045 day
    
    Orbital elements:
    2017 HT2                                            PHA, Earth MOID = 0.0102 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 344.52608              (2000.0)            P               Q
    n   0.28540674     Peri.  202.70066     +0.74316841     +0.63098618
    a   2.2846862      Node   116.23730     -0.56947080     +0.77114747
    e   0.5626932      Incl.   14.37011     -0.35128866     +0.08478222
    P   3.45           H   18.2           G   0.15           U   3
    Residuals in seconds of arc
    150117 F51  0.1-  0.1+    170421 G96  0.3+  0.2-    170423 926  0.2+  0.2-
    150117 F51  0.1+  0.1+    170421 G96  0.5+  0.8-    170423 291  0.4+  0.0
    150117 F51  0.1+  0.0     170422 H01  0.2-  0.1-    170423 291  0.3-  0.3+
    150119 F51  0.1-  0.1+    170422 H01  0.0   0.1-    170423 291  0.2-  0.1+
    150119 F51  0.1-  0.1+    170422 H01  0.1-  0.0     170424 J04  0.2+  0.3-
    150119 F51  0.0   0.2-    170422 H01  0.2-  0.1-    170424 J04  0.1+  0.1-
    150119 F51  0.0   0.1-    170422 G96  0.4-  0.5+    170424 J04  0.1+  0.2-
    150119 F51  0.1+  0.0     170422 G96  0.7+  0.5-    170427 T12  0.1+  0.2-
    150119 F51  0.1-  0.0     170422 G96  0.2+  1.3-    170427 T12  0.1+  0.1-
    170319 F51  0.1+  0.1-    170422 G96  0.4+  0.4+    170427 T12  0.1+  0.1-
    170319 F51  0.1-  0.1+    170422 705  0.1+  0.3-    170428 T12  0.0   0.1-
    170420 G96  0.6+  0.0     170422 705  0.1-  0.3-    170428 T12  0.0   0.1-
    170420 G96  0.1-  0.9+    170422 705  0.1-  0.2-    170428 T12  0.0   0.1-
    170420 G96  0.3+  0.5+    170423 I52  0.1+  0.2-    170502 691  0.0   0.3-
    170420 G96  0.2+  0.0     170423 I52  0.2-  0.5-    170502 691  0.2-  0.5+
    170420 G96  0.2-  0.3+    170423 I52  0.6+  0.3+    170503 291  0.4-  0.4+
    170420 G96  0.1-  0.1-    170423 G96  1.2+  0.2+    170503 291  0.3+  0.4-
    170420 G96  0.1-  0.1-    170423 G96  1.4-  0.6+    170517 691  0.1+  0.1-
    170420 G96  0.2-  0.2+    170423 926  0.1-  0.1+    170517 691  0.2+  0.0
    170421 G96  0.1-  0.2-    170423 G96  0.3-  0.0     170517 691  0.3-  0.1+
    170421 G96  0.4+  0.1+    170423 G96  1.0-  0.2+
    
    Ephemeris:
    2017 HT2                 a,e,i = 2.28, 0.56, 14                  q = 0.9991
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 04 18    13 06 21.1 +19 43 26   1.3083  2.2254   148.2    13.8    21.3
    ...
    2017 05 03    12 47 38.8 +20 58 38   1.2958  2.1249   134.2    19.9    21.4
    ...
    2017 05 11    12 39 29.0 +21 01 15   1.3057  2.0696   126.2    23.2    21.5
    ...
    2017 05 17    12 34 37.5 +20 46 52   1.3185  2.0275   120.4    25.5    21.5
    2017 05 18    12 33 55.9 +20 43 11   1.3210  2.0204   119.5    25.8    21.5
    2017 05 19    12 33 16.5 +20 39 09   1.3236  2.0133   118.5    26.2    21.5
    ...
    2017 05 25    12 30 05.0 +20 07 53   1.3407  1.9704   113.0    28.3    21.6
    ...
    2017 06 02    12 27 54.0 +19 08 58   1.3664  1.9123   105.9    30.7    21.6
    ...
    2017 06 17    12 30 01.8 +16 35 00   1.4162  1.8009    94.1    34.2    21.7
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-K10
    

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