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  • MPEC 2017-F49 : 2012 HN13

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    M.P.E.C. 2017-F49                                Issued 2017 Mar. 21, 14:19 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
    
                                       2012 HN13
    
                               Revision to MPEC 2012-H58
    
    Additional Observations:
         K12H13N |C2017 03 06.33465 13 26 12.14 -10 36 06.6          22.8 VuEF049807
         K12H13N |C2017 03 06.35419 13 26 12.85 -10 36 03.9          22.7 VuEF049807
         K12H13N |C2017 03 06.37313 13 26 13.55 -10 36 01.2          22.8 VuEF049807
         K12H13N |C2017 03 21.28342 13 33 46.69 -09 00 03.4          22.0 VuEF049807
         K12H13N |C2017 03 21.29285 13 33 46.73 -08 59 56.8          21.9 VuEF049807
         K12H13N |C2017 03 21.30197 13 33 46.75 -08 59 50.6          21.9 VuEF049807
    
    Observer details:
    807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
        + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    170306 807 52.0+ 15.3-    170321 807 74.5+ 23.6-    MPO242006   -0.0081 day
    
    Orbital elements:
    2012 HN13                                                Earth MOID = 0.0531 AU
    Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
    M 281.40342              (2000.0)            P               Q
    n   0.58940960     Peri.   96.81999     +0.18791640     +0.98217240
    a   1.4088278      Node   184.02148     -0.92685868     +0.17565111
    e   0.3080281      Incl.    4.07203     -0.32499294     +0.06696314
    P   1.67           H   22.8           G   0.15           U   0
    Residuals in seconds of arc
    120421 F51  0.0   0.1-    120501 291  0.6+  0.2-    120512 204  0.0   0.4-
    120421 F51  0.0   0.0     120502 291  0.4+  0.2+    120512 204  0.1-  0.2-
    120421 F51  0.0   0.0     120502 291  0.2+  0.2+    120512 204  0.4-  0.1-
    120422 291  0.2+  0.1+    120502 291  0.3-  0.3-    120520 291  0.1-  0.1+
    120422 291  0.1-  0.2+    120502 H21  0.0   0.1-    120520 291  0.1-  0.1+
    120422 291  0.1+  0.3+    120502 H21  0.1-  0.1-    120520 291  0.1-  0.1+
    120422 H01  0.1-  0.3+    120502 H21  0.0   0.1-    120521 291  0.5+  0.4+
    120422 H01  0.0   0.2+    120502 A17  0.6+  0.2-    120521 291  0.1-  0.0
    120422 H01  0.2-  0.2+    120502 A17  0.5-  0.2-    120919 H21  0.0   0.2-
    120422 H01  0.0   0.4+    120502 A17  0.2+  0.0     120919 H21  0.2+  0.5-
    120423 H36  0.1+  0.0     120503 H21  0.3+  0.3-    120919 H21  0.0   0.4-
    120423 H36  0.4-  0.1-    120503 H21  0.3+  0.4-    120924 291  0.7-  0.1+
    120424 F51  0.1+  0.1+    120503 H21  0.0   0.4-    120924 291  0.1-  0.0
    120424 F51  0.1-  0.3-    120504 807  0.0   0.3-    120924 291  0.1-  0.4+
    120424 F51  0.1-  0.0     120504 807  0.1-  0.3-    120925 291  0.1+  0.2+
    120424 F51  0.1-  0.2+    120504 807  0.0   0.6-    120925 291  0.2+  0.0
    120427 691  0.4-  0.0     120504 807  0.1-  0.3-    120925 291  0.3+  0.4+
    120427 691  0.0   0.3+    120507 807  0.6+  0.2-    170306 807  0.1+  1.1+
    120427 691  0.1-  0.6+    120507 807  0.3+  0.2+    170306 807  0.0   0.8+
    120430 807  0.1+  0.3-    120510 H21  0.4-  0.4-    170306 807  0.1+  0.5+
    120430 807  0.3-  0.2-    120510 H21  0.4-  0.2-    170321 807  0.5+  0.3-
    120501 291  0.1-  0.5+    120510 H21  0.1-  0.3-    170321 807  0.2+  0.0
    120501 291  0.0   0.5-    120510 H21  0.3-  0.2-    170321 807  0.4-  0.1+
    
    Ephemeris:
    2012 HN13                a,e,i = 1.41, 0.31, 4                   q = 0.9749
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 02 19    13 12 13.5 -10 27 47   0.5946  1.4423   129.6    31.9    23.8
    ...
    2017 03 06    13 25 57.7 -10 37 02   0.4525  1.3754   141.5    26.7    23.0
    ...
    2017 03 14    13 30 56.7 -10 03 02   0.3858  1.3386   148.6    22.8    22.5
    ...
    2017 03 20    13 33 24.5 -09 13 50   0.3402  1.3107   154.3    19.2    22.0
    2017 03 21    13 33 42.2 -09 03 20   0.3329  1.3060   155.3    18.6    21.9
    2017 03 22    13 33 57.8 -08 52 06   0.3258  1.3013   156.3    17.9    21.9
    ...
    2017 03 28    13 34 46.3 -07 28 24   0.2855  1.2732   162.4    13.7    21.4
    ...
    2017 04 05    13 33 53.3 -04 46 53   0.2380  1.2357   170.5     7.7    20.7
    ...
    2017 04 20    13 27 06.5 +03 30 06   0.1679  1.1669   163.9    13.8    20.1
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-F49
    

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