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  • MPEC 2015-H134: 2015 HC117

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    M.P.E.C. 2015-H134                               Issued 2015 Apr. 27, 17:56 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
    
                                      2015 HC117
    
    Observations:
         K15HB7C* C2015 04 25.21524 15 05 19.77 -02 33 04.2          20.9 VoEH134691
         K15HB7C  C2015 04 25.23408 15 05 18.48 -02 32 57.2          20.8 VoEH134691
         K15HB7C  C2015 04 25.25291 15 05 17.14 -02 32 50.8          21.0 VoEH134691
         K15HB7C KC2015 04 25.31539 15 05 12.87 -02 32 28.9                oEH134291
         K15HB7C KC2015 04 25.32770 15 05 12.03 -02 32 24.7          20.4 RoEH134291
         K15HB7C KC2015 04 25.33805 15 05 11.29 -02 32 20.7          19.9 RoEH134291
         K15HB7C KC2015 04 25.34657 15 05 10.70 -02 32 17.9          20.1 RoEH134291
         K15HB7C  C2015 04 26.05968615 04 24.15 -02 27 58.3          20.2 RqEH134K91
         K15HB7C  C2015 04 26.06183815 04 24.01 -02 27 57.6          20.2 RqEH134K91
         K15HB7C  C2015 04 26.06406315 04 23.84 -02 27 56.8          20.3 RqEH134K91
         K15HB7C  C2015 04 26.06624415 04 23.70 -02 27 56.1          20.6 RqEH134K91
         K15HB7C  C2015 04 26.06854315 04 23.53 -02 27 55.3          20.2 RqEH134K91
         K15HB7C  C2015 04 26.07092015 04 23.38 -02 27 54.6          20.4 RqEH134K91
         K15HB7C  C2015 04 26.75811 15 03 38.87 -02 24 22.8          21.8 RoEH134300
         K15HB7C  C2015 04 26.76892 15 03 38.18 -02 24 20.0          21.3 RoEH134300
         K15HB7C  C2015 04 26.77973 15 03 37.45 -02 24 15.8          21.7 RoEH134300
         K15HB7C  C2015 04 26.79053 15 03 36.68 -02 24 12.3          21.6 RoEH134300
         K15HB7C KC2015 04 27.24785 15 03 08.01 -02 21 45.8                oEH134291
         K15HB7C KC2015 04 27.25364 15 03 07.62 -02 21 43.6                oEH134291
         K15HB7C KC2015 04 27.25943 15 03 07.22 -02 21 42.2                oEH134291
    
    Observer details:
    291 LPL/Spacewatch II.  Observers R. A. Mastaler, A. F. Tubbiolo.  1.8-m f/2.7
        reflector + CCD.
    300 Bisei Spaceguard Center--BATTeRS.  Observers K. Nishiyama, S. Okumura.
        1.0-m f/3.0 reflector + CCD.
    691 Steward Observatory, Kitt Peak.  Observer R. A. Mastaler.  0.9-m f/3
        reflector + CCD.
    K91 Sutherland-LCOGT A.  Observer T. Lister.  1.0-m f/8 Ritchey-Chretien + CCD.
    
    Orbital elements:
    2015 HC117                                               Earth MOID = 0.2415 AU
    Epoch 2015 June 27.0 TT = JDT 2457200.5                 MPC
    M  42.38503              (2000.0)            P               Q
    n   0.25646292     Peri.  348.84322     -0.81047330     -0.58402487
    a   2.4535015      Node   155.25257     +0.54541639     -0.78055731
    e   0.4995790      Incl.    6.20608     +0.21366797     -0.22281211
    P   3.84           H   20.4           G   0.15           U   8
    Residuals in seconds of arc
    150425 691  0.2+  0.3-    150426 K91  0.1-  0.1+    150426 300  0.6+  0.8-
    150425 691  0.1+  0.1+    150426 K91  0.0   0.1+    150426 300  0.8+  0.1-
    150425 691  0.6-  0.1-    150426 K91  0.2-  0.1+    150426 300  0.3+  0.1-
    150425 291  0.2+  0.0     150426 K91  0.1-  0.1+    150427 291  0.1-  0.0
    150425 291  0.4+  0.1-    150426 K91  0.3-  0.1+    150427 291  0.0   0.4+
    150425 291  0.1+  0.3+    150426 K91  0.1-  0.0     150427 291  0.0   0.0
    150425 291  0.2+  0.1+    150426 300  0.1-  0.1-
    
    Ephemeris:
    2015 HC117               a,e,i = 2.45, 0.50, 6                   q = 1.2278
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2015 03 28    15 25 44.9 -06 40 48   0.5727  1.4591   134.8    29.0    21.3
    ...
    2015 04 12    15 18 19.7 -04 13 39   0.5912  1.5436   150.2    18.8    21.2
    ...
    2015 04 20    15 10 50.2 -03 07 30   0.6140  1.5911   158.2    13.5    21.1
    ...
    2015 04 26    15 04 28.5 -02 28 26   0.6384  1.6275   163.1    10.4    21.1
    2015 04 27    15 03 23.7 -02 22 57   0.6431  1.6336   163.7     9.9    21.2
    2015 04 28    15 02 19.0 -02 17 47   0.6480  1.6397   164.3     9.6    21.2
    ...
    2015 05 04    14 55 58.4 -01 53 31   0.6812  1.6768   165.7     8.5    21.3
    ...
    2015 05 12    14 48 20.9 -01 39 19   0.7363  1.7268   162.6    10.1    21.6
    ...
    2015 05 27    14 38 38.8 -02 04 15   0.8718  1.8214   150.1    16.1    22.3
    
    A. U. Tomatic                (C) Copyright 2015 MPC           M.P.E.C. 2015-H134
    

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