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  • MPEC 2022-O38 : 2015 OT78

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    M.P.E.C. 2022-O38                                 Issued 2022 July 24, 03:02 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
    
                                    2015 OT78                                
    
    
                               Revision to MPEC 2015-P30                            
    
    Additional Observations:
         K15O78T KC2022 07 21.93502 21 31 49.67 -29 59 24.3                VEO038M21
         K15O78T KC2022 07 21.97034 21 31 52.34 -29 57 42.6          20.4 GVEO038M21
         K15O78T #C2022 07 22.84692 21 33 12.643-29 14 10.21         20.3 GXEO038L81
         K15O78T #C2022 07 22.85589 21 33 13.366-29 13 44.00         20.6 GXEO038L81
         K15O78T KC2022 07 22.99481 21 33 23.71 -29 06 52.3          20.2 GVEO038M21
         K15O78T HC2022 07 23.03852 21 33 26.79 -29 04 39.4                VEO038M21
         K15O78T  C2022 07 23.46708821 34 05.505-28 43 12.91         20.36wUEO038F52
         K15O78T  C2022 07 23.47855821 34 06.309-28 42 37.62         20.38wUEO038F52
         K15O78T  C2022 07 23.48994121 34 07.100-28 42 02.51         20.45wUEO038F52
         K15O78T  C2022 07 23.50138221 34 07.895-28 41 27.33         20.92wUEO038F52
         K15O78T  C2022 07 23.60721621 34 15.407-28 35 55.02         20.01GVEO038F52
         K15O78T  C2022 07 23.60976421 34 15.588-28 35 47.11         20.32GVEO038F52
         K15O78T  C2022 07 23.61040021 34 15.640-28 35 45.03         20.40GVEO038F52
    
    Observer details:
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, I.
        Smith, K. Chambers, T. Dukes.  Measurers K. Chambers, S. Chastel, T. de
        Boer, J. Fairlamb, H. Gao, M. Huber, C.-C. Lin, E. Magnier, Y.
        Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    L81 Skygems Namibia Remote Observatory.  Observer D. De Martin.  0.51-m f/6.8
        CDK + CCD.
    M21 Schiaparelli Southern Observatory, Hakos.  Observers A. Aletti, F.
        Bellini, L. Buzzi, G. Galli.  Measurer L. Buzzi.  0.36-m f/8.4 reflector +
        CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    220721 M21 0.17- 0.10-    220723 F52 0.18- 0.11-    MPO386926   -0.04 days
    
    Orbital elements:
    2015 OT78                                                Earth MOID = 0.1770 AU
    Epoch 2022 Aug. 9.0 TT = JDT 2459800.5                  Veres                   
    M 357.59831              (2000.0)            P               Q                  
    n   0.28210624     Peri.    9.44104     +0.82385839     +0.55329841             
    a   2.3024714      Node   316.21490     -0.53093105     +0.67740916             
    e   0.4840057      Incl.   10.23546     -0.19841767     +0.48474498             
    P   3.49           H   22.37          G   0.15           U   0                  
    Residuals in seconds of arc
    150725 F51  0.0   0.1+    150819 807  0.0   0.0     150905 F51  0.1-  0.0
    150725 F51  0.1-  0.1+    150819 807  0.1-  0.0     150905 F51  0.1-  0.1-
    150725 F51  0.0   0.1+    150819 Q60  0.4-  0.8-    150905 F51  0.2-  0.1-
    150725 F51  0.1+  0.2+    150819 Q60  0.6-  0.2-    150906 H21  0.0   0.3-
    150726 W85  0.2-  0.0     150819 Q60  0.2-  0.0     150906 H21  0.4+  0.2-
    150726 W85  0.1+  0.1-    150820 291  0.4+  0.2-    150906 H21  0.3+  0.3-
    150726 W85  0.1+  0.0     150820 291  0.2-  0.2-    150906 H21  0.0   0.4-
    150810 F51  0.1-  0.1-    150820 291  0.2+  0.0     150911 H21  0.0   0.2-
    150810 F51  0.0   0.1-    150820 705  0.0   0.1+    150911 H21  0.2-  0.1-
    150810 F51  0.0   0.1-    150820 705  0.1+  0.4+    150911 H21  0.1-  0.1-
    150810 I93  0.6-  0.5-    150820 705  0.1-  0.1-    150911 H21  0.2-  0.1+
    150810 I93  0.3+  0.1-    150821 H21  0.2+  0.3+    150911 H21  0.3+  0.2+
    150810 I93  0.2+  0.3+    150821 H21  0.1-  0.0     150917 703  0.9-  0.4+
    150811 H36  1.2+  0.1-    150824 H21  0.3+  0.1-    150917 703  0.3-  0.8-
    150811 H36  0.1-  0.1+    150824 H21  0.0   0.1+    150917 703  0.3-  1.1-
    150811 H21  0.1-  0.2-    150824 H21  0.1+  0.1+    151005 H21  0.4+  0.1-
    150811 H21  0.1+  0.1-    150824 H21  0.2-  0.3+    151005 H21  0.3+  0.2+
    150811 H21  0.0   0.1+    150824 H21  0.0   0.1+    151005 H21  0.1-  0.7+
    150811 H21  0.1-  0.1-    150824 H21  0.3+  0.0     151008 H21  0.1-  0.0
    150811 F51  0.1+  0.1+    150824 H21  0.6-  0.4+    151008 H21  0.1+  0.1-
    150811 F51  0.0   0.1-    150824 H21  0.3+  0.2-    151008 H21  0.1-  0.0
    150811 F51  0.0   0.0     150825 H21  0.3+  0.1+    151015 H21  1.1+  0.0
    150812 F51  0.1+  0.0     150825 H21  0.1+  0.4+    151015 H21  0.1-  0.4-
    150812 F51  0.2+  0.4+    150825 H21  0.1+  0.2-    220721 M21  0.1-  0.2-
    150812 F51  0.1+  0.0     150826 H21  0.2-  0.8+    220721 M21  0.4+  0.1+
    150816 H21  0.2+  0.0     150826 H21  0.4-  0.7+    220722 L81  0.0   0.2+
    150816 H21  0.1+  0.2+    150826 H21  0.4-  0.8+    220722 L81  0.0   0.2+
    150816 H21  0.1+  0.0     150902 H21  0.0   0.1+    220722 M21  0.2+  0.2-
    150816 H21  0.1+  0.1+    150902 H21  0.1-  0.2-    220723 M21  0.0   0.1-
    150817 H21  0.0   0.1+    150902 H21  0.3-  0.0     220723 F52  0.1-  0.0
    150817 H21  0.2-  0.1-    150903 H21  0.3-  0.2-    220723 F52  0.0   0.0
    150817 H21  0.2+  0.0     150903 H21  0.0   0.2-    220723 F52  0.0   0.1+
    150817 H21  0.1+  0.1+    150903 H21  0.3-  0.2+    220723 F52  0.0   0.1-
    150817 H21  0.1+  0.2+    150904 H21  0.2-  0.1+    220723 F52  0.1+  0.1+
    150817 H21  0.1-  0.0     150904 H21  0.2-  0.1-    220723 F52  0.0   0.0
    150819 807  0.0   0.1-    150904 H21  0.2-  0.2+    220723 F52  0.1+  0.0
    150819 807  0.0   0.0     150904 H21  0.0   0.4-
    150819 807  0.0   0.0     150904 H21  0.0   0.5-
    
    Ephemeris:
    2015 OT78                a,e,i = 2.30, 0.48, 10                  q = 1.1881
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2022 06 24    20 40 20.1 -42 31 13   0.3619  1.3249   143.5    27.2    22.0
    ...
    2022 07 09    21 09 58.8 -38 02 11   0.2754  1.2632   150.2    23.6    21.2
    ...
    2022 07 17    21 23 59.5 -33 37 06   0.2390  1.2367   154.7    20.5    20.7
    ...
    2022 07 23    21 33 23.7 -29 06 35   0.2166  1.2203   158.7    17.6    20.4
    2022 07 24    21 34 51.5 -28 15 03   0.2133  1.2179   159.4    17.1    20.3
    2022 07 25    21 36 17.4 -27 21 40   0.2102  1.2156   160.1    16.5    20.3
    ...
    2022 07 31    21 44 15.5 -21 23 27   0.1942  1.2035   164.5    13.0    20.0
    ...
    2022 08 08    21 53 20.7 -12 02 10   0.1815  1.1926   168.8     9.5    19.7
    ...
    2022 08 23    22 06 41.6 +06 06 43   0.1857  1.1896   162.3    15.0    19.9
    
    A. U. Tomatic                (C) Copyright 2022 MPC           M.P.E.C. 2022-O38
    


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