• MPC Preparation (Info)

  • MPEC 2019-M103 : 2018 RR2

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    M.P.E.C. 2019-M103                                Issued 2019 June 29, 00:17 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
    
                                    2018 RR2                                 
    
                               Revision to MPEC 2018-R93                            
    
    Additional Observations:
         K18R02R  C2017 09 12.38415 23 05 14.155-29 17 41.49         21.2 GVEM103F51
         K18R02R  C2017 09 12.39445 23 05 13.884-29 17 41.28         21.7 GVEM103F51
         K18R02R  C2017 09 12.40475 23 05 13.615-29 17 40.92         21.5 GVEM103F51
         K18R02R  C2017 09 12.41505 23 05 13.357-29 17 40.87         21.5 GVEM103F51
         K18R02R  C2018 08 10.56588 00 01 22.138-09 44 57.31         20.9 GVEM103F51
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, B. Gibson,
        T. Goggia, T. Lowe, E. Magnier, N. Primak, A. Schultz, J. Thiel, S. Watters,
        M. Willman.  Measurers S. Chastel, M. Huber, R. Jedicke, R. Wainscoat,
        R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    170912 F51 19.7+  7.2+    180810 F51  0.1+  0.0+    MPO473498   -0.13 days
    
    Orbital elements:
    2018 RR2
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
    M 359.12092              (2000.0)            P               Q
    n   0.00993211     Peri.    7.61540     +0.98827851     -0.15177068
    a  21.4342496      Node     1.46096     +0.08191929     +0.43618742
    e   0.6412794      Incl.   40.23815     +0.12882085     +0.88696460
    P  99.23           H   12.1           G   0.15           U   1
    Residuals in seconds of arc
    170912 F51  0.0   0.0     180814 F51  0.0   0.0     180914 G96  0.1+  0.0
    170912 F51  0.0   0.0     180908 D29  0.1-  0.2-    181003 F52  0.1+  0.1-
    170912 F51  0.0   0.1+    180908 D29  0.4+  0.3-    181003 F52  0.1+  0.1-
    170912 F51  0.1+  0.1-    180908 D29  0.1-  0.1-    181003 F52  0.0   0.2-
    180810 F51  0.1-  0.0     180909 I52  0.2-  0.3-    181003 F52  0.0   0.0
    180811 F51  0.0   0.1+    180909 I52  0.2+  0.2-    181030 W49  1.2-  1.1+
    180811 F51  0.0   0.1+    180909 I52  0.2-  0.3-    181031 W49  0.8+  1.1+
    180811 F51  0.0   0.1+    180909 I52  0.1+  0.0     181031 W49 (1.3+  2.2+)
    180814 F51  0.0   0.0     180914 G96  0.0   0.5-    181103 F52  0.1+  0.3-
    180814 F51  0.1-  0.0     180914 G96  0.3-  0.2+    181103 F52  0.3+  0.7-
    180814 F51  0.1+  0.1-    180914 G96  0.2-  0.2-    181103 F52  0.0   0.3-
    
    Ephemeris:
    2018 RR2                 a,e,i = 21.43, 0.64, 40                 q = 7.6889
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2019 05 30    00 36 44.2 +06 48 30   8.1990  7.6939    57.0     6.3    21.6
    ...
    2019 06 14    00 41 10.7 +07 57 16   7.9816  7.6915    69.9     7.1    21.6
    ...
    2019 06 22    00 42 59.7 +08 31 32   7.8575  7.6906    76.9     7.4    21.5
    ...
    2019 06 28    00 44 04.7 +08 56 01   7.7622  7.6900    82.2     7.5    21.5
    2019 06 29    00 44 14.0 +08 59 59   7.7462  7.6900    83.1     7.5    21.5
    2019 06 30    00 44 23.0 +09 03 55   7.7301  7.6899    84.0     7.6    21.5
    ...
    2019 07 06    00 45 07.3 +09 26 51   7.6335  7.6895    89.4     7.6    21.5
    ...
    2019 07 14    00 45 40.9 +09 55 27   7.5050  7.6891    96.6     7.5    21.4
    ...
    2019 07 29    00 45 22.0 +10 42 32   7.2720  7.6889   110.6     7.1    21.4
    
    A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-M103
    


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