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  • MPEC 2021-F15 : 2021 EC5

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    M.P.E.C. 2021-F15                                Issued 2021 March 17, 15:37 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
    
                                    2021 EC5                                 
    
    
    Observations:
         K21E05C*KC2021 03 14.26430 13 56 03.53 -47 39 52.1          18.3 GVEF015W94
         K21E05C KC2021 03 14.26981 13 56 04.42 -47 39 58.2          18.0 GVEF015W94
         K21E05C KC2021 03 14.27532 13 56 05.04 -47 40 05.1                VEF015W94
         K21E05C KC2021 03 14.28882 13 56 07.00 -47 40 21.6          19.2 GVEF015W95
         K21E05C KC2021 03 14.29329 13 56 07.63 -47 40 27.0          19.3 GVEF015W95
         K21E05C  C2021 03 14.29529 13 56 07.94 -47 40 29.3          18.3 GVEF015W95
         K21E05C KC2021 03 14.38009 13 56 20.03 -47 42 09.4          18.9 GVEF015W95
         K21E05C KC2021 03 14.38543 13 56 20.79 -47 42 15.6          18.7 GVEF015W95
         K21E05C KC2021 03 14.39075 13 56 21.56 -47 42 21.8          18.5 GVEF015W95
         K21E05C KC2021 03 15.35576 13 58 48.98 -48 01 30.7          19.7 GVEF015W95
         K21E05C KC2021 03 15.36110 13 58 49.75 -48 01 36.9          19.3 GVEF015W95
         K21E05C KC2021 03 15.36645 13 58 50.53 -48 01 43.1          19.5 GVEF015W95
         K21E05C KC2021 03 15.37382 13 58 51.59 -48 01 51.4          19.3 GVEF015W95
         K21E05C KC2021 03 15.37915 13 58 52.40 -48 01 58.2          18.8 GVEF015W95
         K21E05C KC2021 03 15.38451 13 58 53.19 -48 02 03.8          18.8 GVEF015W95
         K21E05C KC2021 03 15.53674 13 59 18.56 -48 04 58.6          18.3 RVEF015Q62
         K21E05C KC2021 03 15.54198 13 59 19.35 -48 05 05.5          19.0 RVEF015Q62
         K21E05C KC2021 03 15.54513 13 59 19.79 -48 05 09.0          19.1 RVEF015Q62
         K21E05C  C2021 03 16.60261614 02 04.31 -48 25 45.1          19.9 GVEF015474
         K21E05C  C2021 03 16.60461714 02 04.55 -48 25 47.0          20.1 GVEF015474
         K21E05C  C2021 03 16.60661814 02 04.90 -48 25 49.7          19.8 GVEF015474
         K21E05C KC2021 03 17.57987714 04 40.53 -48 44 26.9          19.2 GVEF015474
         K21E05C KC2021 03 17.58198814 04 40.87 -48 44 29.5          19.0 GVEF015474
         K21E05C KC2021 03 17.58409914 04 41.19 -48 44 32.1          19.3 GVEF015474
    
    Observer details:
    474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore, P. M.
        Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
    Q62 iTelescope Observatory, Siding Spring.  Observers C. Jacques, E. Pimentel,
        J. Barros.  Measurer C. Jacques.  0.43-m f/6.8 astrograph + CCD + focal
        reducer.
    W94 MAP, San Pedro de Atacama.  Observers A. Maury, G. Attard.  Measurers A.
        Maury, G. Attard, D. Parrott.
    W95 Observatorio Panameno, San Pedro de Atacama.  Observers A. Maury, G.
        Attard, J. Fabrega.  Measurers A. Maury, G. Attard, D. Parrott.  0.40-m
        f/3.8 reflector + CCD.
    
    Orbital elements:
    2021 EC5                                                 Earth MOID = 0.1250 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M 311.06515              (2000.0)            P               Q
    n   0.30452995     Peri.   10.39067     -0.31513951     +0.91514665
    a   2.1880104      Node   241.63893     -0.88994285     -0.37697289
    e   0.4810383      Incl.   16.59904     -0.32967988     +0.14282175
    P   3.24           H   18.4           G   0.15           U   8
    Residuals in seconds of arc
    210314 W94  0.1-  0.2-    210314 W95  0.0   0.1-    210315 Q62  0.2+  0.1-
    210314 W94  1.0+  0.3+    210315 W95  0.0   0.2+    210315 Q62  0.2-  0.3+
    210314 W94  0.6-  0.1+    210315 W95  0.1-  0.1+    210316 474  0.4+  0.3-
    210314 W95  0.2-  0.1-    210315 W95  0.1-  0.1+    210316 474  0.2-  0.2+
    210314 W95  0.2-  0.2-    210315 W95  0.3-  0.2+    210316 474  0.3+  0.2-
    210314 W95  0.0   0.1-    210315 W95  0.0   0.4-    210317 474  0.2-  0.2+
    210314 W95  0.1+  0.1-    210315 W95  0.1+  0.1+    210317 474  0.0   0.0
    210314 W95  0.0   0.1-    210315 Q62  0.1+  0.4+    210317 474  0.1-  0.2-
    
    Ephemeris:
    2021 EC5                 a,e,i = 2.19, 0.48, 17                  q = 1.1355
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 02 15    13 00 06.5 -37 39 48   0.8633  1.5479   113.3    35.9    20.5
    ...
    2021 03 02    13 28 21.7 -43 18 57   0.6967  1.4553   118.1    36.9    19.9
    ...
    2021 03 10    13 45 46.2 -46 12 12   0.6160  1.4078   120.2    37.5    19.6
    ...
    2021 03 16    14 00 29.3 -48 14 01   0.5591  1.3733   121.7    38.1    19.4
    2021 03 17    14 03 07.0 -48 33 21   0.5499  1.3677   121.9    38.1    19.3
    2021 03 18    14 05 48.2 -48 52 22   0.5408  1.3621   122.1    38.2    19.3
    ...
    2021 03 24    14 23 16.9 -50 38 10   0.4879  1.3294   123.4    38.8    19.0
    ...
    2021 04 01    14 51 04.2 -52 28 59   0.4219  1.2883   125.0    39.4    18.6
    ...
    2021 04 16    16 00 57.3 -52 58 50   0.3122  1.2212   128.1    40.3    17.9
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-F15
    


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