• MPC Preparation (Info)

  • MPEC 2021-E114 : 2021 EN3

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    M.P.E.C. 2021-E114                               Issued 2021 March 11, 19:27 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 EN3                                 
    
    
    Observations:
         K21E03N* C2021 03 11.22275309 45 32.64 +24 56 40.6                VEE114G96
         K21E03N  C2021 03 11.22841209 45 30.77 +24 57 36.5                VEE114G96
         K21E03N  C2021 03 11.23407409 45 28.85 +24 58 33.7          20.48GVEE114G96
         K21E03N  C2021 03 11.23973609 45 26.90 +24 59 30.0          20.71GVEE114G96
         K21E03N KC2021 03 11.36612409 44 43.55 +25 20 35.6          20.44GVEE114I52
         K21E03N KC2021 03 11.36738409 44 43.13 +25 20 47.0          20.41GVEE114I52
         K21E03N KC2021 03 11.36864309 44 42.72 +25 21 00.7          20.03GVEE114I52
         K21E03N KC2021 03 11.36990409 44 42.33 +25 21 12.6          20.54GVEE114I52
         K21E03N 1C2021 03 11.76959 09 43 29.23 +26 37 06.6          20.6 VVEE114033
         K21E03N 1C2021 03 11.77172 09 43 28.48 +26 37 34.8          20.7 VVEE114033
         K21E03N 1C2021 03 11.77291 09 43 28.05 +26 37 50.7          21.0 VVEE114033
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
        Hoegner, U. Laux, F. Ludwig, B. Stecklum.  Measurer B. Stecklum.  1.34-m
        f/3 Schmidt + CCD.
    G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  Measurers E. J. Christensen, G.
        A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
        Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L.
        Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer D. Rankin.  Measurers
        E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
        H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
        Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m reflector +
        CCD.
    
    Orbital elements:
    2021 EN3                                                 Earth MOID = 0.0032 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Pike                    
    M 310.98158              (2000.0)            P               Q                  
    n   0.40178287     Peri.  165.05372     -0.77496116     +0.63199340             
    a   1.8188984      Node    54.14448     -0.58041492     -0.70891189             
    e   0.5069157      Incl.    0.31251     -0.25010740     -0.31309467             
    P   2.45           H   27.33          G   0.15           U   8                  
    Residuals in seconds of arc
    210311 G96 (0.9-  0.6+)   210311 I52  0.0-  0.6+    210311 033  0.0-  0.1+
    210311 G96  0.1-  0.2-    210311 I52  0.1-  0.7-    210311 033  0.1+  0.1-
    210311 G96  0.1+  0.3+    210311 I52  0.1-  0.4+    210311 033  0.0-  0.0-
    210311 G96  0.0+  0.1-    210311 I52  0.2+  0.3-
    
    Ephemeris:
    2021 EN3                 a,e,i = 1.82, 0.51, 0                   q = 0.8969
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 02 09    10 02 39.1 +13 44 08   0.2336  1.2184   172.1     6.4    25.1
    ...
    2021 02 24    09 59 13.1 +15 15 12   0.1238  1.1120   170.9     8.1    23.6
    ...
    2021 03 04    09 55 29.5 +17 19 35   0.07159 1.0595   161.2    17.6    22.6
    ...
    2021 03 10    09 48 51.6 +22 18 52   0.03412 1.0231   151.3    27.8    21.3
    2021 03 11    09 46 14.9 +24 22 15   0.02801 1.0174   148.7    30.5    20.9
    2021 03 12    09 42 07.0 +27 32 30   0.02197 1.0117   145.0    34.2    20.5
    ...
    2021 03 18    22 18 17.1 +05 27 18   0.01688 0.9798    23.9   155.7    28.1
    ...
    2021 03 26    22 05 05.9 -08 43 27   0.06609 0.9442    35.2   142.5    28.5
    ...
    2021 04 10    22 11 49.4 -10 43 45   0.1628  0.9034    49.0   123.2    28.3
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-E114
    


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