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  • MPEC 2020-K166 : 2020 KJ4

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    M.P.E.C. 2020-K166                                 Issued 2020 May 25, 22:08 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
    
                                    2020 KJ4                                 
    
    
    Observations:
         K20K04J  C2020 05 21.44234916 23 30.999-05 10 18.61         21.9 GVEK166F51
         K20K04J  C2020 05 21.45510416 23 30.028-05 10 14.75         21.9 GVEK166F51
         K20K04J  C2020 05 21.46785316 23 29.066-05 10 10.34         22.3 GVEK166F51
         K20K04J  C2020 05 21.48063416 23 28.122-05 10 06.12         21.3 GVEK166F51
         K20K04J* C2020 05 24.32710 16 32 34.36 -04 52 09.8          20.8 GVEK166G96
         K20K04J  C2020 05 24.33231 16 32 34.55 -04 52 06.5          20.8 GVEK166G96
         K20K04J  C2020 05 24.34271 16 32 34.80 -04 51 59.7          21.0 GVEK166G96
         K20K04J  C2020 05 24.40260 16 32 37.35 -04 51 16.5          21.0 GVEK166I52
         K20K04J  C2020 05 24.40684 16 32 37.60 -04 51 13.2          20.1 GVEK166I52
         K20K04J  C2020 05 24.41108 16 32 37.91 -04 51 09.0          20.8 GVEK166I52
         K20K04J  C2020 05 24.42941 16 32 39.36 -04 50 53.6          20.9 GVEK166I52
         K20K04J  C2020 05 24.43733 16 32 40.16 -04 50 46.4          20.7 GVEK166I52
         K20K04J  C2020 05 24.44114 16 32 40.51 -04 50 43.6          20.8 GVEK166I52
         K20K04J  C2020 05 25.32723 16 39 22.94 -04 39 36.7          20.7 GVEK166G96
         K20K04J  C2020 05 25.32835 16 39 23.10 -04 39 35.6          20.7 GVEK166G96
         K20K04J  C2020 05 25.32938 16 39 23.27 -04 39 34.6          20.6 GVEK166G96
         K20K04J  C2020 05 25.33034 16 39 23.42 -04 39 33.4          20.2 GVEK166G96
         K20K04J  C2020 05 25.42547916 40 28.716-04 34 49.78         20.65wUEK166F52
         K20K04J  C2020 05 25.43678816 40 30.362-04 34 38.32         20.61wUEK166F52
         K20K04J  C2020 05 25.44809116 40 31.993-04 34 26.34         20.35wUEK166F52
         K20K04J  C2020 05 25.78082 16 44 00.98 -04 34 08.8          19.9 GVEK166N88
         K20K04J  C2020 05 25.78135 16 44 01.19 -04 34 08.9          20.3 GVEK166N88
         K20K04J  C2020 05 25.78188 16 44 01.34 -04 34 07.8          20.1 GVEK166N88
         K20K04J  C2020 05 25.78240 16 44 01.48 -04 34 07.8          20.0 GVEK166N88
         K20K04J KC2020 05 25.86228616 45 45.40 -04 32 14.6          18.8 GVEK166K63
         K20K04J KC2020 05 25.86640616 45 47.50 -04 32 10.8          19.5 GVEK166K63
         K20K04J KC2020 05 25.86942716 45 49.02 -04 32 07.5          19.8 GVEK166K63
         K20K04J KC2020 05 25.89232 16 46 08.26 -04 31 41.8          19.5 GUEK166I93
         K20K04J KC2020 05 25.89866 16 46 11.65 -04 31 37.6          19.5 GUEK166I93
         K20K04J KC2020 05 25.90519 16 46 15.05 -04 31 31.1          20.1 GUEK166I93
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
        Schultz, M. Willman.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
        Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Dukes, T. Lowe, A.
        Schultz, M. Willman.  Measurers K. Chambers, S. Chastel, T. de Boer, L.
        Denneau, J. Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y.
        Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  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.  1.5-m reflector + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  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.  1.0-m reflector +
        CCD.
    I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
    K63 G. Pascoli Observatory, Castelvecchio Pascoli.  Observer R. Bacci.  0.4-m
        f/3.2 Newtonian reflector + CCD.
    N88 Xingming Observatory #3, Nanshan.  Observer X. Gao.  Measurer Q.-Z. Ye.
        0.6-m f/8 Ritchey-Chretien + CCD.
    
    Orbital elements:
    2020 KJ4                                                 Earth MOID = 0.0003 AU
    Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
    M 263.94167              (2000.0)            P               Q
    n   1.02154336     Peri.  293.16373     +0.99877506     -0.01513721
    a   0.9764084      Node    67.73065     +0.03335231     +0.90922777
    e   0.1362500      Incl.    2.91794     -0.03655125     +0.41602372
    P   0.96           H   29.9           G   0.15           U   7
    Residuals in seconds of arc
    200521 F51  0.1+  0.1+    200524 I52  0.2-  0.2+    200525 N88  0.1+  0.4+
    200521 F51  0.0   0.0     200524 I52  0.5+  0.5+    200525 N88  0.5+  0.4-
    200521 F51  0.0   0.1+    200524 I52  0.1-  0.0     200525 N88  0.1+  0.1+
    200521 F51  0.0   0.2-    200525 G96  0.2+  0.1+    200525 N88  0.5-  0.6-
    200524 G96  0.5-  0.3-    200525 G96  0.1-  0.1+    200525 K63  0.0   0.3+
    200524 G96  0.3+  0.2-    200525 G96  0.0   0.1+    200525 K63  0.0   0.1+
    200524 G96  0.3-  0.0     200525 G96  0.0   0.3+    200525 K63  0.0   0.4+
    200524 I52  0.1+  0.4-    200525 F52  0.1+  0.1+    200525 I93  1.1-  1.3+
    200524 I52  0.2-  0.5-    200525 F52  0.1+  0.0     200525 I93  0.1+  0.8-
    200524 I52  0.1+  0.3+    200525 F52  0.2+  0.0     200525 I93  0.6+  0.9-
    
    Ephemeris:
    2020 KJ4                 a,e,i = 0.98, 0.14, 3                   q = 0.8434
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 04 25    16 05 11.9 -07 00 44   0.09190 1.0875   151.2    26.5    26.1
    ...
    2020 05 10    16 13 33.2 -05 55 10   0.04825 1.0553   160.2    18.9    24.4
    ...
    2020 05 18    16 18 52.5 -05 23 12   0.02706 1.0375   163.0    16.6    23.0
    ...
    2020 05 24    16 30 59.5 -04 47 41   0.01173 1.0240   162.7    17.1    21.2
    2020 05 25    16 36 44.8 -04 34 49   0.0092061.0217   162.2    17.6    20.7
    2020 05 26    16 46 50.0 -04 13 10   0.0066841.0194   161.1    18.8    20.0
    ...
    2020 06 01    04 41 05.0 +04 23 54   0.0089191.0056    17.7   162.2    31.4
    ...
    2020 06 09    04 59 45.0 +04 02 46   0.02933 0.9875    19.0   160.4    33.3
    ...
    2020 06 24    05 06 23.5 +05 23 10   0.07055 0.9524    23.9   154.4    33.4
    
    M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-K166
    


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