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  • MPEC 2021-J162 : 2021 JD4

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    M.P.E.C. 2021-J162                                 Issued 2021 May 11, 19:19 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 JD4                                 
    
    
    Observations:
         K21J04D* C2021 05 09.51519416 06 08.478-02 07 15.78         20.76wUEJ162F51
         K21J04D  C2021 05 09.52924416 06 10.393-02 05 12.34         20.74wUEJ162F51
         K21J04D  C2021 05 09.54324916 06 12.323-02 03 08.62         20.22wUEJ162F51
         K21J04D hC2021 05 09.99530716 07 25.31 -00 57 22.3          20.5 GVEJ162L01
         K21J04D IC2021 05 10.00513016 07 26.70 -00 55 57.2          20.7 GVEJ162L01
         K21J04D hC2021 05 10.00860116 07 27.15 -00 55 26.6          20.4 GVEJ162L01
         K21J04D hC2021 05 10.01098716 07 27.49 -00 55 05.5          20.7 GVEJ162L01
         K21J04D hC2021 05 10.03088216 07 30.31 -00 52 11.9          20.5 GVEJ162L01
         K21J04D hC2021 05 10.03218116 07 30.46 -00 52 00.7          20.5 GVEJ162L01
         K21J04D KC2021 05 10.29435316 08 12.91 -00 13 49.9          20.28GVEJ162I52
         K21J04D KC2021 05 10.29561316 08 13.09 -00 13 38.9          19.94GVEJ162I52
         K21J04D KC2021 05 10.29782416 08 13.40 -00 13 19.6          20.19GVEJ162I52
         K21J04D KC2021 05 10.29908416 08 13.57 -00 13 09.0          20.37GVEJ162I52
         K21J04D  C2021 05 10.34505816 08 19.55 -00 06 31.5          20.4 GVEJ162H01
         K21J04D  C2021 05 10.35148016 08 20.40 -00 05 35.9          20.5 GVEJ162H01
         K21J04D  C2021 05 10.36003516 08 21.56 -00 04 21.8          20.4 GVEJ162H01
         K21J04D  C2021 05 10.36595216 08 22.35 -00 03 30.6          20.1 GVEJ162H01
         K21J04D  C2021 05 10.37706616 08 24.02 -00 01 52.4          20.38GVEJ162G96
         K21J04D  C2021 05 10.38225116 08 24.72 -00 01 07.9          20.22GVEJ162G96
         K21J04D  C2021 05 10.38745316 08 25.42 -00 00 22.3                VEJ162G96
         K21J04D  C2021 05 10.39265016 08 26.13 +00 00 22.4                VEJ162G96
         K21J04D  C2021 05 11.27674316 10 42.94 +02 06 26.6          20.2 GVEJ162H01
         K21J04D  C2021 05 11.28017016 10 43.38 +02 06 55.6          20.3 GVEJ162H01
         K21J04D  C2021 05 11.29228516 10 44.97 +02 08 38.0          20.4 GVEJ162H01
         K21J04D  C2021 05 11.29746116 10 45.65 +02 09 21.9          20.7 GVEJ162H01
         K21J04D KC2021 05 11.40365516 10 59.63 +02 24 19.3          20.69GVEJ162I52
         K21J04D KC2021 05 11.40491516 10 59.78 +02 24 30.2          20.56GVEJ162I52
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, 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 H. Groeller.  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.
    H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
        Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers G. J. Leonard, T. A.
        Pruyne.  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.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    
    Orbital elements:
    2021 JD4                                                 Earth MOID = 0.1418 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
    M 296.33913              (2000.0)            P               Q                  
    n   0.43802885     Peri.    8.20566     -0.61849680     +0.74477987             
    a   1.7171210      Node   224.07213     -0.73985002     -0.65936189             
    e   0.3304476      Incl.   21.11132     -0.26473319     +0.10268808             
    P   2.25           H   23.47          G   0.15           U   9                  
    Residuals in seconds of arc
    210509 F51  0.1+  0.3+    210510 I52  0.2-  0.3-    210510 G96  0.2-  0.0
    210509 F51  0.0   0.2-    210510 I52  0.0   0.2-    210510 G96  0.2-  0.6+
    210509 F51  0.0   0.1-    210510 I52  0.1+  0.1-    210510 G96  0.1-  0.3+
    210509 L01  0.3-  0.4+    210510 I52  0.2+  0.4-    210511 H01  0.1+  0.1-
    210510 L01  0.0   0.3-    210510 H01  0.0   0.1-    210511 H01  0.0   0.0
    210510 L01  0.5-  0.0     210510 H01  0.0   0.2-    210511 H01  0.0   0.1-
    210510 L01  0.4-  0.3+    210510 H01  0.0   0.1-    210511 H01  0.1+  0.0
    210510 L01  0.3+  0.2+    210510 H01  0.0   0.2-    210511 I52  0.3+  0.1-
    210510 L01  0.1-  0.0     210510 G96  0.3-  0.4+    210511 I52  0.0   0.2+
    
    Ephemeris:
    2021 JD4                 a,e,i = 1.72, 0.33, 21                  q = 1.1497
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 04 11    14 23 48.7 -52 09 41   0.2415  1.1828   134.0    37.5    22.3
    ...
    2021 04 26    15 22 37.3 -33 53 43   0.1664  1.1583   154.2    22.2    21.0
    ...
    2021 05 04    15 50 11.8 -15 57 12   0.1483  1.1517   164.1    13.9    20.4
    ...
    2021 05 10    16 07 25.9 -00 56 06   0.1497  1.1497   157.8    19.4    20.6
    2021 05 11    16 09 59.9 +01 27 42   0.1512  1.1497   155.9    21.0    20.7
    2021 05 12    16 12 28.9 +03 47 41   0.1530  1.1497   154.0    22.7    20.8
    ...
    2021 05 18    16 25 41.1 +16 03 23   0.1701  1.1513   142.6    32.2    21.3
    ...
    2021 05 26    16 39 22.7 +27 21 52   0.2043  1.1575   131.1    41.3    22.0
    ...
    2021 06 10    16 56 36.3 +37 22 49   0.2839  1.1812   119.5    48.4    22.9
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-J162
    


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