• Processing (Info)

  • MPEC 2021-D58 : 2021 DJ1

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.


    Read MPEC 2021-D57 Read MPEC 2021-D59


    M.P.E.C. 2021-D58                             Issued 2021 February 19, 15:41 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 DJ1                                 
    
    
    Observations:
         K21D01J* C2021 02 18.43617912 19 30.66 +25 13 42.8          21.08GVED058G96
         K21D01J  C2021 02 18.44133512 19 27.27 +25 13 23.6          20.81GVED058G96
         K21D01J  C2021 02 18.44649412 19 23.99 +25 13 04.5          21.18GVED058G96
         K21D01J KC2021 02 18.54524112 18 23.42 +25 06 40.2          20.75GVED058G96
         K21D01J KC2021 02 18.54686412 18 22.40 +25 06 34.0          20.65GVED058G96
         K21D01J KC2021 02 18.54848612 18 21.45 +25 06 27.7          20.79GVED058G96
         K21D01J KC2021 02 19.31866712 13 05.51 +24 26 25.8          20.88GVED058I52
         K21D01J KC2021 02 19.32202712 13 03.77 +24 26 16.8          20.63GVED058I52
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observer 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.  1.5-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 DJ1                                                 Earth MOID = 0.0057 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Pike                    
    M 349.61216              (2000.0)            P               Q                  
    n   0.71155609     Peri.  315.61539     -0.03317813     -0.99897725             
    a   1.2425960      Node   136.25855     +0.92889549     -0.04216478             
    e   0.2705801      Incl.    2.54650     +0.36885278     +0.01632759             
    P   1.39           H   27.68          G   0.15           U   9                  
    Residuals in seconds of arc
    210218 G96  0.4+  0.2+    210218 G96  0.8+  0.4-    210219 I52  0.2+  0.2+
    210218 G96  0.5-  0.0-    210218 G96  0.3-  0.0-    210219 I52  0.2-  0.2-
    210218 G96  0.0-  0.0-    210218 G96  0.5-  0.2+
    
    Ephemeris:
    2021 DJ1                 a,e,i = 1.24, 0.27, 3                   q = 0.9064
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 01 20    23 04 46.3 -16 22 50   0.08246 0.9243    42.0   134.6    28.3
    ...
    2021 02 04    22 42 25.0 -11 06 05   0.02763 0.9604    23.0   156.4    29.7
    ...
    2021 02 12    17 16 24.1 +34 06 22   0.0065040.9859    79.2   100.5    20.4
    ...
    2021 02 18    12 23 30.7 +25 41 36   0.02336 1.0074   144.6    34.6    21.0
    2021 02 19    12 15 09.5 +24 43 23   0.02679 1.0112   147.4    31.8    21.2
    2021 02 20    12 08 43.3 +23 56 45   0.03025 1.0149   149.7    29.5    21.4
    ...
    2021 02 26    11 48 04.5 +21 16 32   0.05159 1.0383   158.7    20.3    22.3
    ...
    2021 03 06    11 36 17.2 +19 33 26   0.08168 1.0709   164.4    14.4    23.2
    ...
    2021 03 21    11 26 57.8 +17 14 55   0.1460  1.1349   160.7    16.9    24.7
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-D58
    


    Read MPEC 2021-D57 Read MPEC 2021-D59


    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)