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  • MPEC 2021-E126 : 2021 DQ2

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    M.P.E.C. 2021-E126                               Issued 2021 March 12, 21:18 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 DQ2                                 
    
    
    Observations:
         K21D02Q* C2021 02 18.39034611 13 39.07 +25 12 04.0          21.65GVEE126G96
         K21D02Q  C2021 02 18.39546211 13 38.83 +25 12 05.7          21.12GVEE126G96
         K21D02Q  C2021 02 18.40058811 13 38.47 +25 12 07.5          21.01GVEE126G96
         K21D02Q  C2021 02 18.40571611 13 38.27 +25 12 09.9          21.63GVEE126G96
         K21D02Q  C2021 03 11.24316910 45 50.09 +25 57 44.0          21.02GVEE126G96
         K21D02Q  C2021 03 11.24832710 45 49.47 +25 57 42.5          20.49GVEE126G96
         K21D02Q  C2021 03 11.25347810 45 48.87 +25 57 41.4          20.36GVEE126G96
         K21D02Q  C2021 03 11.25861910 45 48.27 +25 57 40.4          20.66GVEE126G96
         K21D02Q KC2021 03 11.39560110 45 32.14 +25 57 04.6          20.52GVEE126I52
         K21D02Q KC2021 03 11.39794010 45 31.90 +25 57 04.0          20.24GVEE126I52
         K21D02Q KC2021 03 11.93804410 44 34.82 +25 54 36.3          19.9 GVEE126J95
         K21D02Q KC2021 03 11.94216110 44 34.37 +25 54 34.8          20.1 GVEE126J95
         K21D02Q KC2021 03 11.94629510 44 33.87 +25 54 33.5          20.1 GVEE126J95
         K21D02Q KC2021 03 11.95140710 44 33.28 +25 54 32.2          20.6 GVEE126J95
         K21D02Q 1C2021 03 12.83182 10 42 57.69 +25 50 07.2          20.6 VVEE126033
         K21D02Q 1C2021 03 12.83367 10 42 57.49 +25 50 06.5          21.0 VVEE126033
         K21D02Q 1C2021 03 12.83551 10 42 57.30 +25 50 06.1          20.8 VVEE126033
    
    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.  Observers T. A. Pruyne, 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.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3 Schmidt-Cassegrain
        + CCD.
    
    Orbital elements:
    2021 DQ2                                                 Earth MOID = 0.0928 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M 304.71516              (2000.0)            P               Q
    n   0.35930810     Peri.  215.65019     -0.63142248     +0.77441788
    a   1.9595577      Node    15.32422     -0.67198489     -0.52086036
    e   0.4537910      Incl.    8.65755     -0.38696506     -0.35913984
    P   2.74           H   21.7           G   0.15           U   6
    Residuals in seconds of arc
    210218 G96  0.1-  0.1-    210311 G96  0.2+  0.0     210311 J95  0.1-  0.3-
    210218 G96  0.4+  0.2-    210311 G96  0.3+  0.2+    210311 J95  0.1-  0.2-
    210218 G96  0.7-  0.2-    210311 I52  0.2-  0.0     210312 033  0.0   0.2+
    210218 G96  0.3+  0.5+    210311 I52  0.2+  0.0     210312 033  0.2+  0.0
    210311 G96  0.3+  0.3+    210311 J95  0.2-  0.3+    210312 033  0.5+  0.2+
    210311 G96  0.1+  0.1-    210311 J95  0.1+  0.1-
    
    Ephemeris:
    2021 DQ2                 a,e,i = 1.96, 0.45, 9                   q = 1.0703
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 02 10    11 18 09.8 +24 19 04   0.5305  1.4810   153.6    17.2    22.1
    ...
    2021 02 25    11 07 16.7 +25 46 53   0.4143  1.3888   161.5    13.1    21.3
    ...
    2021 03 05    10 56 21.9 +26 07 53   0.3657  1.3412   160.0    14.7    21.0
    ...
    2021 03 11    10 46 15.8 +25 58 44   0.3351  1.3066   156.0    18.0    20.8
    2021 03 12    10 44 27.9 +25 54 31   0.3304  1.3010   155.2    18.7    20.8
    2021 03 13    10 42 38.5 +25 49 25   0.3259  1.2953   154.3    19.4    20.8
    ...
    2021 03 19    10 31 25.8 +24 59 05   0.3012  1.2624   148.6    24.3    20.7
    ...
    2021 03 27    10 16 53.2 +22 52 59   0.2741  1.2209   140.2    31.6    20.7
    ...
    2021 04 11    09 56 28.2 +15 39 51   0.2361  1.1531   124.7    45.6    20.6
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-E126
    


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