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  • MPEC 2021-B98 : 2021 BN2

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    M.P.E.C. 2021-B98                              Issued 2021 January 20, 17:22 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 BN2                                 
    
    
    Observations:
         K21B02N* C2021 01 18.51793011 16 41.39 +21 39 10.4          21.90GVEB098G96
         K21B02N  C2021 01 18.52310011 16 41.84 +21 38 44.0          22.55GVEB098G96
         K21B02N  C2021 01 18.52828311 16 42.23 +21 38 17.9          22.46GVEB098G96
         K21B02N  C2021 01 18.53346011 16 42.63 +21 37 50.9          21.65GVEB098G96
         K21B02N |C2021 01 19.35272 11 18 04.45 +20 29 05.2          22.1 GVEB098807
         K21B02N |C2021 01 19.35867 11 18 04.87 +20 28 34.0          22.4 GVEB098807
         K21B02N |C2021 01 19.36463 11 18 05.26 +20 28 03.4          22.0 GVEB098807
         K21B02N KC2021 01 20.36416811 19 40.29 +18 58 52.3          22.4 VuEB098H21
         K21B02N KC2021 01 20.36999311 19 40.70 +18 58 21.1          22.2 VuEB098H21
         K21B02N KC2021 01 20.37266311 19 40.85 +18 58 06.7          22.1 VuEB098H21
    
    Observer details:
    807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
        1.00-m f/10.0 astrograph + 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.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
        astrograph + CCD.
    
    Orbital elements:
    2021 BN2                                                 Earth MOID = 0.0829 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Pike                    
    M 329.94611              (2000.0)            P               Q                  
    n   0.59103634     Peri.  187.02105     -0.77392076     -0.62169271             
    a   1.4062415      Node   313.79859     +0.58884727     -0.63636979             
    e   0.2404624      Incl.    9.61868     +0.23303550     -0.45665268             
    P   1.67           H   25.10          G   0.15           U   8                  
    Residuals in seconds of arc
    210118 G96  0.6-  0.1-    210119 807  0.0+  0.0+    210120 H21  0.2+  0.0+
    210118 G96  0.2+  0.1-    210119 807  0.1+  0.2-    210120 H21  0.2-  0.1-
    210118 G96  0.1+  0.3+    210119 807  0.2-  0.2+
    210118 G96  0.2+  0.2-    210120 H21  0.0-  0.1+
    
    Ephemeris:
    2021 BN2                 a,e,i = 1.41, 0.24, 10                  q = 1.0681
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 12 21    10 02 26.9 +45 14 54   0.2253  1.1318   126.3    44.5    23.8
    ...
    2021 01 05    10 47 44.2 +36 28 22   0.1678  1.0987   130.0    43.3    23.1
    ...
    2021 01 13    11 06 27.0 +28 40 36   0.1429  1.0855   132.7    41.8    22.7
    ...
    2021 01 19    11 17 30.6 +20 58 36   0.1278  1.0779   134.9    40.3    22.4
    2021 01 20    11 19 06.0 +19 31 42   0.1257  1.0769   135.2    40.0    22.3
    2021 01 21    11 20 37.2 +18 02 00   0.1236  1.0758   135.6    39.8    22.3
    ...
    2021 01 27    11 28 12.9 +08 09 48   0.1138  1.0711   137.3    38.6    22.1
    ...
    2021 02 04    11 34 15.2 -06 32 50   0.1081  1.0682   137.7    38.4    22.0
    ...
    2021 02 19    11 33 00.1 -31 11 58   0.1194  1.0734   132.9    42.4    22.3
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-B98
    


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