• MPC Preparation (Info)

  • MPEC 2021-K40 : 2021 KR

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    M.P.E.C. 2021-K40                                  Issued 2021 May 19, 18:20 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 KR                                 
    
    
    Observations:
         K21K00R* C2021 05 18.30491415 22 34.46 -17 12 48.3          21.46GVEK040V00
         K21K00R  C2021 05 18.30982215 22 34.54 -17 13 37.5          21.63GVEK040V00
         K21K00R  C2021 05 18.31472915 22 34.63 -17 14 26.2          21.48GVEK040V00
         K21K00R  C2021 05 18.31963015 22 34.67 -17 15 15.0                VEK040V00
         K21K00R KC2021 05 18.39219 15 22 36.33 -17 27 17.5          21.6 RoEK040291
         K21K00R KC2021 05 18.39850 15 22 36.54 -17 28 20.4          21.5 RoEK040291
         K21K00R KC2021 05 18.40496 15 22 36.72 -17 29 24.7          21.3 RoEK040291
         K21K00R mC2021 05 19.29312015 23 58.10 -20 10 39.0          21.26GVEK040V00
         K21K00R mC2021 05 19.29855915 23 58.24 -20 11 42.9          21.58GVEK040V00
         K21K00R mC2021 05 19.30398715 23 58.41 -20 12 46.0          21.36GVEK040V00
         K21K00R mC2021 05 19.30940915 23 58.55 -20 13 49.1          21.34GVEK040V00
    
    Observer details:
    291 LPL/Spacewatch II.  Observer R. A. Mastaler.  1.8-m f/2.7 reflector + CCD.
    V00 Kitt Peak-Bok.  Observer H. Groeller.  Measurers M. J. Brucker, E. J.
        Christensen, C. E. Woodward, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
        Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. S.
        McMillan, T. A. Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W.
        Wierzchos.  2.25-m reflector + CCD.
    
    Orbital elements:
    2021 KR                                                  Earth MOID = 0.0289 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Pike                    
    M 256.26749              (2000.0)            P               Q                  
    n   0.52850940     Peri.  229.12695     +0.28038144     +0.95226021             
    a   1.5150754      Node    57.54854     -0.83201537     +0.30384430             
    e   0.3611658      Incl.    8.22872     -0.47868222     +0.02965006             
    P   1.86           H   27.56          G   0.15           U   8                  
    Residuals in seconds of arc
    210518 V00  0.0   0.1+    210518 291  0.1-  0.0     210519 V00  0.1-  0.3-
    210518 V00  0.1-  0.1-    210518 291  0.3+  0.0     210519 V00  0.1+  0.1-
    210518 V00  0.1-  0.0     210518 291  0.0   0.1+    210519 V00  0.3-  0.2+
    210518 V00 (0.8-  0.1-)   210519 V00  0.2+  0.1+
    
    Ephemeris:
    2021 KR                  a,e,i = 1.52, 0.36, 8                   q = 0.9679
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 04 19    15 10 02.1 +03 23 37   0.2209  1.2079   154.9    20.7    25.7
    ...
    2021 05 04    15 15 02.5 +00 07 34   0.1292  1.1320   162.3    15.7    24.2
    ...
    2021 05 12    15 17 45.9 -05 47 21   0.08638 1.0948   167.7    11.3    23.1
    ...
    2021 05 18    15 22 12.6 -16 21 18   0.05760 1.0689   175.0     4.8    21.9
    2021 05 19    15 23 31.5 -19 12 39   0.05323 1.0648   175.4     4.3    21.7
    2021 05 20    15 25 09.3 -22 33 53   0.04905 1.0607   174.3     5.4    21.6
    ...
    2021 05 26    15 57 18.0 -59 03 07   0.03124 1.0378   141.9    37.0    21.6
    ...
    2021 06 03    02 31 50.2 -58 04 53   0.04395 1.0114    84.9    92.6    24.1
    ...
    2021 06 18    03 00 31.4 -29 53 33   0.1091  0.9775    66.4   107.7    26.7
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-K40
    


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