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  • MPEC 2021-C316 : 2021 CR8

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    M.P.E.C. 2021-C316                            Issued 2021 February 15, 07:33 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 CR8                                 
    
    
    Observations:
         K21C08R* C2021 02 12.29188006 28 23.657+44 47 32.23         21.92wUEC316F51
         K21C08R  C2021 02 12.30462606 28 21.585+44 46 45.88         21.55wUEC316F51
         K21C08R  C2021 02 12.31743306 28 19.463+44 45 59.18         22.06wUEC316F51
         K21C08R  C2021 02 12.33020106 28 17.377+44 45 12.46         22.06wUEC316F51
         K21C08R ^C2021 02 13.25449506 26 02.519+43 48 10.15         21.80GVEC316568
         K21C08R ^C2021 02 13.25586206 26 02.306+43 48 05.05         21.76GVEC316568
         K21C08R ^C2021 02 13.25684106 26 02.155+43 48 01.39         21.75GVEC316568
         K21C08R 1C2021 02 13.82338 06 24 41.62 +43 11 57.2          22.4 VVEC316033
         K21C08R 1C2021 02 13.82696 06 24 41.08 +43 11 43.7          22.2 VVEC316033
         K21C08R 1C2021 02 13.83055 06 24 40.54 +43 11 30.0          22.0 VVEC316033
         K21C08R IC2021 02 14.76430706 22 34.48 +42 10 57.5          21.8 GVEC316L01
         K21C08R pC2021 02 14.77367206 22 33.20 +42 10 20.9          22.0 GVEC316L01
         K21C08R pC2021 02 14.79632406 22 30.00 +42 08 52.2          22.0 GVEC316L01
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
        Hoegner, B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
    568 Mauna Kea.  Observers R. Wainscoat, C. Cunningham, H. Flewelling.
        Measurers R. Weryk, R. Wainscoat.  3.6-m Canada-France-Hawaii Telescope +
        CCD.
    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.
    L01 Visnjan Observatory, Tican.  Observers K. Korlevic, D. Pujagic, V. Dobos.
        Measurer K. Korlevic.  1.0-m f/2.9 reflector + CCD.
    
    Orbital elements:
    2021 CR8                                                 Earth MOID = 0.1196 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
    M 333.79146              (2000.0)            P               Q                  
    n   0.23183956     Peri.  224.15830     -0.95102220     +0.20543306             
    a   2.6242851      Node   325.62843     +0.00359927     -0.73981797             
    e   0.6138020      Incl.   24.15103     -0.30910163     -0.64067670             
    P   4.25           H   22.27          G   0.15           U   9                  
    Residuals in seconds of arc
    210212 F51  0.1-  0.1+    210213 568  0.0+  0.0+    210214 L01  0.4-  0.1-
    210212 F51  0.1+  0.0+    210213 568  0.0+  0.0+    210214 L01  0.0+  0.0-
    210212 F51  0.1-  0.0+    210213 033  0.0-  0.3-    210214 L01  0.1+  0.4+
    210212 F51  0.0-  0.1-    210213 033  0.1-  0.1-
    210213 568  0.0+  0.0+    210213 033  0.2-  0.1-
    
    Ephemeris:
    2021 CR8                 a,e,i = 2.62, 0.61, 24                  q = 1.0135
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 01 16    08 03 49.3 +58 57 24   0.5475  1.4545   142.0    24.6    22.9
    ...
    2021 01 31    07 07 40.0 +54 23 36   0.4307  1.3359   137.8    29.7    22.4
    ...
    2021 02 08    06 40 17.9 +48 47 25   0.3830  1.2758   132.2    34.9    22.2
    ...
    2021 02 14    06 24 17.2 +43 00 45   0.3543  1.2327   126.8    39.9    22.1
    2021 02 15    06 22 03.1 +41 55 29   0.3501  1.2258   125.8    40.8    22.0
    2021 02 16    06 19 56.5 +40 48 11   0.3461  1.2189   124.8    41.7    22.0
    ...
    2021 02 22    06 09 48.9 +33 25 14   0.3258  1.1791   118.3    47.6    22.0
    ...
    2021 03 02    06 02 14.2 +22 11 05   0.3087  1.1307   109.2    55.9    22.0
    ...
    2021 03 17    06 00 41.7 -00 32 52   0.3062  1.0589    93.5    69.7    22.3
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-C316
    


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