• MPC Preparation (Info)

  • MPEC 2021-C261 : 2021 CN6

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    M.P.E.C. 2021-C261                            Issued 2021 February 12, 19:58 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 CN6                                 
    
    
    Observations:
         K21C06N* C2021 02 11.40013211 28 26.89 -21 10 25.0          19.97GVEC261G96
         K21C06N  C2021 02 11.40533311 28 28.70 -21 11 13.5          19.73GVEC261G96
         K21C06N  C2021 02 11.41052911 28 30.47 -21 12 01.9          19.99GVEC261G96
         K21C06N  C2021 02 11.41573211 28 32.25 -21 12 50.7          20.41GVEC261G96
         K21C06N KC2021 02 11.43409611 28 38.62 -21 15 42.1          19.38GVEC261I52
         K21C06N KC2021 02 11.43508511 28 38.93 -21 15 51.3          19.46GVEC261I52
         K21C06N KC2021 02 11.43607111 28 39.27 -21 16 00.2          19.43GVEC261I52
         K21C06N KC2021 02 11.43705811 28 39.61 -21 16 09.4          19.37GVEC261I52
         K21C06N |C2021 02 12.17197 11 33 36.71 -23 11 44.2          19.4 GVEC261807
         K21C06N |C2021 02 12.17275 11 33 37.01 -23 11 52.0          19.4 GVEC261807
         K21C06N |C2021 02 12.17590 11 33 38.21 -23 12 23.2          19.4 GVEC261807
         K21C06N |C2021 02 12.17669 11 33 38.51 -23 12 31.1          19.5 GVEC261807
         K21C06N |C2021 02 12.17826 11 33 39.11 -23 12 46.6          19.6 GVEC261807
         K21C06N mC2021 02 12.29692911 34 27.95 -23 33 47.2          21.12GVEC261I52
         K21C06N mC2021 02 12.29734811 34 28.05 -23 33 51.4                VEC261I52
         K21C06N mC2021 02 12.29776911 34 28.25 -23 33 55.2          19.79GVEC261I52
         K21C06N mC2021 02 12.29818911 34 28.39 -23 33 59.0          20.73GVEC261I52
         K21C06N KC2021 02 12.64432211 36 50.53 -24 29 25.9          20.4 GVEC261474
         K21C06N KC2021 02 12.64613911 36 51.25 -24 29 44.2          20.3 GVEC261474
         K21C06N KC2021 02 12.64795711 36 51.98 -24 30 02.5          20.5 GVEC261474
         K21C06N KC2021 02 12.64877511 36 52.29 -24 30 10.5          20.4 GVEC261474
    
    Observer details:
    474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore, P. M.
        Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
    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. 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.  1.5-m reflector + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  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.  1.0-m
        reflector + CCD.
    
    Orbital elements:
    2021 CN6                                                 Earth MOID = 0.0499 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Pike                    
    M 296.03407              (2000.0)            P               Q                  
    n   0.59990722     Peri.  261.77562     -0.90966541     +0.40942106             
    a   1.3923443      Node   302.36684     -0.34101872     -0.83228252             
    e   0.3345027      Incl.    4.74572     -0.23709717     -0.37373816             
    P   1.64           H   23.74          G   0.15           U   8                  
    Residuals in seconds of arc
    210211 G96  0.0-  0.0-    210211 I52  0.2-  0.1+    210212 I52  0.4-  0.2-
    210211 G96  0.3+  0.0+    210212 807  0.1+  0.0-    210212 I52  0.1+  0.2+
    210211 G96  0.0+  0.2+    210212 807  0.1+  0.1-    210212 I52  0.2-  0.6+
    210211 G96  0.1-  0.1-    210212 807  0.1+  0.0-    210212 474  0.0-  0.1+
    210211 I52  0.3+  0.2-    210212 807  0.1+  0.1-    210212 474  0.0-  0.1-
    210211 I52  0.2-  0.2-    210212 807  0.1+  0.1-    210212 474  0.0+  0.2-
    210211 I52  0.2-  0.1+    210212 I52  0.5+  0.2-    210212 474  0.2-  0.0-
    
    Ephemeris:
    2021 CN6                 a,e,i = 1.39, 0.33, 5                   q = 0.9266
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 01 13    10 05 17.5 +12 48 50   0.2524  1.1967   143.9    29.0    22.4
    ...
    2021 01 28    10 33 44.5 +02 51 03   0.1561  1.1208   148.5    27.3    21.2
    ...
    2021 02 05    10 57 22.5 -07 34 01   0.1150  1.0824   145.3    31.3    20.6
    ...
    2021 02 11    11 25 57.3 -20 07 24   0.09090 1.0550   136.7    39.9    20.2
    2021 02 12    11 32 22.2 -22 44 04   0.08767 1.0505   134.6    42.0    20.2
    2021 02 13    11 39 27.5 -25 29 52   0.08472 1.0462   132.3    44.3    20.2
    ...
    2021 02 19    12 43 34.0 -44 18 29   0.07382 1.0211   114.3    62.0    20.3
    ...
    2021 02 27    15 50 43.6 -62 04 25   0.07989 0.9910    88.2    87.2    21.3
    ...
    2021 03 14    20 02 31.6 -51 22 41   0.1308  0.9482    65.9   106.9    23.2
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-C261
    


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