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  • MPEC 2024-D100 : 2021 CT6

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    M.P.E.C. 2024-D100                            Issued 2024 February 21, 14:07 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets, routine data on comets and natural satellites,
             and occasional editorial announcements.  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 CT6                                 
    
    
                               Revision to MPEC 2021-C266                           
    
    Additional Observations:
         K21C06T 1C2024 02 17.27261310 54 37.688+39 17 38.94         21.27GVED100G96
         K21C06T 1C2024 02 17.27829710 54 37.418+39 18 02.20         21.83GVED100G96
         K21C06T 1C2024 02 17.28398410 54 36.994+39 18 26.93         20.44GVED100G96
         K21C06T 1C2024 02 17.28967110 54 36.702+39 18 51.66         21.11GVED100G96
         K21C06T KC2024 02 19.09372 10 53 11.17 +41 17 38.7          21.5 GVED100204
         K21C06T KC2024 02 19.12569 10 53 09.24 +41 19 33.9                VED100204
    
    Observer details:
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
        CMO.
    G96 Mt. Lemmon Survey.  Observers T. Beuden, J. K. Hogan.  Measurers T.
        Beuden, V. F. Carvajal, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A.
        D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J.
        Leonard, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m
        reflector + 10K CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    240217 G96 0.57+ 0.14+    240219 204 0.55+ 0.14+    MPO606169   +0.13 days
    
    Orbital elements:
    2021 CT6                                                 Earth MOID = 0.0936 AU
    Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Veres                   
    M  81.01690              (2000.0)            P               Q                  
    n   0.66296722     Peri.  291.04906     +0.36288714     -0.89761342             
    a   1.3025908      Node   135.02226     +0.93081795     +0.33665000             
    e   0.2741315      Incl.   20.73109     +0.04348409     +0.28452932             
    P   1.49           H   23.40          G   0.15           U   2                  
    Residuals in seconds of arc
    210211 G96  0.1+  0.1+    210213 033  0.1+  0.1-    210219 V06  0.0   0.0
    210211 G96  0.0   0.3+    210213 033  0.3+  0.1+    240217 G96  0.6-  0.5+
    210211 G96  0.1-  0.1-    210213 I52  0.8+  0.4+    240217 G96  0.4+  0.7-
    210211 I52  0.0   0.1-    210213 I52  0.5-  0.4-    240217 G96  0.4-  0.4-
    210211 I52  0.2-  0.4-    210213 I52  0.2+  0.2+    240217 G96  0.5+  0.1-
    210212 I52  0.2+  0.1-    210213 I52  0.5-  0.5+    240219 204  0.0   0.4+
    210212 I52  0.2+  0.2-    210219 V06  0.0   0.1-    240219 204  0.0   0.3-
    210212 I52  0.1-  0.3-    210219 V06  0.0   0.1+
    210212 I52  0.2-  0.0     210219 V06  0.2-  0.0
    
    Ephemeris:
    2021 CT6                 a,e,i = 1.30, 0.27, 21                  q = 0.9455
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2024 01 22    10 56 13.3 -23 35 54   0.1309  1.0577   121.1    52.8    21.0
    ...
    2024 02 06    11 00 50.2 +19 26 33   0.1428  1.1167   154.6    22.2    20.5
    ...
    2024 02 14    10 56 56.4 +34 57 09   0.1791  1.1501   153.3    22.7    21.1
    ...
    2024 02 20    10 52 29.8 +42 11 36   0.2146  1.1757   147.8    26.7    21.6
    2024 02 21    10 51 42.4 +43 06 53   0.2210  1.1799   146.8    27.3    21.7
    2024 02 22    10 50 54.8 +43 58 01   0.2276  1.1842   145.9    28.0    21.8
    ...
    2024 02 28    10 46 16.8 +47 50 42   0.2689  1.2100   140.5    31.4    22.3
    ...
    2024 03 07    10 41 16.9 +50 33 49   0.3285  1.2443   134.3    34.8    22.9
    ...
    2024 03 22    10 38 48.4 +51 14 05   0.4497  1.3073   125.0    38.6    23.8
    
    A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-D100
    


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