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  • MPEC 2021-S61 : 2006 SF7

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    M.P.E.C. 2021-S61                            Issued 2021 September 22, 15:32 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
    
                                    2006 SF7                                 
    
    
                               Revision to MPEC 2006-S23                            
    
    Additional Observations:
         K06S07F  C2021 09 16.44265304 25 50.67 +20 25 12.0          20.44GVES061G96
         K06S07F  C2021 09 16.44724804 25 53.13 +20 24 30.9                VES061G96
         K06S07F  C2021 09 16.45185004 25 55.59 +20 23 49.6          20.49GVES061G96
         K06S07F  C2021 09 16.45900904 25 59.40 +20 22 44.8          20.54GVES061G96
         K06S07F mC2021 09 16.50272204 26 22.81 +20 16 08.3          20.27GVES061G96
         K06S07F mC2021 09 16.50403504 26 23.48 +20 15 56.2          20.68GVES061G96
         K06S07F mC2021 09 16.50450404 26 23.76 +20 15 52.1          20.68GVES061G96
         K06S07F mC2021 09 18.42349704 44 34.21 +15 05 45.7          19.75GVES061G96
         K06S07F mC2021 09 18.42391004 44 34.42 +15 05 41.5          19.88GVES061G96
         K06S07F mC2021 09 18.42432204 44 34.65 +15 05 37.5          20.03GVES061G96
         K06S07F mC2021 09 18.42473404 44 34.86 +15 05 33.7                VES061G96
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  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.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
    210916 G96   51-   18-    210918 G96   50-   13-    MPO111229   -50.0 days
    
    Orbital elements:
    2006 SF7                                                 Earth MOID = 0.0420 AU
    Epoch 2021 July 5.0 TT = JDT 2459400.5                  Bell                    
    M 213.46699              (2000.0)            P               Q                  
    n   0.92063055     Peri.  283.80704     -0.24562525     -0.96935932             
    a   1.0465158      Node   180.45263     +0.96917824     -0.24564291             
    e   0.2132116      Incl.   24.51668     -0.01902042     +0.00143849             
    P   1.07           H   22.41          G   0.15           U   0                  
    Residuals in seconds of arc
    060917 703  0.2+  0.2-    060919 734  0.3-  0.2+    060923 118  0.3+  0.7+
    060917 703  0.1-  0.5+    060919 734  0.1+  0.4+    060923 118  0.2-  0.6+
    060917 703  0.1+  0.8+    060919 703  0.1-  0.0     060923 118  0.1-  1.1+
    060917 703  0.3-  0.2-    060919 703  0.3-  0.2-    060923 113  0.3-  0.9+
    060918 703  0.8+  0.6+    060919 673  0.2+  0.2+    060923 113  0.9-  0.9+
    060918 703  0.2-  0.2+    060919 673  0.2+  0.2-    060923 118  0.0   0.3+
    060918 703 (1.9+  1.2+)   060919 673  0.1-  0.3+    060923 113  0.1-  1.0-
    060918 703  0.6+  0.4+    060919 673  0.5+  0.1+    060925 703  0.8+  0.6-
    060919 143  0.1+  0.4-    060920 198  0.0   0.3+    060925 703  0.3+  1.0-
    060919 143  0.0   0.4-    060920 198  0.0   0.3+    060925 703  0.1-  0.3-
    060919 143  0.0   0.6-    060920 198  0.1-  0.2+    060925 703  0.1-  0.2-
    060919 J95  0.1-  0.0     060920 198  0.0   0.0     060926 J95  0.5-  0.0
    060919 J95  0.4-  0.5+    060920 198  0.2-  0.2+    060926 J95  0.1+  0.1+
    060919 J95  0.9+  0.3+    060922 151  0.8-  0.3-    060926 J95  0.1+  0.2+
    060919 651  0.1-  0.2-    060922 151  0.2-  0.1-    210916 G96  0.2+  0.6-
    060919 651  0.3-  0.1-    060922 151  0.6+  0.4+    210916 G96  0.1+  0.2-
    060919 651  0.3-  0.3-    060922 151  0.3+  0.5+    210916 G96  0.0   0.0
    060919 448  0.6+  1.0-    060922 151  0.1-  0.4+    210916 G96  0.3-  0.1-
    060919 448  0.3+  0.3-    060922 151  0.9-  0.4+    210916 G96  0.1+  0.1+
    060919 448  0.4-  0.5+    060922 704  0.7-  1.3+    210916 G96  0.4-  0.1-
    060919 703  0.4-  0.1+    060922 704  0.1+  1.2+    210916 G96  0.1+  0.1+
    060919 703  0.0   0.2-    060922 704  0.5+  0.4+    210918 G96  0.2+  0.1-
    060919 734  0.2-  0.3+    060922 704  0.2-  0.6+    210918 G96  0.0   0.1-
    060919 734  0.2-  0.4+    060922 704  1.0+  0.4+    210918 G96  0.0   0.1+
    060919 734  0.1+  0.0     060923 118  0.3-  0.3+    210918 G96  0.2-  0.5+
    
    Ephemeris:
    2006 SF7                 a,e,i = 1.05, 0.21, 25                  q = 0.8234
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 08 23    01 40 10.7 +44 46 40   0.3022  1.1326   106.0    59.1    22.2
    ...
    2021 09 07    03 06 58.1 +36 50 54   0.1910  1.0840   108.6    61.8    21.2
    ...
    2021 09 15    04 12 34.6 +23 52 27   0.1450  1.0561   106.5    65.9    20.7
    ...
    2021 09 21    05 09 33.8 +07 18 30   0.1261  1.0345   100.5    72.6    20.5
    2021 09 22    05 19 24.7 +04 05 32   0.1249  1.0309    99.1    74.0    20.5
    2021 09 23    05 29 17.5 +00 49 07   0.1242  1.0273    97.6    75.5    20.6
    ...
    2021 09 29    06 27 47.7 -17 59 52   0.1327  1.0053    87.7    84.7    21.0
    ...
    2021 10 07    07 37 54.5 -35 06 06   0.1692  0.9760    77.2    93.1    21.8
    ...
    2021 10 22    09 16 16.2 -47 21 02   0.2678  0.9229    66.7    97.8    22.9
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-S61
    


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