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  • MPEC 2019-U257 : 2006 XF2

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    M.P.E.C. 2019-U257                             Issued 2019 October 29, 14:10 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 XF2                                 
    
    
                               Revision to MPEC 2006-X51                            
    
    Additional Observations:
         K06X02F KC2019 10 28.11924 07 28 04.63 +09 03 01.0          20.9 RtEU257J04
         K06X02F KC2019 10 28.12226 07 28 05.20 +09 03 05.1          20.8 RtEU257J04
         K06X02F KC2019 10 29.21756 07 31 51.47 +09 25 04.6          20.2 RtEU257J04
         K06X02F KC2019 10 29.22512 07 31 53.03 +09 25 13.3          20.7 RtEU257J04
         K06X02F KC2019 10 29.23266 07 31 54.59 +09 25 22.9          20.5 RtEU257J04
    
    Observer details:
    J04 ESA Optical Ground Station, Tenerife.  Observer D. Abreu.  Measurers E. 
       Schwab, M. Micheli, D. Koschny, A. Knofel, M. Busch.  1.0-m f/4.4 
       reflector + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    191028 J04 0.61- 0.29-    191029 J04 0.62- 0.29-    MPO221086   -0.51 days
    
    Orbital elements:
    2006 XF2                                                 Earth MOID = 0.2195 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 Veres
    M 283.48695              (2000.0)            P               Q
    n   0.30436413     Peri.   45.44553     -0.48638523     -0.75215039
    a   2.1888050      Node    78.77113     +0.61635873     -0.65604858
    e   0.4910869      Incl.   26.95634     +0.61929906     +0.06220973
    P   3.24           H   19.9           G   0.15           U   1
    Residuals in seconds of arc
    061123 645  0.3+  0.7+    061215 704  0.5+  0.0     061231 673  0.2-  0.2-
    061123 645  0.5-  0.8-    061215 704  1.1+  0.3-    061231 673  0.0   0.8-
    061123 645  0.4+  0.8+    061215 A17  0.4+  1.2-    061231 673  0.3+  0.0
    061123 645  0.6-  0.7-    061215 A17  0.3+  0.1-    061231 673  0.6-  0.3-
    061123 645  0.2+  0.7+    061215 A17  1.2+  0.1-    070204 J95  0.1+  0.7+
    061123 645  0.6-  0.6-    061216 704  1.4+  0.4-    070204 J95  0.9-  1.0+
    061123 645  0.3+  0.6+    061216 696  0.1+  0.2-    070204 J95  0.1-  1.4+
    061123 645  0.4-  0.7-    061216 696  0.0   0.1-    070225 696  0.4-  0.1-
    061212 704  1.2+  0.2+    061216 704  0.7+  0.2+    070225 696  0.0   0.5+
    061212 704  0.4+  0.5+    061216 704  0.1-  0.8+    070408 J95  0.9+  0.2-
    061212 704  0.8+  0.3+    061216 704  0.9+  0.1+    070408 J95  0.1-  0.0
    061212 704  0.4+  1.2-    061216 704 (2.4+  3.0+)   070408 J95  0.6+  0.1-
    061212 473  0.4+  0.1+    061220 H55 (0.8-  1.8-)   070417 H55  0.0   0.2-
    061212 473  0.2+  0.0     061220 H55  0.0   0.5-    070417 H55  0.1-  0.4-
    061212 473  1.1+  0.2-    061220 H55 (3.5-  4.6-)   070417 H55  0.1+  0.1-
    061213 704  0.5+  0.4+    061221 703  0.8+  1.1+    070516 291 (0.8-  2.4-)
    061213 704  0.2-  0.0     061221 H36  0.5-  1.0-    070516 291  1.2+  1.2-
    061213 704  0.3+  0.0     061221 H36  0.3-  0.5+    070516 291 (0.3-  1.9-)
    061213 704  0.1+  0.8-    061221 H36  1.0+  0.5-    191028 J04  0.7+  0.3-
    061213 704  0.4+  0.2+    061221 703  1.0+  0.6+    191028 J04  0.1+  0.2+
    061215 704  0.2+  0.2+    061221 H36 (1.2+  1.7-)   191029 J04  0.7-  0.7+
    061215 704  0.6+  0.0     061221 703  0.9+  0.6-    191029 J04  0.5-  0.1+
    061215 704  0.2+  0.0     061221 703  0.2-  0.2+    191029 J04  0.2-  0.5+
    
    Ephemeris:
    2006 XF2                 a,e,i = 2.19, 0.49, 27                  q = 1.1139
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2019 09 29    06 04 35.2 +02 48 27   1.0739  1.5167    93.8    41.2    22.6
    ...
    2019 10 14    06 44 15.7 +05 19 45   0.8824  1.4220    98.1    44.0    22.1
    ...
    2019 10 22    07 08 03.9 +07 13 43   0.7874  1.3736   100.1    45.5    21.8
    ...
    2019 10 28    07 27 39.4 +09 00 44   0.7204  1.3387   101.5    46.7    21.6
    2019 10 29    07 31 05.8 +09 20 41   0.7097  1.3330   101.7    46.9    21.6
    2019 10 30    07 34 35.6 +09 41 18   0.6991  1.3273   101.9    47.1    21.5
    ...
    2019 11 05    07 56 51.8 +11 59 36   0.6384  1.2944   103.0    48.3    21.3
    ...
    2019 11 13    08 30 46.2 +15 46 35   0.5669  1.2533   103.9    50.0    21.0
    ...
    2019 11 28    09 51 45.8 +24 50 25   0.4716  1.1874   103.3    54.0    20.6
    
    A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-U257
    


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