• MPC Preparation (Info)

  • MPEC 2019-W139 : 2013 XY20

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.


    Read MPEC 2019-W138 Read MPEC 2019-W140


    M.P.E.C. 2019-W139                            Issued 2019 November 26, 00:43 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
    
                                    2013 XY20                                
    
    
                               Revision to MPEC 2013-X63                            
    
    Additional Observations:
         K13X20Y KC2019 11 23.92558401 53 23.505-07 17 00.83         21.1 GVEW139J04
         K13X20Y KC2019 11 23.92905601 53 23.085-07 16 52.64         21.6 GVEW139J04
         K13X20Y KC2019 11 25.95839101 51 17.041-05 52 29.75         21.5 GVEW139J04
         K13X20Y KC2019 11 25.96140101 51 16.684-05 52 22.30         22.1 GVEW139J04
         K13X20Y KC2019 11 25.96441201 51 16.364-05 52 14.11         21.7 GVEW139J04
    
    Observer details:
    J04 ESA Optical Ground Station, Tenerife.  Observer D. Abreu.  Measurers M. 
       Micheli, D. Koschny, M. Busch, A. Knofel, E. Schwab.  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
    191123 J04 0.16+ 0.03+    191125 J04 0.16+ 0.03+    MPO288539    -439 days
    
    Orbital elements:
    2013 XY20                                                Earth MOID = 0.0292 AU
    Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
    M 123.41689              (2000.0)            P               Q
    n   0.81638103     Peri.   19.33261     -0.12954833     -0.99037586
    a   1.1338113      Node    78.13409     +0.90307017     -0.13813069
    e   0.1091150      Incl.    2.85313     +0.40948931     -0.00869335
    P   1.21           H   25.5           G   0.15           U   0
    Residuals in seconds of arc
    131126 F51  0.0   0.1+    131212 H36  0.5-  0.7+    131222 568  0.1-  0.0
    131126 F51  0.3+  0.1+    131212 291  0.0   0.3+    131230 204  0.0   0.1-
    131211 G96  0.2+  0.0     131212 291  0.0   0.1+    131230 204  0.1+  0.1+
    131211 G96  0.0   0.2-    131212 291  0.0   0.1+    131230 204  0.1+  0.1+
    131211 G96  0.3+  0.3+    131213 958  0.2+  0.9+    140109 568  0.0   0.0
    131211 G96  0.4+  0.1-    131213 958  0.6+  0.2-    140109 568  0.0   0.0
    131211 G96  0.0   0.1+    131213 958 (2.8-  0.7+)   140129 290  0.2+  0.0
    131211 G96  0.4+  0.0     131213 G96  0.2+  0.2-    140129 290  0.2+  0.5-
    131211 G96  0.0   0.3-    131213 G96  0.1+  0.2-    140129 290  0.3+  0.0
    131211 H21  0.0   0.2+    131213 G96  1.2-  1.1-    140129 290  0.2+  0.1-
    131211 H21  0.2+  0.2-    131213 G96  0.3+  0.1-    140129 290  0.5+  0.0
    131211 H21  0.0   0.2+    131213 H21  0.3+  0.1+    140129 290  0.3+  0.0
    131211 G96  0.3-  0.2+    131213 H21  0.0   0.1-    140205 568  0.1-  0.0
    131211 G96  0.2+  0.4+    131214 926  0.2+  0.5+    140205 568  0.1-  0.0
    131211 G96  0.2+  0.1+    131214 926  0.1+  0.5+    140228 568  0.1+  0.1-
    131211 291  0.1-  0.1+    131214 926  0.3+  0.3+    140228 568  0.1+  0.1-
    131211 291  0.0   0.2+    131216 H01  0.0   0.0     191123 J04  0.1+  1.1-
    131211 291  0.1-  0.1+    131216 H01  0.3-  0.1-    191123 J04  0.2+  1.1-
    131212 104  0.1+  0.3-    131216 H01  0.1-  0.0     191125 J04  0.1+  1.3-
    131212 104  0.2+  0.1-    131216 H01  0.1+  0.1-    191125 J04 (0.0   1.7-)
    131212 H36  0.3-  0.2-    131222 568  0.0   0.0     191125 J04  0.5+  1.4-
    131212 H36  0.5+  0.4+    131222 568  0.0   0.1+
    
    Ephemeris:
    2013 XY20                a,e,i = 1.13, 0.11, 3                   q = 1.0101
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2019 10 27    02 28 27.6 -14 32 16   0.08268 1.0679   152.2    25.7    21.4
    ...
    2019 11 11    02 09 47.1 -13 13 16   0.06593 1.0461   146.9    31.1    21.0
    ...
    2019 11 19    01 59 09.6 -10 07 38   0.05934 1.0360   142.3    35.7    20.9
    ...
    2019 11 25    01 52 14.7 -06 31 51   0.05533 1.0293   138.5    39.5    20.8
    2019 11 26    01 51 15.5 -05 49 12   0.05474 1.0283   137.9    40.1    20.8
    2019 11 27    01 50 20.0 -05 04 39   0.05417 1.0273   137.2    40.7    20.8
    ...
    2019 12 03    01 46 17.7 +00 02 11   0.05122 1.0218   133.5    44.4    20.8
    ...
    2019 12 11    01 45 38.6 +08 27 29   0.04842 1.0160   129.2    48.7    20.8
    ...
    2019 12 26    02 01 49.0 +27 22 25   0.04715 1.0100   123.1    54.6    20.9
    
    A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-W139
    


    Read MPEC 2019-W138 Read MPEC 2019-W140


    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)