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  • MPEC 2023-S263 : 2017 TL4

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    M.P.E.C. 2023-S263                           Issued 2023 September 29, 15:05 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
    
                                    2017 TL4                                 
    
    
                               Revision to MPEC 2017-T87                            
    
    Additional Observations:
         K17T04L 5C2015 04 18.20827 13 07 23.03 -10 04 26.3          23.1 VLES263W84
         K17T04L 5C2015 04 18.21148 13 07 22.84 -10 04 15.7                LES263W84
         K17T04L 5C2015 04 18.21473 13 07 22.66 -10 04 05.1                LES263W84
         K17T04L 5C2015 04 18.21795 13 07 22.47 -10 03 54.3                LES263W84
         K17T04L 5C2015 04 18.22122 13 07 22.28 -10 03 43.5                LES263W84
         K17T04L ;C2015 04 19.15000 13 06 40.34 -09 13 42.0          22.1 VVES263W84
         K17T04L ;C2015 04 19.16290 13 06 39.63 -09 13 01.4          23.1 VVES263W84
    
    Observer details:
    W84 Cerro Tololo-DECam.  Observers L. Allen, D. James.  Measurers F. Valdes,
        P. VanWylen.  4.0-m CTIO reflector, 4.0-m 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
    150418 W84 0.26+ 0.03+    150419 W84 0.25+ 0.03+    MPO477899   -0.18 days
    
    Orbital elements:
    2017 TL4                                                 Earth MOID = 0.0350 AU
    Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
    M 319.01348              (2000.0)            P               Q                  
    n   0.66740530     Peri.  249.51938     -0.11517566     -0.98580785             
    a   1.2968098      Node   207.96959     +0.98050465     -0.09311837             
    e   0.3219440      Incl.   15.09489     +0.15920178     -0.13968483             
    P   1.48           H   24.38          G   0.15           U   2                  
    Residuals in seconds of arc
    150418 W84  0.1+  0.0     171013 G96  0.1-  0.0     171019 246  0.0   0.8-
    150418 W84  0.0   0.0     171013 926  0.2+  0.2-    171019 246  1.0+  1.2+
    150418 W84  0.1+  0.0     171013 926  0.3-  0.3+    171019 246  0.0   0.3+
    150418 W84  0.1+  0.1+    171013 926  0.1-  0.4-    171019 246  0.8+  0.1+
    150418 W84  0.1+  0.2+    171014 K88  0.5+  0.4+    171019 246  0.3+  0.2-
    150419 W84  0.0   0.2+    171014 K88  0.6+  0.4+    171019 204  0.2-  0.0
    150419 W84  0.0   0.1-    171014 K88  0.3-  0.0     171019 204  0.0   0.2+
    171011 G96  0.1+  0.1-    171014 G96  0.1+  0.3+    171019 204  0.0   0.0
    171011 G96  0.6-  0.3-    171014 G96  0.0   0.0     171020 I52  0.1-  0.1-
    171011 G96  0.3+  0.3-    171014 G96  0.0   0.2-    171020 I52  0.1-  0.0
    171011 G96  0.0   0.0     171014 G96  0.1-  0.0     171020 I52  0.0   0.0
    171011 H01  0.0   0.1-    171017 H21  0.4-  0.0     171020 I52  0.1-  0.0
    171011 H01  0.0   0.1-    171017 H21  0.1+  0.2+    171021 703  0.9-  0.1-
    171011 H01  0.1-  0.0     171017 H21  0.2-  0.2-    171021 703  1.0+  0.8-
    171011 H01  0.1-  0.1-    171018 F51  0.2-  0.3-    171021 703  0.1+  0.6-
    171011 G96  0.0   0.2+    171018 F51  0.1+  0.2-    171021 703  0.4+  0.2-
    171011 G96  0.3-  0.2-    171018 F51  0.1+  0.0     171023 703  0.1+  0.9+
    171011 G96  0.6-  0.2-    171018 246  0.6+  0.1+    171023 703  0.0   0.1-
    171012 G96  0.1+  0.1-    171018 246  0.4+  0.0     171023 703  0.0   0.4+
    171012 G96  0.1+  0.3-    171018 246  0.3+  1.5+    171023 703  0.3-  1.2+
    171012 G96  0.1-  0.0     171019 I52  0.0   0.1-    171023 F51  0.1-  0.1+
    171012 G96  0.3-  0.0     171019 I52  0.0   0.0     171027 474  0.1+  0.2-
    171013 G96  0.0   0.1+    171019 I52  0.0   0.1-    171027 474  0.1-  0.3-
    171013 G96  0.1+  0.2+    171019 I52  0.1+  0.0     171027 474  0.0   0.4-
    171013 G96  0.0   0.0     171019 246  0.6-  0.6-    171027 474  0.0   0.1-
    
    Ephemeris:
    2017 TL4                 a,e,i = 1.30, 0.32, 15                  q = 0.8793
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 08 30    04 47 12.5 +29 29 07   0.6791  1.1361    82.0    61.7    26.0
    ...
    2023 09 14    06 12 55.5 +24 48 40   0.6126  1.0605    77.7    68.0    25.8
    ...
    2023 09 22    06 59 05.3 +20 37 14   0.5949  1.0222    74.6    71.3    25.8
    ...
    2023 09 28    07 32 46.3 +16 52 08   0.5908  0.9951    72.1    73.5    25.8
    2023 09 29    07 38 16.4 +16 12 21   0.5908  0.9908    71.7    73.8    25.8
    2023 09 30    07 43 44.3 +15 32 04   0.5911  0.9865    71.3    74.1    25.8
    ...
    2023 10 06    08 15 43.5 +11 22 29   0.5972  0.9618    68.8    75.8    25.8
    ...
    2023 10 14    08 56 05.6 +05 43 04   0.6165  0.9328    65.7    77.2    25.9
    ...
    2023 10 29    10 05 16.2 -04 07 48   0.6801  0.8937    61.2    77.0    26.0
    
    A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-S263
    


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