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  • MPEC 2023-U104 : 2017 UD8

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    M.P.E.C. 2023-U104                             Issued 2023 October 19, 14:22 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 UD8                                 
    
    
                               Revision to MPEC 2017-U274                           
    
    Additional Observations:
         K17U08D  C2019 10 21.44558 04 57 30.43 +38 15 44.7          21.3 GVEU104G96
         K17U08D  C2019 10 21.45236 04 57 30.13 +38 14 36.8          20.8 GVEU104G96
         K17U08D  C2019 10 22.45627 04 57 15.00 +35 29 10.4          21.6 GVEU104G96
         K17U08D  C2019 10 22.46853 04 57 14.43 +35 27 08.7          21.1 GVEU104G96
         K17U08D  C2019 10 22.47368 04 57 14.19 +35 26 17.8          21.1 GVEU104G96
         K17U08D  C2019 10 22.47883 04 57 13.94 +35 25 26.0          21.4 GVEU104G96
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  Measurers B. Gray, D. Rankin, F.
        C. Shelly, 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, R. L. Seaman, 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
    191021 G96 0.08- 0.05-    191022 G96 0.08- 0.05-    MPO428367   -0.04 days
    
    Orbital elements:
    2017 UD8                                                 Earth MOID = 0.0879 AU
    Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
    M   2.87326              (2000.0)            P               Q                  
    n   0.49733903     Peri.  141.15214     +0.98105566     +0.04141067             
    a   1.5777361      Node   217.81120     -0.07141569     +0.98539333             
    e   0.3457991      Incl.   17.98054     +0.18008219     +0.16518217             
    P   1.98           H   24.05          G   0.15           U   1                  
    Residuals in seconds of arc
    171027 G96  0.3+  0.4-    171027 J95  0.3-  0.0     171029 926  0.0   0.7+
    171027 G96  0.1+  0.5-    171028 V06  0.1+  0.0     171111 807  0.2-  0.0
    171027 G96  0.1+  0.2-    171028 V06  0.2+  0.1+    171111 807  0.3-  0.3+
    171027 G96  0.1+  0.0     171028 V06  0.2+  0.0     171111 807  0.3+  0.1-
    171027 V06  0.9+  0.4-    171028 V06  0.2+  0.0     171112 807  0.0   0.2-
    171027 V06  0.3+  0.3+    171028 926  0.3+  0.1+    171112 807  0.1-  0.1+
    171027 V06  0.6+  0.1+    171028 926  0.0   0.1-    171112 807  0.6+  0.3+
    171027 V06  0.5+  0.2-    171028 926  0.1+  0.6+    171116 H21  0.8+  0.5-
    171027 V06  0.4+  0.2-    171028 711  0.8-  2.2-    171116 H21  0.0   0.5-
    171027 V06  0.3+  0.0     171028 711  0.1+  0.7-    171116 H21  0.9-  0.1-
    171027 V06  0.3+  0.1+    171028 711  0.7-  0.7-    191021 G96  0.4+  0.4+
    171027 106  3.3-  0.8+    171028 711  0.1-  1.2-    191021 G96  0.3+  0.2-
    171027 106  0.3-  1.1+    171029 H36  2.5+  0.1+    191022 G96  0.3-  0.1-
    171027 106  1.3-  0.4+    171029 H36  0.0   1.0-    191022 G96  0.1-  0.2-
    171027 106  0.2-  0.3+    171029 H36  0.2+  0.1-    191022 G96  0.1-  0.1+
    171027 J95  0.2-  0.1-    171029 926  0.0   0.1-    191022 G96  0.2-  0.5-
    171027 J95  0.0   0.3+    171029 926  0.2-  0.1+
    
    Ephemeris:
    2017 UD8                 a,e,i = 1.58, 0.35, 18                  q = 1.0322
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 09 19    05 58 20.3 +48 00 28   0.3388  1.0388    86.2    74.8    24.4
    ...
    2023 10 04    06 37 59.8 +33 22 09   0.3315  1.0655    92.1    69.8    24.2
    ...
    2023 10 12    06 50 48.1 +25 12 47   0.3311  1.0873    96.6    65.8    24.2
    ...
    2023 10 18    06 57 14.5 +19 07 37   0.3327  1.1065   100.5    62.3    24.1
    2023 10 19    06 58 03.8 +18 07 23   0.3331  1.1099   101.2    61.7    24.1
    2023 10 20    06 58 49.0 +17 07 24   0.3336  1.1134   101.8    61.1    24.1
    ...
    2023 10 26    07 01 53.6 +11 14 23   0.3376  1.1356   106.2    57.2    24.0
    ...
    2023 11 03    07 02 14.3 +03 49 27   0.3461  1.1680   112.2    51.8    24.0
    ...
    2023 11 18    06 51 30.9 -07 59 04   0.3733  1.2353   123.7    41.8    24.0
    
    A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-U104
    


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