[Iaude] MPEC M63: 2017 DC165 [a=45.24,e=0.09,i=3.6,H=7.87]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-M63                                 Issued 2024 June 27, 02:25 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                   2017 DC165                                   


Additional Observations:
     K17DG5C 1C2016 04 04.44253412 38 18.34 -00 24 11.8                WEM063T09
     K17DG5C 1C2016 04 04.51520112 38 18.04 -00 24 10.1                WEM063T09
     K17DG5C 1C2016 04 04.54511912 38 17.93 -00 24 09.3                WEM063T09
     K17DG5C 1C2017 04 27.38087612 40 50.19 -00 39 05.7                WEM063T09
     K17DG5C 1C2017 04 27.42612012 40 50.03 -00 39 04.9                WEM063T09
     K17DG5C 1C2019 04 06.46046112 50 08.00 -01 34 43.8                WEM063T09
     K17DG5C 1C2019 04 06.50169712 50 07.85 -01 34 42.8                WEM063T09

Observer details:
T09 Subaru Telescope, Maunakea.  Observer .  Measurer S. Deen.  8.3-m Subaru
    Telescope + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
160404 T09 0.19+ 0.09+    190406 T09 0.37+ 0.17+    MPO824973  -39931 days

Orbital elements:
2017 DC165                                                                      
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M 238.25860              (2000.0)            P               Q                  
n   0.00323878     Peri.  205.86819     +0.84510005     +0.53188770             
a  45.2427289      Node   121.89453     -0.47882491     +0.79787759             
e   0.0930255      Incl.    3.63746     -0.23776586     +0.28370202             
P 304              H    7.87          G   0.15           U   6                  
Residuals in seconds of arc
160404 T09  0.0   0.1-    170221 T09  0.2+  0.0     170304 T09  0.1-  0.2+
160404 T09  0.2-  0.2-    170223 T09  0.2-  0.3+    170427 T09  0.0   0.0
160404 T09  0.0   0.2-    170223 T09  0.2+  0.2-    170427 T09  0.0   0.1-
170221 T09  0.2+  0.3+    170223 T09  0.0   0.0     190406 T09  0.2-  0.1-
170221 T09  0.1+  0.2-    170304 T09  0.1-  0.2+    190406 T09  0.1+  0.1-
170221 T09  0.0   0.1+    170304 T09  0.1-  0.2+

Ephemeris:
2017 DC165               a,e,i = 45.24, 0.09, 4                  q = 41.0340
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 05 28    13 07 06.3 -03 15 58  47.0541 47.7090   129.8     0.9    24.8
...
2024 06 12    13 06 37.2 -03 13 58  47.2628 47.7063   115.3     1.1    24.8
...
2024 06 20    13 06 28.1 -03 13 36  47.3864 47.7049   107.7     1.2    24.8
...
2024 06 26    13 06 24.2 -03 13 40  47.4828 47.7038   102.0     1.2    24.8
2024 06 27    13 06 23.8 -03 13 42  47.4991 47.7036   101.0     1.2    24.8
2024 06 28    13 06 23.5 -03 13 45  47.5154 47.7034   100.1     1.2    24.8
...
2024 07 04    13 06 23.3 -03 14 11  47.6145 47.7023    94.3     1.2    24.8
...
2024 07 12    13 06 27.3 -03 15 13  47.7477 47.7008    86.8     1.2    24.8
...
2024 07 27    13 06 47.6 -03 18 28  47.9926 47.6981    72.6     1.2    24.8

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-M63