[Iaude] MPEC M69: 2017 CF56 [a=54.51,e=0.59,i=14.5,H=10.76]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-M69                                 Issued 2024 June 27, 02:44 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.
			  
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                              MPC at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                   2017 CF56                                    


Additional Observations:
     K17C56F 1C2016 02 12.35132909 43 58.96 +00 40 20.4                WEM069T09
     K17C56F 1C2016 02 12.38367809 43 58.72 +00 40 21.2                WEM069T09
     K17C56F 1C2016 02 12.40542709 43 58.55 +00 40 22.0                WEM069T09
     K17C56F 1C2017 03 22.23816409 52 32.13 -00 39 37.6                WEM069T09

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, reference and Delta-T
160212 T09 81.9- 29.0-    170322 T09  0.5-  0.0-    MPO824954   +89.7 days

Orbital elements:
2017 CF56                                                                       
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M 357.47420              (2000.0)            P               Q                  
n   0.00244921     Peri.  278.52585     -0.94408197     +0.21538511             
a  54.5069943      Node   274.18858     -0.10135534     -0.91006204             
e   0.5922948      Incl.   14.49558     -0.31374563     -0.35411346             
P 402              H   10.76          G   0.15           U   9                  
Residuals in seconds of arc
160212 T09  0.0   0.1+    170202 T09  0.2+  0.0     170306 T09  0.0   0.2+
160212 T09  0.0   0.1-    170202 T09  0.1+  0.3+    170306 T09  0.0   0.0
160212 T09  0.1-  0.0     170202 T09  0.3-  0.2+    170306 T09  0.1-  0.1-
170126 T09  0.2+  0.2-    170202 T09  0.1-  0.2-    170322 T09  0.0   0.2-
170126 T09  0.0   0.1+    170306 T09  0.2-  0.0
170126 T09  0.1-  0.0     170306 T09  0.0   0.1-

Ephemeris:
2017 CF56                a,e,i = 54.51, 0.59, 14                 q = 22.2228
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 05 28    11 31 08.9 -12 57 12  22.0060 22.3899   111.0     2.4    24.5
...
2024 06 12    11 31 25.8 -12 48 47  22.2349 22.3849    97.2     2.6    24.5
...
2024 06 20    11 31 50.0 -12 45 50  22.3613 22.3822    89.9     2.6    24.5
...
2024 06 26    11 32 14.8 -12 44 24  22.4562 22.3802    84.4     2.6    24.5
2024 06 27    11 32 19.5 -12 44 13  22.4720 22.3799    83.5     2.6    24.5
2024 06 28    11 32 24.3 -12 44 04  22.4877 22.3795    82.6     2.6    24.5
...
2024 07 04    11 32 56.5 -12 43 32  22.5812 22.3776    77.2     2.5    24.6
...
2024 07 12    11 33 47.6 -12 43 55  22.7023 22.3750    70.0     2.4    24.6
...
2024 07 27    11 35 46.4 -12 48 01  22.9118 22.3701    56.7     2.2    24.6

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-M69