[Iaude] MPEC M70: 2017 CG56 [a=46.88,e=0.59,i=15.6,H=11.60]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-M70                                 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.
			  
             Prepared using the Tamkin Foundation Computer Network

                              MPC at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                   2017 CG56                                    


Additional Observations:
     K17C56G 1C2016 02 12.38367809 41 47.71 +01 44 25.2                WEM070T09
     K17C56G 1C2016 02 12.41636709 41 47.41 +01 44 26.1                WEM070T09
     K17C56G 1C2017 03 22.24100609 54 09.63 -00 26 14.8                WEM070T09
     K17C56G 1C2017 03 22.24595209 54 09.59 -00 26 14.4                WEM070T09
     K17C56G 1C2017 04 27.33814509 51 44.54 -00 00 38.2                WEM070T09

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
160212 T09 0.04+ 0.02+    170427 T09 0.00+ 0.00+    MPO824954    -139 days

Orbital elements:
2017 CG56                                                                       
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Alexandersen            
M   1.98844              (2000.0)            P               Q                  
n   0.00307107     Peri.  257.69581     -0.96478286     +0.02792658             
a  46.8751418      Node   283.46681     +0.09360336     -0.89281684             
e   0.5926915      Incl.   15.60215     -0.24583010     -0.44955333             
P 321              H   11.60          G   0.15           U   8                  
Residuals in seconds of arc
160212 T09  0.0   0.1+    170202 T09  0.1-  0.1-    170306 T09  0.0   0.0
160212 T09  0.1-  0.1-    170202 T09  0.1+  0.2-    170306 T09  0.1-  0.0
170128 T09  0.1+  0.1+    170202 T09  0.0   0.0     170306 T09  0.3-  0.3+
170128 T09  0.1+  0.2+    170202 T09  0.0   0.0     170322 T09  0.1+  0.1-
170128 T09  0.1-  0.3+    170202 T09  0.1+  0.0     170322 T09  0.0   0.0
170128 T09  0.0   0.2-    170306 T09  0.1-  0.0     170427 T09  0.0   0.2-

Ephemeris:
2017 CG56                a,e,i = 46.88, 0.59, 16                 q = 19.0926
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 05 28    12 06 23.7 -18 14 05  18.6749 19.2118   120.7     2.6    24.7
...
2024 06 12    12 06 19.2 -18 01 15  18.8969 19.2169   106.9     2.9    24.7
...
2024 06 20    12 06 34.9 -17 55 59  19.0240 19.2196    99.6     3.0    24.7
...
2024 06 26    12 06 54.7 -17 52 52  19.1214 19.2217    94.2     3.0    24.7
2024 06 27    12 06 58.7 -17 52 25  19.1377 19.2221    93.2     3.0    24.7
2024 06 28    12 07 02.9 -17 51 59  19.1541 19.2224    92.3     3.0    24.7
...
2024 07 04    12 07 31.9 -17 49 52  19.2524 19.2245    86.9     3.0    24.7
...
2024 07 12    12 08 20.8 -17 48 17  19.3825 19.2274    79.7     3.0    24.8
...
2024 07 27    12 10 22.2 -17 49 15  19.6166 19.2328    66.4     2.8    24.8

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-M70