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  • MPEC 2023-P79 : 2018 QY

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    M.P.E.C. 2023-P79                               Issued 2023 August 14, 14:05 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
    
                                     2018 QY                                 
    
    
                               Revision to MPEC 2018-Q61                            
    
    Additional Observations:
         K18Q00Y 0C2023 07 14.27851911 06 34.358+30 08 03.61         24.54GVEP079T14
         K18Q00Y 0C2023 08 13.26074913 39 57.972+16 45 32.85         23.13GVEP079T14
         K18Q00Y 0C2023 08 13.26219013 39 58.691+16 45 26.16         23.15GVEP079T14
         K18Q00Y 0C2023 08 13.26362913 39 59.409+16 45 19.31         23.05GVEP079T14
    
    Observer details:
    T14 Canada-France-Hawaii Telescope, Maunakea.  Observers A. Acohido, L. Wells.
        Measurer D. J. Tholen.  3.6-m f/4.1 reflector + 1024 x 2306 pixels
        Megacam.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    230714 T14 0.03- 0.11-    230813 T14 0.02- 0.16-    MPO461089   +0.11 days
    
    Orbital elements:
    2018 QY                                                  Earth MOID = 0.0272 AU
    Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
    M  42.19856              (2000.0)            P               Q                  
    n   0.58658855     Peri.   96.74120     -0.37658066     +0.91707836             
    a   1.4133411      Node   150.05824     -0.91927794     -0.35246043             
    e   0.4546498      Incl.   15.21316     -0.11452110     -0.18638380             
    P   1.68           H   22.66          G   0.15           U   1                  
    Residuals in seconds of arc
    180819 F51  0.0   0.3-    180821 F51  0.3+  0.3+    180907 I52  0.2+  0.2+
    180819 F51  0.1+  0.1+    180822 595  1.2-  0.2+    180907 I52  0.0   0.0
    180819 F51  0.2+  0.2+    180822 595  0.4+  0.7-    180911 I52  0.4+  0.2-
    180820 L01  0.0   0.5+    180822 L01  0.1-  0.2-    180911 I52  0.5-  0.9-
    180820 L01  0.3-  0.1-    180822 L01  0.2-  0.2-    180922 807  0.6+  0.9-
    180820 L01  0.3-  0.0     180822 L01  0.2-  0.3-    180922 807  0.1+  0.2+
    180820 K88  0.3-  0.1+    180902 807  0.3-  0.1+    181002 807  0.1+  0.0
    180820 K88  0.2+  0.0     180902 807  0.1+  0.4+    181002 807  0.0   0.1+
    180820 K88  0.0   0.1+    180902 807  0.1+  0.3-    181002 807  0.1+  0.0
    180820 104  0.4+  0.1-    180904 I52  0.4+  0.6+    230714 T14  0.0   0.1+
    180820 104  0.2+  0.1-    180904 I52  0.4-  0.2+    230813 T14  0.0   0.0
    180820 104  0.2-  0.3-    180904 I52  0.2-  0.0     230813 T14  0.0   0.0
    180821 F51  0.0   0.1-    180904 I52  0.2+  0.0     230813 T14  0.0   0.1-
    180821 F51  0.1-  0.2-    180907 I52  0.3-  0.0
    180821 F51  0.1-  0.2-    180907 I52  0.7-  0.4+
    
    Ephemeris:
    2018 QY                  a,e,i = 1.41, 0.45, 15                  q = 0.7708
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 07 15    11 09 17.2 +30 04 01   0.4768  0.7865    48.5   104.5    24.4
    ...
    2023 07 30    12 10 58.6 +27 01 07   0.3212  0.8462    50.2   112.9    24.2
    ...
    2023 08 07    12 54 19.4 +22 52 06   0.2463  0.8914    53.9   113.3    23.7
    ...
    2023 08 13    13 37 48.2 +17 05 30   0.1974  0.9295    59.7   109.7    23.1
    2023 08 14    13 46 23.2 +15 47 07   0.1902  0.9362    61.1   108.7    23.0
    2023 08 15    13 55 25.4 +14 21 28   0.1833  0.9428    62.6   107.4    22.9
    ...
    2023 08 21    15 00 18.6 +02 56 38   0.1512  0.9841    75.2    96.3    22.0
    ...
    2023 08 29    16 51 53.5 -16 56 01   0.1452  1.0415    98.5    73.6    21.1
    ...
    2023 09 13    19 47 45.3 -34 07 00   0.2400  1.1519   122.1    47.8    21.7
    
    A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-P79
    


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