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  • MPEC 2023-V48 : 2017 XG2

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    M.P.E.C. 2023-V48                              Issued 2023 November 5, 14:17 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 XG2                                 
    
    
                               Revision to MPEC 2017-X115                           
    
    Additional Observations:
         K17X02G 0C2023 09 17.24562821 43 55.749-01 28 07.71         24.51GVEV048T12
         K17X02G 0C2023 09 17.28909321 43 52.293-01 28 31.76         24.19GVEV048T12
         K17X02G 0C2023 09 19.30748021 41 24.328-01 46 54.32         24.63GVEV048T12
    
    Observer details:
    T12 University of Hawaii 88-inch telescope, Maunakea.  Observer D. Hung.
        Measurer D. J. Tholen.  2.24-m f/10.1 reflector + 2112 x 2112 pixels
        STA1600 10k CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    230917 T12 29.2- 13.9-    230919 T12 28.5- 13.6-    E2023-O30   +0.01 days
    
    Orbital elements:
    2017 XG2                                                 Earth MOID = 0.0194 AU
    Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
    M 184.30034              (2000.0)            P               Q                  
    n   0.62400966     Peri.  242.48883     -0.92457177     -0.36669653             
    a   1.3562565      Node   275.84565     +0.37585786     -0.83332606             
    e   0.3411861      Incl.    5.96868     +0.06243318     -0.41364397             
    P   1.58           H   22.14          G   0.15           U   1                  
    Residuals in seconds of arc
    171209 G96  2.0+  0.8+    171212 033  0.1-  0.0     171225 703  0.5+  0.0
    171209 G96  1.7+  0.0     171212 033  0.0   0.2+    171225 703  0.4-  0.5+
    171209 G96  0.6+  0.1+    171213 926  0.1-  0.1+    171225 703  0.4+  0.9-
    171209 G96  0.1-  0.0     171213 926  0.5-  0.4-    171226 G96  0.1+  0.4-
    171209 I52  0.6-  0.4+    171213 926  0.2+  0.2-    171226 G96  0.2+  0.1+
    171209 I52  0.8-  0.0     171213 I52  0.4+  0.4+    171226 G96  0.2+  0.3+
    171209 I52  0.0   0.2+    171213 I52  0.2+  0.2-    171226 G96  0.2+  1.2+
    171209 I52  0.4+  0.3+    171213 I52  0.0   0.0     171227 H21  0.2+  0.1+
    171209 H01  0.1+  0.0     171213 I52  0.1-  0.3-    171227 H21  0.1-  0.1+
    171209 H01  0.2+  0.0     171213 G96  0.1+  0.5-    171227 H21  0.3+  0.0
    171209 H01  0.1+  0.1+    171213 G96  1.0-  0.5-    180105 I52  0.2-  0.3+
    171209 H01  0.1+  0.1+    171213 G96  0.3+  0.2-    180105 I52  0.0   0.7+
    171210 H36  0.1-  0.1+    171213 G96  0.1-  0.2+    180105 I52  0.1+  0.1+
    171210 H36  0.2-  0.0     171214 691  0.3-  2.3-    180105 I52  0.0   0.2-
    171210 H36  0.5-  0.2-    171214 I52  0.0   0.0     180105 691  0.2-  0.2+
    171210 H01  0.1+  0.0     171214 I52  0.3+  0.2+    180105 691  0.3+  0.5+
    171210 H01  0.1+  0.0     171214 I52  0.2+  0.1+    180105 691  0.0   0.2+
    171210 H01  0.0   0.0     171214 I52  0.0   0.3-    180114 691  0.1-  0.1+
    171210 H01  0.2+  0.0     171214 691  0.1-  0.3-    180114 691  0.2+  0.1-
    171210 291  0.5-  0.2+    171214 926  0.1+  0.1+    180114 691  0.2+  0.0
    171210 291  0.7-  0.5-    171214 926  0.1+  0.0     180119 807  0.2-  1.6-
    171211 H21  0.3+  0.0     171214 691  0.1-  0.0     180119 807  0.2+  0.4+
    171211 H21  0.4+  0.2+    171214 926  0.1+  0.1-    180119 807  0.5+  0.1-
    171211 H21  0.4+  0.1-    171220 I52  0.5+  0.6+    180119 691  1.0-  0.5+
    171211 J95  0.0   0.3+    171220 I52  0.1-  0.2+    180119 691  0.4+  0.1+
    171211 J95  0.6-  0.1+    171220 I52  0.3+  0.3+    180420 807  0.1-  0.1+
    171211 J95  0.2+  0.2-    171220 I52  0.3+  0.0     180420 807  0.1+  0.1+
    171212 033  0.0   0.1+    171220 691  0.1+  0.1+    180420 807  0.1+  0.0
    171212 033  0.1-  0.1+    171220 691  0.0   0.0     230917 T12  0.0   0.2-
    171212 033  0.0   0.1+    171220 691  0.3-  0.1+    230917 T12  0.1+  0.2-
    171212 033  0.0   0.2+    171225 703  0.9-  0.2+    230919 T12  0.1+  0.1-
    
    Ephemeris:
    2017 XG2                 a,e,i = 1.36, 0.34, 6                   q = 0.8935
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 10 06    21 28 37.1 -03 55 34   0.9900  1.8054   130.3    25.0    24.6
    ...
    2023 10 21    21 28 26.9 -05 04 06   1.1180  1.7882   115.4    30.2    24.9
    ...
    2023 10 29    21 32 08.8 -05 20 47   1.1918  1.7763   108.4    32.1    25.1
    ...
    2023 11 04    21 36 21.8 -05 24 38   1.2483  1.7661   103.5    33.1    25.2
    2023 11 05    21 37 10.5 -05 24 35   1.2577  1.7643   102.7    33.3    25.3
    2023 11 06    21 38 01.1 -05 24 20   1.2672  1.7624   101.9    33.4    25.3
    ...
    2023 11 12    21 43 39.8 -05 18 48   1.3238  1.7507    97.3    34.1    25.4
    ...
    2023 11 20    21 52 38.1 -05 00 59   1.3984  1.7334    91.5    34.7    25.5
    ...
    2023 12 05    22 13 06.0 -03 58 03   1.5317  1.6958    81.6    35.1    25.7
    
    A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-V48
    


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