[Iaude] MPEC O86: 2017 XC [a=2.37,e=0.60,i=33.6,H=20.04]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Mon Jul 29 11:53:16 EDT 2024


M.P.E.C. 2024-O86                                 Issued 2024 July 29, 15:51 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 XC                                     


                           Revision to MPEC 2017-X76                            

Additional Observations:
     K17X00C 0C2021 10 11.62659509 56 27.300+39 12 58.67         23.96GVEO086T14
     K17X00C 0C2021 10 11.62988809 56 27.828+39 12 59.55         23.77GVEO086T14
     K17X00C 0C2021 10 11.63318409 56 28.349+39 13 00.56         23.83GVEO086T14
     K17X00C 0C2021 10 29.63966610 41 11.100+40 40 43.10         23.80GVEO086T14
     K17X00C 0C2021 10 30.62788710 43 25.964+40 46 10.64         23.45GVEO086T14

Observer details:
T14 Canada-France-Hawaii Telescope, Maunakea.  Observer 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
211011 T14 0.06- 0.01-    211030 T14 0.05- 0.02-    E2024-G77   -0.55 days

Orbital elements:
2017 XC                                             PHA, Earth MOID = 0.0496 AU
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5                 Veres                   
M 327.04758              (2000.0)            P               Q                  
n   0.26939198     Peri.  318.63892     +0.90957373     -0.02915633             
a   2.3743584      Node    48.43853     +0.32602197     +0.66858395             
e   0.6007601      Incl.   33.64104     -0.25765345     +0.74306488             
P   3.66           H   20.04          G   0.15           U   1                  
Residuals in seconds of arc
171123 G96  0.1+  0.1-    171207 691  0.4+  0.1-    171228 I52  0.3+  0.1-
171123 G96  0.1-  0.1+    171207 691  0.3+  0.1-    171228 I52  0.1+  0.1+
171123 G96  0.2+  0.2-    171207 J95  0.2-  0.1+    171229 291 (2.1+  0.4+)
171204 F51  0.2-  0.1-    171207 J95  0.4-  0.7+    171229 291 (1.7+  0.0 )
171204 F51 (0.0   0.4+)   171209 I52  0.2-  0.5+    171229 291 (1.8+  0.1+)
171204 F51  0.2-  0.1-    171209 I52  0.0   0.3+    180106 695  0.3+  0.1+
171204 F51 (0.3-  0.2-)   171209 I52  0.0   0.1-    180106 695  0.0   0.1-
171205 P93  0.1+  0.4+    171209 I52  0.1+  0.1-    180106 291  0.3-  0.2+
171205 P93  0.2+  0.1-    171211 H45  0.4-  0.1+    180106 695  0.1-  0.2+
171205 P93  0.5+  0.1-    171211 H45  0.3-  0.3+    180106 291  0.1-  0.1+
171205 204  0.1+  0.1+    171211 H45  0.0   0.1-    180118 T12  0.1+  0.0
171205 204  0.1-  0.0     171211 H45  0.0   0.3+    180118 T12  0.1-  0.0
171205 204  0.1-  0.1-    171211 H45  0.2-  0.6+    180118 T12  0.0   0.0
171205 595  0.4+  0.4+    171211 H45  0.3+  0.5+    180118 T12  0.0   0.0
171205 587  0.4+  0.8+    171213 G96  0.1+  0.1-    180120 291 (2.6+  0.7+)
171205 595  0.5+  0.3+    171213 G96  0.1+  0.0     180120 291 (3.0+  0.2-)
171205 587  0.5+  0.6+    171213 G96  0.4+  0.3-    180120 291 (4.0+  0.3+)
171205 587  0.7+  0.4+    171213 G96  0.3+  0.5-    180123 291  0.5+  0.8+
171205 587  0.6+  0.4+    171217 F51  0.0   0.0     180123 291 (2.9+  0.3+)
171205 595  0.5+  0.5+    171220 I52  0.1-  0.1-    180123 291 (1.0+  1.5+)
171206 H21  0.2+  0.1-    171220 I52  0.0   0.0     211011 T14  0.0   0.0
171206 H21  0.1+  0.0     171220 I52  0.3-  0.0     211011 T14  0.0   0.0
171206 H21  0.1+  0.2+    171220 I52  0.1-  0.2-    211011 T14  0.0   0.0
171206 L01  0.1+  0.1+    171225 F51  0.1+  0.1+    211029 T14  0.0   0.0
171206 L01  0.9+  0.1+    171225 F51  0.1-  0.0     211030 T14  0.0   0.0
171206 L01  0.0   0.4+    171225 F51  0.1-  0.2-
171207 691  0.5+  0.4+    171228 I52  0.2+  0.2+

Ephemeris:
2017 XC                  a,e,i = 2.37, 0.60, 34                  q = 0.9479
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 06 29    13 54 48.7 -16 47 13   1.9391  2.5425   115.1    21.2    24.5
...
2024 07 14    13 50 35.7 -18 00 24   2.0519  2.4471   100.3    24.1    24.7
...
2024 07 22    13 51 05.2 -18 49 01   2.1142  2.3945    93.1    25.1    24.7
...
2024 07 28    13 52 36.3 -19 29 43   2.1601  2.3543    88.0    25.5    24.7
2024 07 29    13 52 57.0 -19 36 51   2.1676  2.3475    87.2    25.6    24.7
2024 07 30    13 53 19.2 -19 44 04   2.1751  2.3407    86.3    25.6    24.7
...
2024 08 05    13 56 04.4 -20 29 29   2.2187  2.2996    81.5    25.9    24.8
...
2024 08 13    14 01 05.6 -21 35 15   2.2729  2.2437    75.4    25.9    24.8
...
2024 08 28    14 14 22.1 -23 53 14   2.3576  2.1355    64.9    25.4    24.7

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-O86





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