[Iaude] MPEC V234: 2018 VN7 [a=1.16,e=0.17,i=23.5,H=25.28]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon Nov 13 10:54:05 EST 2023


M.P.E.C. 2023-V234                            Issued 2023 November 13, 15:52 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

                                    2018 VN7                                    


                           Revision to MPEC 2018-V176                           

Additional Observations:
     K18V07N  C2023 11 10.24870 01 22 24.14 -21 59 24.0                VEV234703
     K18V07N  C2023 11 10.25399 01 22 43.57 -22 07 04.5          16.8 GVEV234703
     K18V07N  C2023 11 10.25929 01 23 03.13 -22 14 48.4                VEV234703
     K18V07N KC2023 11 12.18816 02 41 41.15 -43 44 14.6          18.7 GVEV234W94
     K18V07N KC2023 11 12.19426 02 41 48.89 -43 45 54.0          18.8 GVEV234W94
     K18V07N KC2023 11 12.20035 02 41 56.56 -43 47 32.9          18.8 GVEV234W94
     K18V07N  C2023 11 12.27133002 43 27.81 -44 05 14.1                WEV234X09
     K18V07N  C2023 11 12.27485502 43 32.17 -44 06 06.5                WEV234X09
     K18V07N 2C2023 11 13.17185303 01 15.016-47 07 13.89         19.3 GXEV234W57
     K18V07N 2C2023 11 13.19016 03 01 29.85 -47 10 01.7          19.4 GXEV234W57
     K18V07N 2C2023 11 13.19865 03 01 36.73 -47 11 17.8          19.9 GXEV234W57

Observer details:
703 Catalina Sky Survey.  Observer R. A. Kowalski.  Measurers B. Gray, D.
    Rankin, F. C. Shelly.  0.68-m Schmidt + 10K CCD.
W57 ESA TBT La Silla Observatory.  Observers F. Ocana, M. Micheli, R.
    Kresken, L. Conversi.  Measurers F. Ocana, M. Micheli, R. Kresken.
    0.56-m f/2.52 astrograph prime-focus corrector + 4K CCD.
W94 MAP, San Pedro de Atacama.  Observers A. Maury, G. Attard.  Measurers A.
    Maury, G. Attard, D. Parrott, F. Signoret, J.-M. Mari.  0.36-m f/1.9
    Schmidt astrograph + CCD.
X09 Deep Random Survey, Rio Hurtado.  Observers A. Schnabel, D. Ruhela.
    Measurer S. Deen.  0.43-m reflector + CMOS.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
231110 703   89-   11-    231113 W57   43-   20-    MPO467108   -2.95 days

Orbital elements:
2018 VN7                                                 Earth MOID = 0.0058 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 341.39229              (2000.0)            P               Q                  
n   0.78823880     Peri.  142.85512     +0.95126053     -0.10976828             
a   1.1606399      Node   226.21305     +0.08059063     +0.99051800             
e   0.1656467      Incl.   23.52834     +0.29767188     +0.08261368             
P   1.25           H   25.28          G   0.15           U   0                  
Residuals in seconds of arc
181109 T08  0.2+  0.3-    181110 T08  0.5-  1.1+    231112 W94  0.3-  0.6-
181109 T08  0.4+  0.2+    181110 T08  0.2+  2.5-    231112 W94  0.4+  0.4-
181109 T08  0.2+  0.8-    181111 E23  0.1+  0.3-    231112 W94  0.6+  0.6-
181110 T08  0.0   0.7+    181111 E23  0.1-  0.3+    231112 X09  1.2+  0.7+
181110 T08  0.4-  2.5+    181111 E23  0.0   0.8-    231112 X09  0.4+  0.9+
181110 T08  0.3+  0.1+    231110 703  0.7+  1.2-    231113 W57  0.1+  0.2+
181110 T08  0.4-  0.2+    231110 703  0.8-  1.8+    231113 W57  0.4-  0.4-
181110 T08  0.3-  0.1+    231110 703  0.2-  0.4-    231113 W57  0.4-  0.3-

Ephemeris:
2018 VN7                 a,e,i = 1.16, 0.17, 24                  q = 0.9684
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 10 14    16 32 59.7 +56 32 17   0.1931  0.9698    76.2    92.7    24.9
...
2023 10 29    16 59 02.3 +58 18 45   0.08538 0.9812    79.3    95.8    23.3
...
2023 11 06    18 40 16.5 +60 23 17   0.02611 0.9917    89.7    88.8    20.5
...
2023 11 12    02 37 00.5 -42 46 06   0.02237 1.0012   119.4    59.5    19.2
2023 11 13    02 58 21.2 -46 38 00   0.02957 1.0029   115.6    62.9    19.9
2023 11 14    03 12 46.1 -48 49 16   0.03692 1.0047   113.2    64.9    20.4
...
2023 11 20    03 48 33.9 -52 52 40   0.08173 1.0160   107.6    68.0    22.3
...
2023 11 28    04 02 29.3 -53 33 41   0.1410  1.0328   105.3    67.2    23.5
...
2023 12 13    04 11 57.4 -52 18 23   0.2470  1.0686   103.2    63.8    24.6

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-V234




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