[Iaude] MPEC X129: 2018 XO4 [a=1.28,e=0.24,i=3.1,H=25.3]

[mpec at mpcdb1.cfa.harvard.edu]

M.P.E.C. 2018-X129                               Issued 2018 Dec. 15, 17:38 UT
 
     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  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 XO4
 
Observations:
     K18X04O* C2018 12 13.21119 23 15 26.042+35 45 29.90         22.0 wUEX129F51
     K18X04O  C2018 12 13.22374 23 15 22.236+35 45 26.60         21.6 wUEX129F51
     K18X04O  C2018 12 13.23628 23 15 18.488+35 45 22.75         21.6 wUEX129F51
     K18X04O ^C2018 12 14.21683423 11 27.485+35 43 12.50         21.49GVEX129568
     K18X04O ^C2018 12 14.21783923 11 27.158+35 43 12.18         21.52GVEX129568
     K18X04O ^C2018 12 14.21884323 11 26.845+35 43 11.89         21.46GVEX129568
     K18X04O ^C2018 12 14.21985423 11 26.529+35 43 11.56         21.40GVEX129568
     K18X04O ^C2018 12 15.21869923 07 17.000+35 40 31.30         21.43GVEX129568
     K18X04O ^C2018 12 15.21965223 07 16.690+35 40 31.01         21.37GVEX129568
     K18X04O ^C2018 12 15.22060523 07 16.365+35 40 30.63         21.56GVEX129568
 
Observer details:
568 Mauna Kea.  Observers R. Wainscoat, C. Wipper, A. Petric.  Measurers
    R. Weryk, R. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
    M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, J. Fairlamb,
    H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
    R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
 
Orbital elements:
2018 XO4                                                 Earth MOID = 0.0141 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  72.16420              (2000.0)            P               Q
n   0.68308870     Peri.  173.35827     -0.36347645     -0.93035213
a   1.2768836      Node   297.94619     +0.85219592     -0.31111662
e   0.2436822      Incl.    3.13217     +0.37636017     -0.19403959
P   1.44           H   25.3           G   0.15           U   5
Residuals in seconds of arc
181213 F51  0.1+  0.0     181214 568  0.0   0.0     181215 568  0.0   0.0
181213 F51  0.2-  0.0     181214 568  0.0   0.0     181215 568  0.1-  0.0
181213 F51  0.1+  0.0     181214 568  0.0   0.0
181214 568  0.1+  0.0     181215 568  0.0   0.0

Ephemeris:
2018 XO4                 a,e,i = 1.28, 0.24, 3                   q = 0.9657
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 15    00 38 37.7 +35 36 20   0.1124  1.0784   140.6    35.6    22.2
...
2018 11 30    23 57 03.5 +36 00 03   0.08253 1.0314   121.1    54.9    22.0
...
2018 12 08    23 33 28.5 +35 53 27   0.06760 1.0103   110.1    66.3    21.8
...
2018 12 14    23 12 23.6 +35 43 05   0.05631 0.9968   101.1    75.7    21.7
2018 12 15    23 08 17.3 +35 40 29   0.05442 0.9947    99.5    77.4    21.7
2018 12 16    23 03 56.3 +35 37 26   0.05252 0.9927    97.9    79.1    21.6
...
2018 12 22    22 30 11.0 +34 57 53   0.04112 0.9822    86.7    90.9    21.5
...
2018 12 30    21 04 59.5 +30 21 13   0.02712 0.9720    64.6   114.0    21.8
...
2019 01 14    16 25 38.5 -13 58 10   0.02587 0.9660    46.8   132.1    23.2

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X129