[Iaude] MPEC X125: 2018 XM4 [a=1.84,e=0.47,i=3.1,H=24.2]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sat Dec 15 07:45:16 EST 2018


M.P.E.C. 2018-X125                               Issued 2018 Dec. 15, 12:41 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 XM4
 
Observations:
     K18X04M  C2018 10 10.35190523 38 18.943-19 40 11.89         22.0 GVEX125F52
     K18X04M  C2018 10 10.36365823 38 17.731-19 40 24.64         21.3 GVEX125F52
     K18X04M  C2018 10 10.37543323 38 16.566-19 40 36.71         21.5 GVEX125F52
     K18X04M  C2018 10 10.38717423 38 15.423-19 40 48.74         21.5 GVEX125F52
     K18X04M* C2018 12 14.50076 12 58 02.49 -07 03 20.8          18.7 GVEX125703
     K18X04M  C2018 12 14.50585 12 57 53.98 -07 00 59.6          18.9 GVEX125703
     K18X04M  C2018 12 14.51604 12 57 36.89 -06 56 15.4          19.5 GVEX125703
     K18X04M  C2018 12 14.53997 12 56 57.01 -06 45 14.9          19.6 GVEX125703
     K18X04M  C2018 12 14.54050 12 56 56.17 -06 45 01.3          18.9 GVEX125703
     K18X04M  C2018 12 14.54102 12 56 55.30 -06 44 46.1          19.8 GVEX125703
     K18X04M  C2018 12 14.54155 12 56 54.43 -06 44 32.2          19.6 GVEX125703
     K18X04M  C2018 12 14.55454 12 56 32.84 -06 38 35.0          18.7 GVEX125G96
     K18X04M  C2018 12 14.55466 12 56 32.59 -06 38 32.1          19.1 GVEX125G96
     K18X04M  C2018 12 14.55477 12 56 32.42 -06 38 29.6          19.5 GVEX125G96
     K18X04M  C2018 12 14.55489 12 56 32.21 -06 38 26.2          19.4 GVEX125G96
     K18X04M KC2018 12 15.13754712 44 08.08 -02 41 38.8          18.9 GVEX125L01
     K18X04M pC2018 12 15.14324012 44 00.92 -02 39 35.5          19.2 GVEX125L01
     K18X04M KC2018 12 15.14434512 43 59.53 -02 39 12.2          19.1 GVEX125L01
 
Observer details:
703 Catalina Sky Survey.  Observer R. A. Kowalski.  Measurers B. M. Africano,
    E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman,
    F. C. Shelly.  0.68-m Schmidt + 10K CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes,
    T. Lowe, E. Magnier, A. Schultz, M. Willman.  Measurers S. Chastel,
    M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien
    + CCD.
G96 Mt. Lemmon Survey.  Observer A. R. Gibbs.  Measurers B. M. Africano,
    E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman,
    F. C. Shelly.  1.5-m reflector + 10K CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
 
Orbital elements:
2018 XM4                                                 Earth MOID = 0.0035 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  55.15120              (2000.0)            P               Q
n   0.39413253     Peri.  351.83811     +0.25878812     -0.96443079
a   1.8423601      Node    83.15140     +0.88926308     +0.21610084
e   0.4703712      Incl.    3.11023     +0.37714704     +0.15222905
P   2.50           H   24.2           G   0.15           U   7
Residuals in seconds of arc
181010 F52  0.5+  0.2+    181214 703  1.4-  0.8+    181214 G96  0.0   0.1+
181010 F52  0.2-  0.2-    181214 703  0.7-  0.4+    181214 G96  0.2+  0.4-
181010 F52  0.3-  0.0     181214 703  0.1-  0.6-    181214 G96  0.0   0.3-
181010 F52  0.0   0.1+    181214 703  0.1-  0.3+    181215 L01  0.2+  0.6+
181214 703  0.6+  0.0     181214 703  0.1+  0.4-    181215 L01  0.1+  0.4+
181214 703  0.1+  0.5-    181214 G96  0.7+  0.5+    181215 L01  0.0   0.2-

Ephemeris:
2018 XM4                 a,e,i = 1.84, 0.47, 3                   q = 0.9758
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 15    22 58 43.6 -26 58 24   0.09894 1.0148   102.2    72.3    21.7
...
2018 11 30    22 38 18.6 -31 33 03   0.04527 0.9811    82.1    95.3    20.8
...
2018 12 08    21 12 57.5 -44 26 20   0.01666 0.9759    56.0   123.2    20.4
...
2018 12 14    13 11 41.6 -11 16 55   0.01268 0.9783    60.9   118.4    19.4
2018 12 15    12 46 31.5 -03 26 22   0.01561 0.9792    70.7   108.5    19.2
2018 12 16    12 29 59.7 +01 50 22   0.01886 0.9803    77.6   101.3    19.2
...
2018 12 22    11 50 37.2 +14 05 08   0.04036 0.9897    97.5    80.2    20.0
...
2018 12 30    11 34 40.0 +18 28 14   0.06961 1.0098   110.5    65.8    20.8
...
2019 01 14    11 15 24.0 +21 43 08   0.1237  1.0677   130.3    44.6    21.5

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-X125



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