[Iaude] MPEC F111: 2018 FJ4 [a=1.49,e=0.40,i=1.3,H=20.8,PHA]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Fri Mar 23 10:27:21 EDT 2018


M.P.E.C. 2018-F111                               Issued 2018 Mar. 23, 14:22 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 FJ4
 
Observations:
     K18F04J* C2018 03 18.41044 12 44 57.439-06 55 53.64         21.9 wUEF111F51
     K18F04J  C2018 03 18.42227 12 44 56.384-06 55 47.74         21.5 wUEF111F51
     K18F04J  C2018 03 18.43413 12 44 55.387-06 55 41.38         21.8 wUEF111F51
     K18F04J  C2018 03 18.44599 12 44 54.331-06 55 35.32         22.3 wUEF111F51
     K18F04J |C2018 03 19.25356 12 43 46.81 -06 48 19.0          21.7 GUEF111807
     K18F04J |C2018 03 19.25924 12 43 46.30 -06 48 15.8          21.9 GUEF111807
     K18F04J |C2018 03 19.26575 12 43 45.73 -06 48 12.4          21.8 GUEF111807
     K18F04J KC2018 03 21.38588 12 40 40.20 -06 28 41.1          21.9 RoEF111291
     K18F04J KC2018 03 21.39079 12 40 39.75 -06 28 37.3          21.3 RoEF111291
     K18F04J KC2018 03 21.39569 12 40 39.28 -06 28 35.2                oEF111291
     K18F04J |C2018 03 23.18644 12 37 53.76 -06 10 27.5          21.2 VuEF111807
     K18F04J |C2018 03 23.19230 12 37 53.18 -06 10 23.8          21.2 VuEF111807
     K18F04J |C2018 03 23.19853 12 37 52.57 -06 10 19.9          21.2 VuEF111807
 
Observer details:
291 LPL/Spacewatch II.  Observer A. F. Tubbiolo.  1.8-m f/2.7 reflector + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + CCD, 1.00-m f/10.0 astrograph + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
    M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
    M. Huber, E. Magnier, Y. Ramanjooloo, R. Wainscoat, C. Waters, R. Weryk.
    1.8-m Ritchey-Chretien + CCD.
 
Orbital elements:
2018 FJ4                                            PHA, Earth MOID = 0.0129 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 276.41726              (2000.0)            P               Q
n   0.53931296     Peri.   89.48648     +0.68267125     +0.73056807
a   1.4947738      Node   223.57935     -0.67887896     +0.62641483
e   0.4015881      Incl.    1.26130     -0.27033927     +0.27179909
P   1.83           H   20.8           G   0.15           U   9
Residuals in seconds of arc
180318 F51  0.1+  0.0     180319 807  0.2+  0.1+    180323 807  0.1-  0.1-
180318 F51  0.3-  0.2-    180319 807  0.3+  0.0     180323 807  0.0   0.0
180318 F51  0.2+  0.1+    180321 291  0.2-  0.4-    180323 807  0.2+  0.0
180318 F51  0.1-  0.0     180321 291  0.0   0.6+
180319 807  0.2+  0.0     180321 291  0.0   0.2-

Ephemeris:
2018 FJ4                 a,e,i = 1.49, 0.40, 1                   q = 0.8945
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 02 21    13 03 27.4 -08 41 09   0.9578  1.7926   134.1    23.3    23.1
...
2018 03 08    12 56 27.8 -08 05 38   0.7920  1.7281   150.9    16.2    22.4
...
2018 03 16    12 48 06.6 -07 15 32   0.7192  1.6912   161.1    11.0    21.9
...
2018 03 22    12 39 44.5 -06 22 32   0.6732  1.6624   169.3     6.4    21.5
2018 03 23    12 38 11.3 -06 12 28   0.6663  1.6575   170.7     5.6    21.5
2018 03 24    12 36 35.6 -06 02 04   0.6596  1.6526   172.0     4.8    21.4
...
2018 03 30    12 26 16.1 -04 53 10   0.6243  1.6226   177.9     1.3    21.0
...
2018 04 07    12 11 08.3 -03 08 07   0.5900  1.5811   166.8     8.3    21.2
...
2018 04 22    11 43 36.3 +00 14 57   0.5624  1.4991   144.5    22.9    21.5

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-F111



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