[Iaude] MPEC F109: 2018 FE4 [a=1.65,e=0.61,i=19.3,H=25.0]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Thu Mar 22 15:57:16 EDT 2018


M.P.E.C. 2018-F109                               Issued 2018 Mar. 22, 19:53 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 FE4
 
Observations:
     K18F04E  C2018 03 20.45910 12 30 31.754-13 43 03.14         21.0 wUEF109F51
     K18F04E  C2018 03 20.47074 12 30 33.290-13 41 55.72         21.4 wUEF109F51
     K18F04E* C2018 03 21.40390 12 33 17.55 -12 02 31.5          20.5 GUEF109G96
     K18F04E  C2018 03 21.40870 12 33 18.29 -12 01 58.9          20.5 GUEF109G96
     K18F04E  C2018 03 21.41305 12 33 19.03 -12 01 26.2          21.0 GUEF109G96
     K18F04E  C2018 03 21.41738 12 33 19.75 -12 00 56.3          20.7 GUEF109G96
     K18F04E  C2018 03 21.44435 12 33 24.36 -11 57 41.7          21.8 GUEF109I52
     K18F04E  C2018 03 21.44559 12 33 24.57 -11 57 32.9          21.6 GUEF109I52
     K18F04E  C2018 03 21.44808 12 33 24.95 -11 57 14.8          21.8 GUEF109I52
     K18F04E  C2018 03 22.33047 12 36 38.15 -10 00 29.4          20.4 GUEF109I52
     K18F04E  C2018 03 22.33213 12 36 38.49 -10 00 15.1          20.5 GUEF109I52
     K18F04E  C2018 03 22.33379 12 36 38.79 -10 00 01.1          20.4 GUEF109I52
 
Observer details:
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.
G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  Measurers B. M. Africano,
    E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
    R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly.
    1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observers B. M. Africano,
    E. J. Christensen.  Measurers B. M. Africano, E. J. Christensen,
    D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
    S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly.  1.0-m reflector
    + CCD.
 
Orbital elements:
2018 FE4                                                 Earth MOID = 0.0072 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 333.30602              (2000.0)            P               Q
n   0.46350666     Peri.   92.41806     +0.10309991     +0.99444182
a   1.6536061      Node   183.70836     -0.99215736     +0.10129059
e   0.6071149      Incl.   19.27566     -0.07066949     +0.02873454
P   2.13           H   25.0           G   0.15           U   8
Residuals in seconds of arc
180320 F51  0.0   0.1-    180321 G96  0.0   0.4+    180321 I52  0.6-  0.3+
180320 F51  0.0   0.1+    180321 G96  0.1-  0.6-    180322 I52  0.1+  0.4+
180321 G96  0.7+  0.4+    180321 I52  0.2+  0.3+    180322 I52  0.2+  0.1+
180321 G96  0.2-  1.2-    180321 I52  0.2+  0.2+    180322 I52  0.4-  0.5-

Ephemeris:
2018 FE4                 a,e,i = 1.65, 0.61, 19                  q = 0.6497
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 02 20    12 03 35.8 -22 25 19   0.4899  1.3870   136.8    29.2    25.4
...
2018 03 07    12 13 08.7 -21 56 15   0.2838  1.2429   148.4    24.7    23.9
...
2018 03 15    12 20 32.1 -19 09 51   0.1820  1.1631   156.1    20.2    22.6
...
2018 03 21    12 32 03.9 -12 47 17   0.1096  1.1023   165.0    13.5    21.2
2018 03 22    12 35 22.6 -10 46 13   0.09809 1.0921   167.0    11.8    20.9
2018 03 23    12 39 28.5 -08 12 31   0.08676 1.0819   169.1    10.0    20.5
...
2018 03 29    14 12 27.7 +41 53 40   0.03480 1.0206   129.2    49.3    19.6
...
2018 04 06    23 11 45.6 +48 01 53   0.09447 0.9394    47.6   128.2    25.3
...
2018 04 21    23 54 59.5 +34 16 25   0.2750  0.7962    35.2   133.3    27.7

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-F109



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