[Iaude] MPEC F04: 2018 EG4 [a=13.30,e=0.67,i=17.5,H=15.5]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Fri Mar 16 13:49:17 EDT 2018


M.P.E.C. 2018-F04                                Issued 2018 Mar. 16, 17:45 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 EG4
 
Observations:
     K18E04G* C2018 03 07.33294 11 39 03.194+18 23 04.32         22.1 wUEF004F51
     K18E04G  C2018 03 07.34460 11 39 02.830+18 23 05.11         22.1 wUEF004F51
     K18E04G  C2018 03 07.35622 11 39 02.457+18 23 06.28         22.3 wUEF004F51
     K18E04G  C2018 03 07.36787 11 39 02.100+18 23 06.84         22.1 wUEF004F51
     K18E04G |C2018 03 09.17218 11 38 06.71 +18 25 02.5          21.8 GUEF004807
     K18E04G |C2018 03 09.17963 11 38 06.46 +18 25 03.1          22.0 GUEF004807
     K18E04G |C2018 03 09.18731 11 38 06.23 +18 25 03.4          22.2 GUEF004807
     K18E04G KC2018 03 14.20035411 35 31.65 +18 29 03.4          22.7 VuEF004H21
     K18E04G KC2018 03 14.21152011 35 31.27 +18 29 04.1          22.6 VuEF004H21
     K18E04G KC2018 03 14.22774111 35 30.76 +18 29 05.0          22.8 VuEF004H21
     K18E04G KC2018 03 16.20869611 34 29.88 +18 30 08.2          22.2 VuEF004H21
     K18E04G KC2018 03 16.22300211 34 29.46 +18 30 08.9          22.5 VuEF004H21
     K18E04G KC2018 03 16.23648211 34 29.02 +18 30 09.5          22.2 VuEF004H21
 
Observer details:
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
    astrograph + CCD, 1.3-m f/4.0 astrograph + CCD.
 
Orbital elements:
2018 EG4
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M   6.27198              (2000.0)            P               Q
n   0.02031731     Peri.   99.20565     -0.59195721     -0.79291757
a  13.3012336      Node    28.66903     +0.56910575     -0.53813700
e   0.6704927      Incl.   17.52449     +0.57070596     -0.28581515
P  48.51           H   15.5           G   0.15           U   5
Residuals in seconds of arc
180307 F51  0.0   0.1-    180309 807  0.1-  0.1+    180316 H21  0.2-  0.3-
180307 F51  0.0   0.1-    180309 807  0.1+  0.0     180316 H21  0.2+  0.0
180307 F51  0.1-  0.2+    180314 H21  0.2+  0.3-    180316 H21  0.0   0.3+
180307 F51  0.0   0.0     180314 H21  0.2-  0.0
180309 807  0.1+  0.0     180314 H21  0.1-  0.3+

Ephemeris:
2018 EG4                 a,e,i = 13.30, 0.67, 18                 q = 4.3829
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 02 14    11 48 49.2 +17 48 18   3.8549  4.7416   150.8     5.8    22.3
...
2018 03 01    11 42 13.3 +18 14 49   3.8240  4.7797   162.9     3.5    22.1
...
2018 03 09    11 38 12.0 +18 24 51   3.8339  4.8007   165.3     3.0    22.1
...
2018 03 15    11 35 07.0 +18 29 33   3.8537  4.8167   163.8     3.3    22.2
2018 03 16    11 34 36.3 +18 30 03   3.8580  4.8194   163.3     3.4    22.2
2018 03 17    11 34 05.7 +18 30 29   3.8627  4.8221   162.8     3.5    22.2
...
2018 03 23    11 31 05.6 +18 31 17   3.8965  4.8385   158.7     4.3    22.3
...
2018 03 31    11 27 21.8 +18 27 19   3.9572  4.8606   151.8     5.6    22.4
...
2018 04 15    11 21 44.0 +18 03 49   4.1149  4.9032   137.7     7.9    22.6

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-F04



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