[Iaude] MPEC F05: 2018 EH4 [a=2.07,e=0.61,i=6.2,H=21.5,PHA]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Fri Mar 16 13:53:16 EDT 2018


M.P.E.C. 2018-F05                                Issued 2018 Mar. 16, 17:48 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 EH4
 
Observations:
     K18E04H  C2018 03 02.33109 07 34 41.163+39 38 18.93         20.0 iUEF005F51
     K18E04H  C2018 03 02.34310 07 34 48.772+39 37 19.41         19.7 iUEF005F51
     K18E04H  C2018 03 02.35513 07 34 56.398+39 36 19.14         19.7 iUEF005F51
     K18E04H* C2018 03 13.19639 08 49 43.37 +27 22 07.5          20.7 GUEF005G96
     K18E04H  C2018 03 13.20156 08 49 44.66 +27 21 51.2          20.4 GUEF005G96
     K18E04H  C2018 03 13.20674 08 49 45.94 +27 21 34.8          20.5 GUEF005G96
     K18E04H  C2018 03 13.21192 08 49 47.21 +27 21 18.9          20.5 GUEF005G96
     K18E04H KC2018 03 13.84629 08 52 29.10 +26 48 48.2                UEF005204
     K18E04H KC2018 03 13.86107 08 52 32.64 +26 48 04.1          20.2 GUEF005204
     K18E04H KC2018 03 13.86488 08 52 34.39 +26 47 59.6          20.1 GUEF005J04
     K18E04H KC2018 03 13.86715 08 52 34.94 +26 47 53.1          19.9 GUEF005J04
     K18E04H KC2018 03 13.86941 08 52 35.45 +26 47 46.5          19.9 GUEF005J04
     K18E04H KC2018 03 13.87456 08 52 35.90 +26 47 23.2                UEF005204
     K18E04H KC2018 03 13.91319 08 52 45.44 +26 45 24.4                UEF005J95
     K18E04H KC2018 03 13.92077 08 52 47.24 +26 45 00.8          20.4 GUEF005J95
     K18E04H KC2018 03 13.92456 08 52 47.62 +26 44 50.9          20.2 RoEF005K88
     K18E04H KC2018 03 13.92916 08 52 48.72 +26 44 37.0          19.7 RoEF005K88
     K18E04H KC2018 03 13.93377 08 52 49.84 +26 44 23.2          20.0 RoEF005K88
     K18E04H  C2018 03 14.11738 08 53 36.83 +26 35 21.1          20.5 GUEF005I52
     K18E04H  C2018 03 14.11814 08 53 36.99 +26 35 19.1          20.8 GUEF005I52
     K18E04H  C2018 03 14.11890 08 53 37.19 +26 35 16.9          20.2 GUEF005I52
     K18E04H  C2018 03 14.11966 08 53 37.35 +26 35 14.8          20.1 GUEF005I52
     K18E04H KC2018 03 14.13402 08 53 40.25 +26 34 29.6          20.4 RqEF005734
     K18E04H KC2018 03 14.13730 08 53 41.05 +26 34 19.9          20.5 RqEF005734
     K18E04H KC2018 03 14.14498508 53 42.63 +26 33 57.2          20.8 VuEF005H21
     K18E04H KC2018 03 14.14712 08 53 43.42 +26 33 51.0          20.3 RqEF005734
     K18E04H KC2018 03 14.15064608 53 43.94 +26 33 40.5          20.4 VuEF005H21
     K18E04H KC2018 03 14.16040808 53 46.22 +26 33 11.3          20.9 VuEF005H21
     K18E04H  C2018 03 14.58854 08 55 29.07 +26 12 13.3          20.7 RrEF005P93
     K18E04H  C2018 03 14.59339 08 55 30.08 +26 12 00.6          20.6 RrEF005P93
     K18E04H  C2018 03 14.59825 08 55 31.26 +26 11 46.0          20.7 RrEF005P93
     K18E04H KC2018 03 14.81439 08 56 23.68 +26 01 15.8          20.7 GUEF005587
     K18E04H KC2018 03 14.81649 08 56 24.13 +26 01 10.2                UEF005587
     K18E04H KC2018 03 14.82071 08 56 25.06 +26 00 58.2                UEF005587
     K18E04H KC2018 03 14.84390 08 56 30.17 +25 59 52.6          21.1 RUEF005K51
     K18E04H KC2018 03 14.84707 08 56 30.87 +25 59 43.1          20.9 RUEF005K51
     K18E04H KC2018 03 14.85024 08 56 31.59 +25 59 34.3          20.4 RUEF005K51
     K18E04H KC2018 03 14.85820308 56 34.249+25 59 18.71         20.4 GUEF005J04
     K18E04H KC2018 03 14.86121608 56 34.942+25 59 10.44         20.1 GUEF005J04
     K18E04H KC2018 03 14.86423308 56 35.620+25 59 01.39         20.8 GUEF005J04
     K18E04H  C2018 03 15.04602 08 57 15.86 +25 50 08.0          21.2 VSEF005033
     K18E04H  C2018 03 15.04977 08 57 16.70 +25 49 57.3          21.3 VSEF005033
     K18E04H  C2018 03 15.05352 08 57 17.56 +25 49 46.3          21.5 VSEF005033
     K18E04H  C2018 03 15.05728 08 57 18.44 +25 49 35.6          21.2 VSEF005033
     K18E04H  C2018 03 16.28371 09 01 52.36 +24 53 24.9          20.7 GUEF005I52
     K18E04H  C2018 03 16.28495 09 01 52.62 +24 53 21.6          20.7 GUEF005I52
     K18E04H  C2018 03 16.28619 09 01 52.86 +24 53 18.2          20.9 GUEF005I52
     K18E04H  C2018 03 16.28743 09 01 53.13 +24 53 14.4          20.6 GUEF005I52
 
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers U. Laux,
    B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector
    + CCD.
587 Sormano.  Observers F. Manca, P. Sicoli, A. Testa.  Measurers P. Sicoli,
    F. Manca.  0.5-m f/6.8 reflector + CCD.
734 Farpoint Observatory.  Observer G. Hug.  0.69-m reflector + 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.
G96 Mt. Lemmon Survey.  Observer R. A. Kowalski.  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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.61-m f/4.5
    astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observers D. C. Fuls,
    B. M. Africano, 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.
    1.0-m reflector + CCD.
J04 ESA Optical Ground Station, Tenerife.  Observer P. Ruiz.  Measurers
    A. Knoefel, D. Koschny, M. Busch, M. Micheli, E. Schwab.  1.0-m f/4.4
    reflector + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
    + CCD.
K51 Osservatorio del Celado, Castello Tesino.  Observers G. Favero, R. Furgoni.
    Measurer R. Furgoni.  0.80-m f/4 reflector + CCD.
K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  0.60-m Schmidt + CCD.
P93 Space Tracking and Communications Center, JAXA.  Observers S. Urakawa,
    A. Asami.  1.0-m f/3.0 reflector + CCD.
 
Orbital elements:
2018 EH4                                            PHA, Earth MOID = 0.0226 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M  25.04439              (2000.0)            P               Q
n   0.33104200     Peri.   74.38183     +0.20976319     -0.97772947
a   2.0695725      Node     3.53014     +0.85044947     +0.17908195
e   0.6144596      Incl.    6.21893     +0.48242626     +0.10942917
P   2.98           H   21.5           G   0.15           U   8
Residuals in seconds of arc
180302 F51  0.0   0.2-    180313 K88  0.0   0.5+    180314 587  1.0+  0.4-
180302 F51  0.0   0.2+    180313 K88  0.1+  0.7+    180314 587  0.7+  0.4-
180302 F51  0.0   0.1+    180314 I52  0.3-  0.1-    180314 K51  0.1-  0.4+
180313 G96  0.2-  0.2+    180314 I52  0.5-  0.1+    180314 K51  0.3-  0.0
180313 G96  0.1-  0.0     180314 I52  0.2-  0.1+    180314 K51  0.2-  0.3+
180313 G96  0.2-  0.2-    180314 I52  0.5-  0.3+    180314 J04  0.3-  0.4+
180313 G96  0.4-  0.0     180314 734  0.5-  0.3-    180314 J04  0.1-  0.7+
180313 204  0.3-  0.0     180314 734  0.0   0.3-    180314 J04  0.0   0.2+
180313 204  0.3-  0.3+    180314 H21  0.2+  0.1+    180315 033  0.1-  0.1+
180313 J04  0.2-  0.2-    180314 734  0.9+  0.1-    180315 033  0.3-  0.2+
180313 J04  0.1-  0.1+    180314 H21  0.0   0.2+    180315 033  0.3-  0.1+
180313 J04  0.4-  0.2+    180314 H21  0.1-  0.1+    180315 033  0.0   0.2+
180313 204  0.1+  0.1+    180314 P93  0.6+  1.4-    180316 I52  0.1-  0.1+
180313 J95  0.3+  0.2+    180314 P93  0.7-  0.1+    180316 I52  0.0   0.2+
180313 J95  0.1+  0.6-    180314 P93  0.3+  0.2-    180316 I52  0.3-  0.2+
180313 K88  0.0   0.4+    180314 587  1.3+  0.8-    180316 I52  0.1-  0.3-

Ephemeris:
2018 EH4                 a,e,i = 2.07, 0.61, 6                   q = 0.7979
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 02 14    02 07 13.6 +44 10 00   0.1578  0.9778    81.9    88.9    20.6
...
2018 03 01    07 19 05.1 +41 29 10   0.1895  1.1060   123.2    48.5    19.9
...
2018 03 09    08 28 29.8 +31 24 30   0.2534  1.1788   132.5    38.4    20.4
...
2018 03 15    08 57 06.2 +25 52 38   0.3125  1.2343   134.7    34.9    20.9
2018 03 16    09 00 51.5 +25 06 16   0.3230  1.2436   134.8    34.6    20.9
2018 03 17    09 04 24.1 +24 22 06   0.3337  1.2529   134.9    34.3    21.0
...
2018 03 23    09 22 17.2 +20 35 57   0.4015  1.3088   134.3    33.0    21.5
...
2018 03 31    09 40 28.4 +16 49 57   0.4999  1.3831   131.8    32.6    22.1
...
2018 04 15    10 06 44.3 +11 55 31   0.7057  1.5203   124.7    32.8    23.0

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-F05



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