MPEC 2018-F07 : 2018 EL4
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M.P.E.C. 2018-F07 Issued 2018 Mar. 16, 17:55 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2018 EL4
Observations:
K18E04L* C2018 03 14.20994 08 55 25.46 +21 00 50.9 20.2 GUEF007G96
K18E04L C2018 03 14.21513 08 55 28.59 +21 00 54.0 20.2 GUEF007G96
K18E04L C2018 03 14.22032 08 55 31.71 +21 00 57.8 20.3 GUEF007G96
K18E04L C2018 03 14.22550 08 55 34.85 +21 01 00.8 20.1 GUEF007G96
K18E04L C2018 03 14.25251 08 55 51.09 +21 01 16.6 19.9 GUEF007I52
K18E04L C2018 03 14.25347 08 55 51.65 +21 01 17.9 19.8 GUEF007I52
K18E04L C2018 03 14.25539 08 55 52.83 +21 01 19.2 19.6 GUEF007I52
K18E04L KC2018 03 14.82575 09 02 07.19 +21 06 30.3 18.6 UEF007K63
K18E04L KC2018 03 14.83185 09 02 09.07 +21 06 26.4 19.8 RoEF007K88
K18E04L KC2018 03 14.83647 09 02 13.19 +21 06 38.7 19.5 UEF007K63
K18E04L KC2018 03 14.83759 09 02 12.40 +21 06 30.2 19.8 RoEF007K88
K18E04L KC2018 03 14.84192 09 02 16.44 +21 06 36.6 19.8 GUEF007587
K18E04L KC2018 03 14.84213 09 02 16.43 +21 06 42.0 19.8 UEF007K63
K18E04L KC2018 03 14.84333 09 02 15.66 +21 06 33.4 19.8 RoEF007K88
K18E04L KC2018 03 14.84389 09 02 17.59 +21 06 38.2 19.9 GUEF007587
K18E04L KC2018 03 14.84763 09 02 19.71 +21 06 40.2 UEF007587
K18E04L KC2018 03 14.85137 09 02 21.83 +21 06 42.0 UEF007587
K18E04L KC2018 03 14.91519 09 02 57.68 +21 07 19.1 19.9 UEF007104
K18E04L KC2018 03 14.92200 09 03 01.57 +21 07 22.7 UEF007104
K18E04L KC2018 03 14.93014 09 03 06.14 +21 07 25.4 20.0 UEF007104
K18E04L KC2018 03 16.07546409 14 16.84 +21 15 01.2 20.4 VuEF007H21
K18E04L KC2018 03 16.08085809 14 19.49 +21 15 03.3 20.5 VuEF007H21
K18E04L KC2018 03 16.08757209 14 22.79 +21 15 05.8 20.4 VuEF007H21
K18E04L KC2018 03 16.16459109 15 00.11 +21 15 28.9 20.7 VuEF007H21
K18E04L KC2018 03 16.16819009 15 01.84 +21 15 29.8 20.5 VuEF007H21
K18E04L KC2018 03 16.17358709 15 04.44 +21 15 31.1 20.7 VuEF007H21
K18E04L C2018 03 16.26864 09 15 53.26 +21 16 10.9 19.8 GUEF007I52
K18E04L C2018 03 16.26906 09 15 53.47 +21 16 11.6 20.9 GUEF007I52
K18E04L C2018 03 16.26947 09 15 53.70 +21 16 11.3 19.6 GUEF007I52
K18E04L C2018 03 16.26988 09 15 53.87 +21 16 11.1 20.1 GUEF007I52
K18E04L C2018 03 16.28875 09 16 02.82 +21 16 13.9 20.4 GUEF007I52
K18E04L C2018 03 16.28916 09 16 03.02 +21 16 13.5 20.4 GUEF007I52
K18E04L C2018 03 16.28958 09 16 03.27 +21 16 13.2 UEF007I52
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD.
587 Sormano. Observers F. Manca, P. Sicoli, A. Testa. Measurers F. Manca,
P. Sicoli. 0.5-m f/6.8 reflector + 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. 0.76-m f/3.0
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.
K63 G. Pascoli Observatory, Castelvecchio Pascoli. Observer R. Bacci. 0.40-m
f/3.2 Newtonian reflector + CCD.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
Orbital elements:
2018 EL4 Earth MOID = 0.0054 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 77.29279 (2000.0) P Q
n 0.89769245 Peri. 270.91200 +0.18257243 -0.98313028
a 1.0642680 Node 168.55042 +0.92275873 +0.16745909
e 0.1979275 Incl. 3.19175 +0.33938713 +0.07356832
P 1.10 H 25.2 G 0.15 U 7
Residuals in seconds of arc
180314 G96 0.1- 0.3+ 180314 587 0.4- 0.3- 180316 H21 0.4+ 0.2+
180314 G96 0.0 0.1- 180314 K63 0.2- 0.2- 180316 H21 0.0 0.1-
180314 G96 0.1- 0.3+ 180314 K88 0.2+ 0.6+ 180316 H21 0.0 0.0
180314 G96 0.3+ 0.1- 180314 587 0.0 0.1+ 180316 H21 0.1- 0.1+
180314 I52 0.1+ 0.8- 180314 587 0.1- 0.0 180316 I52 0.3- 0.4-
180314 I52 0.1- 0.0 180314 587 0.2- 0.3- 180316 I52 0.2- 0.3+
180314 I52 0.2+ 0.2+ 180314 104 0.1- 0.1- 180316 I52 0.3+ 0.1-
180314 K63 (0.9+ 2.2-) 180314 104 0.6+ 0.6+ 180316 I52 0.0 0.3-
180314 K88 0.3- 0.2- 180314 104 0.1+ 0.0 180316 I52 0.5- 0.3+
180314 K63 0.6- 0.2- 180316 H21 0.3+ 0.3+ 180316 I52 0.4- 0.1-
180314 K88 0.4+ 0.4+ 180316 H21 0.3+ 0.3+ 180316 I52 0.3+ 0.4-
Ephemeris:
2018 EL4 a,e,i = 1.06, 0.20, 3 q = 0.8536
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 02 14 00 48 24.9 -15 36 34 0.07027 0.9377 43.4 133.6 25.4
...
2018 03 01 04 00 33.4 +00 55 55 0.02890 0.9855 78.8 99.6 21.1
...
2018 03 09 07 34 24.1 +18 15 56 0.03400 1.0123 124.2 54.2 19.9
...
2018 03 15 09 03 52.0 +21 09 11 0.05053 1.0325 138.0 40.2 20.4
2018 03 16 09 13 31.3 +21 15 35 0.05374 1.0358 139.0 39.0 20.5
2018 03 17 09 22 10.4 +21 18 57 0.05704 1.0392 139.9 38.1 20.6
...
2018 03 23 09 59 34.4 +21 03 24 0.07826 1.0592 141.8 35.5 21.3
...
2018 03 31 10 28 55.8 +20 03 12 0.1093 1.0854 140.5 35.8 22.0
...
2018 04 15 11 02 04.9 +17 29 23 0.1744 1.1317 134.2 39.5 23.2
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-F07
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