[Iaude] MPEC F09: 2018 EK4 [a=1.71,e=0.40,i=8.1,H=24.5]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Fri Mar 16 14:05:17 EDT 2018
M.P.E.C. 2018-F09 Issued 2018 Mar. 16, 18:01 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 EK4
Observations:
K18E04K* C2018 03 14.18778 08 49 02.23 +20 24 11.3 20.2 GUEF009G96
K18E04K C2018 03 14.19576 08 49 05.64 +20 23 00.6 20.7 GUEF009G96
K18E04K C2018 03 14.20091 08 49 07.89 +20 22 14.5 20.6 GUEF009G96
K18E04K C2018 03 14.20608 08 49 10.08 +20 21 29.1 20.6 GUEF009G96
K18E04K C2018 03 14.24083 08 49 25.03 +20 16 18.1 20.9 GUEF009I52
K18E04K C2018 03 14.24208 08 49 25.56 +20 16 07.5 20.4 GUEF009I52
K18E04K C2018 03 14.24332 08 49 26.14 +20 15 55.7 20.0 GUEF009I52
K18E04K C2018 03 14.24456 08 49 26.63 +20 15 45.1 20.5 GUEF009I52
K18E04K KC2018 03 14.87898 08 54 21.14 +18 41 37.0 UEF009587
K18E04K KC2018 03 14.88752 08 54 24.75 +18 40 21.5 20.8 GUEF009587
K18E04K KC2018 03 14.89379 08 54 27.42 +18 39 25.6 UEF009587
K18E04K KC2018 03 15.20324908 56 46.15 +17 54 07.2 21.2 VuEF009H21
K18E04K KC2018 03 15.20708408 56 47.75 +17 53 33.4 20.8 VuEF009H21
K18E04K KC2018 03 15.21446908 56 50.85 +17 52 28.2 20.7 VuEF009H21
K18E04K KC2018 03 16.09397009 03 23.67 +15 44 38.0 21.3 VuEF009H21
K18E04K KC2018 03 16.10146309 03 26.68 +15 43 33.2 21.1 VuEF009H21
K18E04K KC2018 03 16.10700309 03 28.91 +15 42 45.7 20.9 VuEF009H21
K18E04K C2018 03 16.17870 09 03 59.73 +15 32 38.3 20.9 GUEF009G96
K18E04K C2018 03 16.18386 09 04 01.77 +15 31 54.0 20.7 GUEF009G96
K18E04K C2018 03 16.18901 09 04 03.84 +15 31 10.2 20.6 GUEF009G96
K18E04K C2018 03 16.19418 09 04 05.86 +15 30 24.2 20.1 GUEF009G96
K18E04K C2018 03 16.27544 09 04 37.99 +15 18 41.8 20.4 GUEF009I52
K18E04K C2018 03 16.27793 09 04 38.98 +15 18 20.4 20.5 GUEF009I52
K18E04K C2018 03 16.27917 09 04 39.45 +15 18 10.2 20.8 GUEF009I52
Observer details:
587 Sormano. Observers F. Manca, P. Sicoli, A. Testa. Measurer P. Sicoli.
0.5-m f/6.8 reflector + CCD.
G96 Mt. Lemmon Survey. Observers R. A. Kowalski, A. D. Grauer. 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, 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.
Orbital elements:
2018 EK4 Earth MOID = 0.0549 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 13.68654 (2000.0) P Q
n 0.44057362 Peri. 154.15050 -0.82659731 -0.56241550
a 1.7105025 Node 351.53582 +0.48898873 -0.69956507
e 0.3983953 Incl. 8.05786 +0.27861605 -0.44079193
P 2.24 H 24.5 G 0.15 U 7
Residuals in seconds of arc
180314 G96 0.2- 0.2- 180314 587 0.5+ 0.1- 180316 H21 0.2+ 0.0
180314 G96 0.4- 0.1+ 180314 587 0.3+ 0.0 180316 G96 0.2- 0.0
180314 G96 0.1+ 0.2- 180314 587 0.5+ 0.4- 180316 G96 0.2- 0.2+
180314 G96 0.3- 0.4+ 180315 H21 0.3- 0.1- 180316 G96 0.3+ 0.7+
180314 I52 0.1+ 0.3- 180315 H21 0.3- 0.1+ 180316 G96 0.0 0.7-
180314 I52 0.0 0.3+ 180315 H21 0.2- 0.3+ 180316 I52 0.2+ 0.4-
180314 I52 0.7+ 0.4- 180316 H21 0.1- 0.1+ 180316 I52 0.2+ 0.2-
180314 I52 0.1+ 0.1+ 180316 H21 0.1+ 0.2- 180316 I52 0.1- 0.3+
Ephemeris:
2018 EK4 a,e,i = 1.71, 0.40, 8 q = 1.0290
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 02 14 04 22 07.4 +57 56 56 0.1325 1.0309 105.5 67.4 22.5
...
2018 03 01 06 42 08.0 +48 02 44 0.09352 1.0336 114.9 60.4 21.6
...
2018 03 09 08 04 17.6 +33 02 51 0.08307 1.0450 127.1 49.2 21.0
...
2018 03 15 08 55 16.2 +18 24 44 0.08473 1.0579 137.0 39.9 20.8
2018 03 16 09 02 40.9 +15 59 00 0.08590 1.0604 138.3 38.6 20.8
2018 03 17 09 09 47.6 +13 36 20 0.08733 1.0630 139.6 37.3 20.8
...
2018 03 23 09 46 43.8 +01 01 51 0.1007 1.0804 144.7 32.2 21.0
...
2018 03 31 10 23 48.4 -10 25 48 0.1285 1.1082 146.4 29.9 21.6
...
2018 04 15 11 11 10.5 -20 33 58 0.2005 1.1721 144.5 29.8 22.7
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-F09
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