2018 EF4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2093320647 ± 2.72e-05
Semi-major axis (a)1.1800517929 AU ± 3.35e-05
Inclination (i)5.47216263° ± 6.57e-04
Long. of Asc. Node (Ω)167.44203532° ± 9.04e-05
Arg. of Perihelion (ω)309.28774024° ± 4.48e-04
Mean Anomaly (M)37.45440065° ± 9.41e-02
Mean Motion (n)0.7688837326°/day ± 3.28e-05
Perihelion dist (q)0.93302911 AU ± 4.16e-05
Aphelion dist (Q)1.42707447 AU ± 5.17e-05
Orbital Period1.28189249 yr ± 5.46e-05
Physical Parameters
H (abs. magnitude)26.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.340″
Uncertainty2
Orbit TypeApollo
MOID0.002182 AU
Observations Used72
Oppositions1
Arc Total2018-2018
First Observation Used2018-03-13
Last Observation Used2018-04-13
Observations (74)
Date Type RA Dec Mag Band Observatory
2018-03-13 04:44:45 C 09 52 31.49 +37 42 45.2 U 703
2018-03-13 04:53:01 C 09 52 43.02 +37 42 52.5 U 703
2018-03-13 05:01:20 C 09 52 54.67 +37 42 59.0 U 703
2018-03-13 05:17:20 C 09 53 16.99 +37 43 08.1 U 703
2018-03-13 05:24:43 C 09 53 27.16 +37 43 12.7 U 703
2018-03-13 05:32:08 C 09 53 37.50 +37 43 16.3 U 703
2018-03-13 05:39:35 C 09 53 47.91 +37 43 23.2 U 703
2018-03-13 08:48:54 C 09 58 02.69 +37 41 03.9 u H21
2018-03-13 08:52:17 C 09 58 07.49 +37 41 01.7 u H21
2018-03-13 08:54:38 C 09 58 10.87 +37 41 00.0 u H21
2018-03-13 08:57:00 C 09 58 14.22 +37 40 58.3 u H21
2018-03-13 08:59:54 C 09 58 18.40 +37 40 56.4 u H21
2018-03-13 19:57:24 C 10 14 21.58 +37 38 40.5 U J95
2018-03-13 20:05:13 C 10 14 31.26 +37 38 40.7 U J95
2018-03-13 20:54:21 C 10 15 43.30 +37 40 45.8 U J04
2018-03-13 20:54:36 C 10 15 43.58 +37 40 45.8 U J04
2018-03-13 20:54:51 C 10 15 43.88 +37 40 45.9 U J04
2018-03-13 20:58:42 C 10 15 33.27 +37 39 44.3 19.5 U K63
2018-03-13 21:04:34 C 10 15 40.17 +37 39 42.2 19.6 U K63
2018-03-13 21:10:36 C 10 15 47.46 +37 39 40.0 19.9 U K63
2018-03-13 21:12:56 C 10 15 54.04 +37 38 30.9 U J95
2018-03-13 21:16:43 C 10 15 58.59 +37 38 30.4 U J95
2018-03-13 21:20:30 C 10 16 03.12 +37 38 28.7 U J95
2018-03-13 21:49:36 C 10 16 35.79 +37 39 20.5 q C95
2018-03-13 21:53:23 C 10 16 33.69 +37 38 50.3 o K88
2018-03-13 21:58:39 C 10 16 39.97 +37 38 46.4 o K88
2018-03-13 22:03:55 C 10 16 46.15 +37 38 42.6 o K88
2018-03-13 22:16:09 C 10 17 06.90 +37 39 06.8 q C95
2018-03-13 23:14:40 C 10 18 27.19 +37 40 20.3 q J22
2018-03-13 23:18:18 C 10 18 31.38 +37 40 18.8 q J22
2018-03-13 23:22:08 C 10 18 35.68 +37 40 16.5 q J22
2018-03-14 00:43:05 C 10 19 56.41 +37 36 34.7 U 204
2018-03-14 00:51:07 C 10 20 05.72 +37 36 24.8 U 204
2018-03-14 00:57:58 C 10 20 13.70 +37 36 16.0 U 204
2018-03-14 04:30:23 C 10 25 04.16 +37 35 17.2 U I52
2018-03-14 04:30:38 C 10 25 04.49 +37 35 15.8 U I52
2018-03-14 04:30:54 C 10 25 04.74 +37 35 16.5 U I52
2018-03-14 04:31:09 C 10 25 05.01 +37 35 15.5 U I52
2018-03-14 11:37:59 C 10 33 21.65 +37 27 16.4 r P93
2018-03-14 11:40:59 C 10 33 24.74 +37 27 15.0 r P93
2018-03-14 11:43:59 C 10 33 27.69 +37 27 13.2 r P93
2018-03-14 11:49:57 C 10 33 33.77 +37 27 09.3 r P93
2018-03-14 19:03:15 C 10 41 18.22 +37 16 18.1 U 587
2018-03-14 19:05:59 C 10 41 20.87 +37 16 16.1 U 587
2018-03-14 19:08:43 C 10 41 23.53 +37 16 14.0 U 587
2018-03-14 19:12:06 C 10 41 22.32 +37 16 34.7 t L04
2018-03-14 19:23:07 C 10 41 32.73 +37 16 24.7 t L04
2018-03-14 19:35:42 C 10 41 44.53 +37 16 12.3 t L04
2018-03-14 20:00:31 C 10 42 11.90 +37 15 34.2 U K51
2018-03-14 20:03:48 C 10 42 14.98 +37 15 31.1 U K51