2018 EA4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6278542773 ± 3.49e-05
Semi-major axis (a)2.8202212426 AU ± 2.57e-04
Inclination (i)14.94961169° ± 5.03e-04
Long. of Asc. Node (Ω)164.17525310° ± 1.73e-04
Arg. of Perihelion (ω)0.63024658° ± 2.06e-04
Mean Anomaly (M)224.97493146° ± 8.06e-02
Mean Motion (n)0.2081073921°/day ± 2.85e-05
Perihelion dist (q)1.04953327 AU ± 1.37e-04
Aphelion dist (Q)4.59090921 AU ± 4.30e-04
Orbital Period4.73614259 yr ± 6.48e-04
Physical Parameters
H (abs. magnitude)23.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.442″
Uncertainty2
Orbit TypeAmor
MOID0.057655 AU
Observations Used65
Oppositions1
Arc Total2018-2018
First Observation Used2018-03-12
Last Observation Used2018-05-09
Observations (68)
Date Type RA Dec Mag Band Observatory
2018-03-12 06:03:10 C 08 44 38.74 +30 02 49.5 U 703
2018-03-12 06:19:34 C 08 44 47.50 +30 04 47.6 U 703
2018-03-12 06:27:44 C 08 44 51.82 +30 05 46.5 U 703
2018-03-12 19:59:45 C 08 52 40.10 +31 42 41.2 t B49
2018-03-12 20:06:11 C 08 52 43.51 +31 43 25.1 t B49
2018-03-12 20:08:26 C 08 52 44.72 +31 43 40.5 t B49
2018-03-12 21:46:03 C 08 53 37.93 +31 55 03.7 o K88
2018-03-12 21:51:40 C 08 53 41.12 +31 55 43.8 o K88
2018-03-12 21:57:19 C 08 53 44.29 +31 56 23.5 o K88
2018-03-12 23:38:24 C 08 54 42.55 +32 08 21.4 q C95
2018-03-13 00:13:43 C 08 55 02.70 +32 12 26.6 q C95
2018-03-13 02:32:46 C 08 56 32.54 +32 29 08.1 U I52
2018-03-13 02:33:01 C 08 56 32.73 +32 29 10.6 U I52
2018-03-13 02:33:17 C 08 56 32.85 +32 29 11.3 U I52
2018-03-13 04:38:44 C 08 57 44.15 +32 43 59.6 U G96
2018-03-13 04:46:11 C 08 57 48.40 +32 44 52.0 U G96
2018-03-13 04:53:38 C 08 57 52.64 +32 45 44.6 U G96
2018-03-13 05:01:06 C 08 57 56.88 +32 46 36.7 U G96
2018-03-13 05:07:48 C 08 57 58.45 +32 47 07.8 u H21
2018-03-13 05:10:56 C 08 58 00.24 +32 47 29.3 u H21
2018-03-13 05:14:32 C 08 58 02.30 +32 47 54.3 u H21
2018-03-13 05:18:37 C 08 58 04.65 +32 48 22.5 u H21
2018-03-13 19:00:48 C 09 06 30.29 +34 22 42.2 U 204
2018-03-13 19:23:02 C 09 06 43.58 +34 25 15.3 U 204
2018-03-13 19:34:26 C 09 06 50.15 +34 26 33.1 U K51
2018-03-13 19:36:16 C 09 06 51.25 +34 26 46.0 U K51
2018-03-13 19:38:07 C 09 06 52.35 +34 26 58.1 U K51
2018-03-13 20:39:10 C 09 07 29.08 +34 33 57.9 19.0 U K63
2018-03-13 20:42:51 C 09 07 31.22 +34 34 22.5 19.2 U K63
2018-03-13 20:46:47 C 09 07 33.57 +34 34 49.0 19.1 U K63
2018-03-13 21:08:38 C 09 07 45.75 +34 37 09.9 o K88
2018-03-13 21:13:39 C 09 07 48.74 +34 37 43.9 o K88
2018-03-13 21:18:39 C 09 07 51.74 +34 38 17.2 o K88
2018-03-13 21:47:09 C 09 08 09.97 +34 41 34.9 q C77
2018-03-13 21:56:15 C 09 08 15.46 +34 42 39.0 q C77
2018-03-13 22:07:12 C 09 08 21.94 +34 43 50.7 q C77
2018-03-16 21:39:58 C 09 56 33.69 +41 52 39.9 U J95
2018-03-16 21:44:31 C 09 56 36.85 +41 53 03.4 U J95
2018-03-16 21:49:01 C 09 56 39.92 +41 53 26.5 U J95
2018-03-18 03:46:36 C 10 18 25.54 +44 14 42.7 U I52
2018-03-18 03:51:23 C 10 18 28.95 +44 15 04.8 U I52
2018-03-18 03:51:59 C 10 18 29.34 +44 15 07.8 U I52
2018-03-18 03:52:37 C 10 18 29.78 +44 15 10.2 U I52
2018-03-19 03:21:09 C 10 35 47.27 +45 47 36.7 U I52
2018-03-19 03:21:44 C 10 35 47.70 +45 47 38.9 U I52
2018-03-19 03:22:20 C 10 35 48.18 +45 47 40.6 U I52
2018-03-19 03:22:56 C 10 35 48.57 +45 47 43.4 U I52
2018-03-20 05:43:36 C 10 55 06.81 +47 13 12.9 U I52
2018-03-20 05:44:29 C 10 55 07.56 +47 13 14.7 U I52
2018-03-20 05:45:04 C 10 55 07.95 +47 13 16.4 U I52