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
2018-03-20 05:45:40 C 10 55 08.35 +47 13 17.5 U I52
2018-03-27 11:25:03 C 12 44 38.78 +50 09 21.5 U I52
2018-03-27 11:28:23 C 12 44 40.28 +50 09 20.4 U I52
2018-03-27 11:31:43 C 12 44 41.96 +50 09 18.1 U I52
2018-03-27 11:33:31 C 12 44 42.84 +50 09 17.7 U I52
2018-04-05 07:33:32 C 13 58 50.69 +47 08 35.2 U G96
2018-04-05 07:41:09 C 13 58 52.33 +47 08 26.3 U G96
2018-04-05 07:48:46 C 13 58 53.96 +47 08 18.6 U G96
2018-04-05 07:56:27 C 13 58 55.58 +47 08 10.2 U G96
2018-04-18 05:59:08 C 14 41 56.92 +41 14 32.3 u H21
2018-04-18 06:25:59 C 14 41 58.72 +41 14 02.4 u H21
2018-04-18 06:45:40 C 14 41 59.99 +41 13 40.8 u H21
2018-04-20 07:06:14 C 14 45 25.81 +40 19 26.1 V H21
2018-04-20 07:36:35 C 14 45 27.47 +40 18 52.2 V H21
2018-04-20 08:06:57 C 14 45 29.18 +40 18 17.5 V H21
2018-05-09 05:25:36 C 15 01 26.79 +31 56 47.6 u H21
2018-05-09 05:51:53 C 15 01 27.11 +31 56 18.1 u H21
2018-05-09 06:21:22 C 15 01 27.48 +31 55 45.3 u H21