2021 EK4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5668463082 ± 2.11e-05
Semi-major axis (a)2.4722046455 AU ± 1.09e-04
Inclination (i)14.94005939° ± 3.05e-04
Long. of Asc. Node (Ω)176.34228812° ± 2.58e-04
Arg. of Perihelion (ω)44.85742428° ± 3.31e-04
Mean Anomaly (M)60.76971076° ± 2.89e-02
Mean Motion (n)0.2535628642°/day ± 1.67e-05
Perihelion dist (q)1.07084457 AU ± 7.03e-05
Aphelion dist (Q)3.87356472 AU ± 1.78e-04
Orbital Period3.88710818 yr ± 2.56e-04
Physical Parameters
H (abs. magnitude)22.43
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.338″
Uncertainty2
Orbit TypeAmor
MOID0.141724 AU
Observations Used107
Oppositions1
Arc Total2021-2021
First Observation Used2021-03-13
Last Observation Used2021-06-18
Observations (107)
Date Type RA Dec Mag Band Observatory
2021-05-21 07:26:45 C 18 22 28.26 +46 01 02.9 u H21
2021-06-15 06:14:35 C 18 46 58.60 +36 52 22.2 u H21
2021-06-15 06:30:30 C 18 46 58.66 +36 52 03.2 u H21
2021-06-15 06:40:43 C 18 46 58.78 +36 51 51.3 u H21
2021-06-18 06:23:46 C 18 47 33.64 +35 26 12.0 u H21
2021-06-18 06:36:19 C 18 47 33.67 +35 25 56.4 u H21
2021-06-18 06:47:37 C 18 47 33.67 +35 25 42.7 u H21