2021 EY4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.0700472822 ± 1.16e-07
Semi-major axis (a)1.2444395594 AU ± 1.01e-07
Inclination (i)19.44074260° ± 1.77e-05
Long. of Asc. Node (Ω)192.01357581° ± 9.04e-06
Arg. of Perihelion (ω)334.02675268° ± 3.98e-04
Mean Anomaly (M)142.41589751° ± 4.98e-04
Mean Motion (n)0.7099889074°/day ± 8.68e-08
Perihelion dist (q)1.15726995 AU ± 1.72e-07
Aphelion dist (Q)1.33160917 AU ± 1.80e-07
Orbital Period1.38822772 yr ± 1.70e-07
Physical Parameters
H (abs. magnitude)22.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.259″
Uncertainty0
Orbit TypeAmor
MOID0.165156 AU
Observations Used65
Oppositions1
Arc Total2021-2024
First Observation Used2021-03-15
Last Observation Used2024-09-10
Observations (65)
Date Type RA Dec Mag Band Observatory
2021-04-20 05:27:19 C 11 41 56.16 +23 16 46.9 V I52
2021-04-20 05:37:00 C 11 41 56.81 +23 17 09.0 V I52
2021-04-20 05:54:22 C 11 41 58.05 +23 17 49.3 V I52
2021-05-01 06:59:43 C 12 04 08.37 +30 52 24.3 o 691
2021-05-01 07:23:51 C 12 04 10.21 +30 52 52.3 o 691
2021-05-01 07:47:59 C 12 04 12.15 +30 53 19.1 o 691
2024-09-01 12:32:10 C 01 05 16.314 +29 32 27.79 V T12
2024-09-02 15:02:07 C 01 05 32.892 +29 08 32.75 V T12
2024-09-08 13:25:20 C 01 06 01.764 +26 32 53.89 V F51
2024-09-08 13:41:41 C 01 06 01.605 +26 32 33.24 V F51
2024-09-08 13:57:55 C 01 06 01.471 +26 32 12.28 V F51
2024-09-08 14:14:04 C 01 06 01.309 +26 31 51.44 V F51
2024-09-10 11:11:02 C 01 05 47.170 +25 32 19.50 V V06
2024-09-10 11:16:46 C 01 05 47.094 +25 32 11.51 V V06
2024-09-10 11:22:29 C 01 05 47.015 +25 32 03.37 V V06