2021 EN4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7568671668 ± 2.00e+00
Semi-major axis (a)3.2468770991 AU ± 3.00e+00
Inclination (i)5.66061655° ± 4.00e+00
Long. of Asc. Node (Ω)174.54977395° ± 5.00e+00
Arg. of Perihelion (ω)301.86858690° ± 6.00e+00
Mean Anomaly (M)294.30972464° ± 7.61e-01
Mean Motion (n)0.1676822500°/day ± 2.32e-01
Perihelion dist (q)0.78880380 AU ± 6.53e+00
Aphelion dist (Q)5.72509980 AU ± 8.36e+00
Orbital Period5.87782970 yr ± 8.15e+00
Physical Parameters
H (abs. magnitude)29.68
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual1.181″
Uncertainty3
Orbit TypeApollo
MOID0.000792 AU
Observations Used22
Oppositions1
Arc Total2021-2021
First Observation Used
Last Observation Used2021-03-16
Observations (23)
Date Type RA Dec Mag Band Observatory
2021-03-15 09:59:24 C 12 23 16.447 +03 23 20.13 V F51
2021-03-15 10:18:51 C 12 25 06.763 +03 31 07.92 V F51
2021-03-15 10:27:00 C 12 25 47.37 +03 35 13.1 V T08
2021-03-15 10:32:18 C 12 26 14.47 +03 37 07.1 V T08
2021-03-15 10:36:17 C 12 26 34.25 +03 38 30.3 V T08
2021-03-15 10:42:29 C 12 27 06.268 +03 39 33.41 V F51
2021-03-15 10:53:11 C 12 27 53.94 +03 44 04.5 V T08
2021-03-15 11:01:49 C 12 28 34.129 +03 45 44.42 V F51
2021-03-15 20:00:02 C 12 49 50.61 +04 48 00.5 V L01
2021-03-15 20:02:17 C 12 49 52.51 +04 48 10.3 V L01
2021-03-15 20:04:31 C 12 49 54.44 +04 48 19.5 V L01
2021-03-15 20:06:46 C 12 49 56.29 +04 48 28.9 V L01
2021-03-15 20:10:54 C 12 49 59.72 +04 48 47.0 V L01
2021-03-15 20:13:13 C 12 50 01.60 +04 48 56.2 V L01
2021-03-15 21:45:38 C 12 51 09.94 +04 55 04.1 V K63
2021-03-15 21:57:16 C 12 51 16.99 +04 55 44.0 V K63
2021-03-15 22:11:52 C 12 51 21.97 +04 56 05.1 V 595
2021-03-15 22:14:19 C 12 51 55.527 +05 00 40.49 V J04
2021-03-15 22:16:10 C 12 51 56.622 +05 00 45.93 V J04
2021-03-15 22:18:01 C 12 51 57.710 +05 00 52.06 V J04
2021-03-15 22:22:26 C 12 51 27.86 +04 56 38.7 V 595
2021-03-16 01:05:39 C 12 52 46.62 +05 03 57.7 V 204
2021-03-16 01:27:39 C 12 52 55.09 +05 04 46.0 V 204