2021 EO4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7255284764 ± 2.08e-06
Semi-major axis (a)2.2212135129 AU ± 1.29e-05
Inclination (i)13.72943924° ± 2.69e-05
Long. of Asc. Node (Ω)113.68717530° ± 4.47e-05
Arg. of Perihelion (ω)189.93518897° ± 5.72e-05
Mean Anomaly (M)102.46233744° ± 4.03e-03
Mean Motion (n)0.2977328920°/day ± 2.59e-06
Perihelion dist (q)0.60965986 AU ± 5.82e-06
Aphelion dist (Q)3.83276717 AU ± 2.27e-05
Orbital Period3.31043801 yr ± 2.88e-05
Physical Parameters
H (abs. magnitude)18.74
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.315″
Uncertainty1
Orbit TypeApollo
MOID0.229261 AU
Observations Used125
Oppositions1
Arc Total2021-2021
First Observation Used2021-03-11
Last Observation Used2021-12-02
Observations (129)
Date Type RA Dec Mag Band Observatory
2021-06-11 04:55:46 C 10 27 17.02 +24 57 38.7 V I52
2021-10-15 07:47:02 C 06 50 12.98 -19 16 05.1 u 807
2021-10-15 07:50:55 C 06 50 12.17 -19 16 04.2 u 807
2021-10-15 07:54:54 C 06 50 11.36 -19 16 02.7 u 807
2021-10-22 13:53:55 C 06 16 20.531 -18 03 35.13 U F51
2021-10-22 14:04:37 C 06 16 18.437 -18 03 29.77 U F51
2021-10-22 14:15:26 C 06 16 16.311 -18 03 24.58 U F51
2021-10-22 14:26:05 C 06 16 14.208 -18 03 19.38 U F51
2021-10-26 06:14:21 C 05 59 45.22 -17 16 30.2 u 807
2021-10-26 06:18:17 C 05 59 44.45 -17 16 28.2 u 807
2021-10-26 06:22:05 C 05 59 43.73 -17 16 25.7 u 807
2021-10-26 13:44:01 C 05 58 21.260 -17 12 31.83 U F52
2021-10-26 13:59:35 C 05 58 18.295 -17 12 22.95 U F52
2021-10-26 14:15:14 C 05 58 15.304 -17 12 14.01 U F52
2021-10-27 01:17:17 C 05 56 13.43 -17 05 54.7 Z C95
2021-10-27 01:39:00 C 05 56 09.34 -17 05 44.3 Z C95
2021-10-28 12:29:15 C 05 49 45.71 -16 44 43.0 V T08
2021-10-28 12:33:14 C 05 49 44.92 -16 44 41.4 V T08
2021-10-28 12:37:13 C 05 49 44.21 -16 44 38.9 V T08
2021-10-28 12:41:51 C 05 49 43.24 -16 44 36.0 V T08
2021-10-28 12:45:50 C 05 49 42.50 -16 44 34.0 V T08
2021-10-28 12:46:30 C 05 49 42.47 -16 44 33.3 V T08
2021-10-28 12:55:44 C 05 49 40.74 -16 44 28.3 V T08
2021-10-29 08:18:20 C 05 46 09.53 -16 32 25.7 V 703
2021-10-29 08:25:45 C 05 46 08.19 -16 32 21.3 V 703
2021-10-29 08:40:35 C 05 46 05.40 -16 32 11.9 V 703
2021-10-30 13:42:02 C 05 40 50.68 -16 13 27.3 V T05
2021-10-30 13:46:39 C 05 40 49.79 -16 13 24.2 V T05
2021-10-30 13:55:15 C 05 40 48.27 -16 13 17.9 V T05
2021-10-30 14:45:20 C 05 40 38.95 -16 12 45.3 V T05
2021-10-31 12:52:40 C 05 36 42.54 -15 58 00.7 V T05
2021-10-31 12:55:18 C 05 36 42.05 -15 57 59.0 V T05
2021-10-31 12:59:17 C 05 36 41.29 -15 57 56.1 V T05
2021-10-31 13:13:59 C 05 36 38.64 -15 57 46.1 V T05
2021-11-01 12:26:46 C 05 32 31.54 -15 41 53.9 o 691
2021-11-01 12:34:21 C 05 32 30.19 -15 41 48.4 o 691
2021-11-01 12:41:57 C 05 32 28.81 -15 41 42.9 o 691
2021-11-04 09:55:30 C 05 20 30.47 -14 51 44.3 V 703
2021-11-04 10:03:02 C 05 20 29.10 -14 51 38.7 V 703
2021-11-04 10:10:34 C 05 20 27.80 -14 51 33.3 V 703
2021-11-04 10:18:06 C 05 20 26.47 -14 51 27.6 V 703
2021-11-04 12:50:38 C 05 20 00.71 -14 49 30.3 V T05
2021-11-04 12:58:02 C 05 19 59.39 -14 49 24.7 V T05
2021-11-04 13:36:16 C 05 19 52.70 -14 48 55.5 V T05
2021-11-04 14:12:23 C 05 19 46.40 -14 48 28.7 V T05
2021-11-06 11:30:02 C 05 12 12.08 -14 13 43.5 V T08
2021-11-06 11:38:02 C 05 12 10.70 -14 13 36.0 V T08
2021-11-06 11:40:41 C 05 12 10.29 -14 13 35.0 V T08
2021-11-06 11:56:39 C 05 12 07.56 -14 13 21.0 V T08
2021-11-07 12:35:46 C 05 08 05.046 -13 53 51.96 U F51