2021 EU4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6264190732 ± 8.23e-05
Semi-major axis (a)2.0495952472 AU ± 4.10e-04
Inclination (i)13.71736538° ± 1.44e-03
Long. of Asc. Node (Ω)352.10201888° ± 3.75e-05
Arg. of Perihelion (ω)111.71971998° ± 5.27e-04
Mean Anomaly (M)230.69061585° ± 1.79e-01
Mean Motion (n)0.3359000884°/day ± 1.01e-04
Perihelion dist (q)0.76568969 AU ± 2.28e-04
Aphelion dist (Q)3.33350080 AU ± 6.88e-04
Orbital Period2.93428408 yr ± 8.80e-04
Physical Parameters
H (abs. magnitude)24.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.253″
Uncertainty3
Orbit TypeApollo
MOID0.007907 AU
Observations Used96
Oppositions1
Arc Total2021-2021
First Observation Used2021-03-15
Last Observation Used2021-04-14
Observations (102)
Date Type RA Dec Mag Band Observatory
2021-03-15 23:31:13 C 10 32 37.45 -08 16 35.9 V 203
2021-03-15 23:42:29 C 10 32 41.10 -08 18 19.8 V 203
2021-03-16 04:02:56 C 10 34 20.88 -08 56 19.8 q 858
2021-03-16 04:07:42 C 10 34 22.27 -08 57 00.5 q 858
2021-03-16 04:12:28 C 10 34 23.67 -08 57 41.3 q 858
2021-03-16 09:19:21 C 10 36 02.42 -09 35 09.0 V 474
2021-03-16 09:20:25 C 10 36 02.72 -09 35 17.3 V 474
2021-03-16 09:21:28 C 10 36 03.00 -09 35 25.5 V 474
2021-03-16 09:22:32 C 10 36 03.30 -09 35 33.8 V 474
2021-03-16 20:38:02 C 10 39 13.28 -10 59 15.0 V J95
2021-03-16 20:46:51 C 10 39 15.31 -11 00 12.1 V J95
2021-03-16 20:52:59 C 10 39 16.75 -11 00 51.6 V J95
2021-03-16 21:40:29 C 10 39 31.085 -11 05 07.97 V J04
2021-03-16 21:40:55 C 10 39 31.162 -11 05 10.37 V J04
2021-03-16 21:41:20 C 10 39 31.269 -11 05 13.11 V J04
2021-03-17 10:32:11 C 10 42 27.04 -12 15 36.8 V 474
2021-03-17 10:34:15 C 10 42 27.43 -12 15 47.5 V 474
2021-03-17 10:36:19 C 10 42 27.81 -12 15 58.2 V 474
2021-03-17 10:37:21 C 10 42 27.99 -12 16 03.5 V 474
2021-03-18 03:05:19 C 10 45 41.79 -13 34 52.0 V I52
2021-03-18 03:12:35 C 10 45 42.85 -13 35 22.8 V I52
2021-03-18 03:20:12 C 10 45 43.98 -13 35 54.6 V I52
2021-03-18 05:00:09 C 10 45 58.28 -13 42 44.5 o 691
2021-03-18 05:04:47 C 10 45 58.96 -13 43 03.2 o 691
2021-03-18 05:10:59 C 10 45 59.82 -13 43 27.9 o 691
2021-03-18 08:56:53 C 10 46 35.640 -13 57 48.86 U F51
2021-03-18 09:14:37 C 10 46 37.840 -13 58 56.31 U F51
2021-03-18 09:50:09 C 10 46 42.225 -14 01 10.37 U F51
2021-03-19 03:58:40 C 10 49 25.58 -15 02 22.9 o 691
2021-03-19 04:05:52 C 10 49 26.36 -15 02 44.8 o 691
2021-03-19 04:13:04 C 10 49 27.12 -15 03 07.4 o 691
2021-03-19 04:53:14 C 10 49 31.20 -15 05 10.7 V I52
2021-03-19 04:54:35 C 10 49 31.33 -15 05 14.3 V I52
2021-03-19 04:55:57 C 10 49 31.51 -15 05 19.0 V I52
2021-03-19 04:56:33 C 10 49 31.56 -15 05 20.1 V I52
2021-03-20 04:02:40 C 10 52 15.04 -16 05 45.6 V I52
2021-03-20 04:03:47 C 10 52 15.10 -16 05 48.0 V I52
2021-03-20 04:04:53 C 10 52 15.19 -16 05 50.6 V I52
2021-03-21 10:08:32 C 10 55 01.62 -17 03 37.8 V 474
2021-03-21 10:13:36 C 10 55 01.95 -17 03 46.6 V 474
2021-03-21 10:18:40 C 10 55 02.28 -17 03 55.6 V 474
2021-03-21 10:23:44 C 10 55 02.59 -17 04 04.4 V 474
2021-03-23 04:22:43 C 10 58 01.33 -18 03 59.9 u 807
2021-03-23 04:28:38 C 10 58 01.59 -18 04 06.9 u 807
2021-03-23 04:34:32 C 10 58 01.86 -18 04 13.4 u 807
2021-03-25 04:05:51 C 11 00 40.62 -18 50 24.7 V 807
2021-03-25 04:12:47 C 11 00 40.85 -18 50 30.1 V 807
2021-03-25 04:19:32 C 11 00 41.07 -18 50 35.5 V 807
2021-04-01 04:18:22 C 11 07 07.27 -20 07 28.2 V 291
2021-04-01 04:45:23 C 11 07 07.83 -20 07 35.9 V 291