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
2021-03-13 16:54:10 C 12 02 00.89 -03 12 52.5 q D29
2021-03-13 17:14:33 C 12 02 02.99 -03 12 07.0 q D29
2021-03-13 17:34:54 C 12 02 05.12 -03 11 22.2 q D29
2021-03-14 02:49:51 C 12 03 08.02 -02 50 40.7 V 033
2021-03-14 02:54:02 C 12 03 08.46 -02 50 31.6 V 033
2021-03-14 02:58:12 C 12 03 08.98 -02 50 21.7 V 033
2021-03-14 04:19:54 C 12 03 20.13 -02 46 28.4 V 807
2021-03-14 04:22:02 C 12 03 20.35 -02 46 23.6 V 807
2021-03-14 04:25:14 C 12 03 20.69 -02 46 16.3 V 807
2021-03-14 23:03:29 C 12 05 33.53 -02 03 20.9 V J04
2021-03-14 23:06:11 C 12 05 33.80 -02 03 14.7 V J04
2021-03-14 23:08:53 C 12 05 34.14 -02 03 07.5 V J04
2021-03-15 00:24:52 C 12 05 41.62 -02 00 15.8 V 204
2021-03-15 00:48:26 C 12 05 44.28 -01 59 18.1 V 204
2021-03-15 07:16:43 C 12 06 31.93 -01 43 34.0 o 711
2021-03-15 07:21:45 C 12 06 32.51 -01 43 21.4 o 711
2021-03-15 07:26:09 C 12 06 33.25 -01 43 11.6 o 691
2021-03-15 07:26:42 C 12 06 33.06 -01 43 09.4 o 711
2021-03-15 07:33:52 C 12 06 34.09 -01 42 53.0 o 691
2021-03-17 04:20:09 C 12 12 16.64 +00 12 24.8 u 807
2021-03-17 04:22:53 C 12 12 16.98 +00 12 32.2 u 807
2021-03-17 04:25:59 C 12 12 17.35 +00 12 40.4 u 807
2021-03-18 03:23:55 C 12 15 22.90 +01 15 04.0 V 033
2021-03-18 03:25:40 C 12 15 23.12 +01 15 08.9 V 033
2021-03-18 03:27:30 C 12 15 23.37 +01 15 14.0 V 033
2021-03-18 06:53:17 C 12 15 54.15 +01 25 07.3 V I52
2021-03-18 06:59:15 C 12 15 54.93 +01 25 24.7 V I52
2021-03-18 07:05:12 C 12 15 55.71 +01 25 40.9 V I52
2021-03-18 07:05:49 C 12 15 55.79 +01 25 43.0 V I52
2021-03-19 03:51:12 C 12 18 55.51 +02 25 59.4 V I52
2021-03-19 03:51:48 C 12 18 55.56 +02 26 01.1 V I52
2021-03-19 03:54:31 C 12 18 55.99 +02 26 09.1 V I52
2021-03-19 03:57:14 C 12 18 56.32 +02 26 17.8 V I52
2021-03-19 08:17:00 C 12 19 32.13 +02 39 12.6 V 703
2021-03-19 08:24:31 C 12 19 33.16 +02 39 35.6 V 703
2021-03-19 08:32:01 C 12 19 34.16 +02 39 58.4 V 703
2021-03-19 08:39:34 C 12 19 35.22 +02 40 20.2 V 703
2021-03-21 16:19:42 C 12 28 15.94 +05 36 12.1 q D29
2021-03-21 17:00:25 C 12 28 22.25 +05 38 26.6 q D29
2021-03-21 21:08:48 C 12 29 04.79 +05 52 04.2 V 033
2021-03-21 21:10:23 C 12 29 05.05 +05 52 09.5 V 033
2021-03-21 21:11:58 C 12 29 05.29 +05 52 14.9 V 033
2021-03-21 21:13:39 C 12 29 05.55 +05 52 20.3 V 033
2021-03-25 05:23:43 C 12 43 28.89 +10 40 02.1 u 807
2021-03-25 05:29:36 C 12 43 29.98 +10 40 24.8 u 807
2021-03-25 05:35:22 C 12 43 31.02 +10 40 46.7 u 807
2021-03-31 07:31:20 C 13 16 04.90 +20 34 57.1 V I52
2021-03-31 07:41:28 C 13 16 07.32 +20 35 40.2 V I52
2021-03-31 07:44:23 C 13 16 08.02 +20 35 52.9 V I52
2021-04-01 03:21:38 C 13 21 13.72 +21 59 35.8 V H06