2021 EH4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1464241097 ± 9.61e-07
Semi-major axis (a)1.1506889136 AU ± 1.09e-06
Inclination (i)12.28532578° ± 6.00e-05
Long. of Asc. Node (Ω)14.50334781° ± 6.96e-06
Arg. of Perihelion (ω)233.81395660° ± 2.90e-05
Mean Anomaly (M)230.33134383° ± 1.86e-03
Mean Motion (n)0.7985008501°/day ± 1.14e-06
Perihelion dist (q)0.98220031 AU ± 1.45e-06
Aphelion dist (Q)1.31917751 AU ± 1.67e-06
Orbital Period1.23434594 yr ± 1.76e-06
Physical Parameters
H (abs. magnitude)24.94
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.383″
Uncertainty1
Orbit TypeApollo
MOID0.031155 AU
Observations Used50
Oppositions1
Arc Total2021-2021
First Observation Used2021-03-10
Last Observation Used2021-09-16
Observations (52)
Date Type RA Dec Mag Band Observatory
2021-03-10 09:37:21 C 14 18 27.13 +29 35 06.3 V G96
2021-03-10 09:44:48 C 14 18 27.28 +29 34 59.8 V G96
2021-03-10 09:52:15 C 14 18 27.42 +29 34 53.7 V G96
2021-03-10 09:59:42 C 14 18 27.41 +29 34 46.3 V G96
2021-03-10 10:33:41 C 14 18 27.77 +29 34 17.6 V G96
2021-03-10 10:37:53 C 14 18 27.81 +29 34 13.7 V G96
2021-03-10 10:46:02 C 14 18 27.90 +29 34 06.5 V G96
2021-03-11 09:07:41 C 14 19 06.57 +29 13 31.6 V G96
2021-03-11 09:12:41 C 14 19 06.63 +29 13 26.7 V G96
2021-03-11 09:19:46 C 14 19 06.72 +29 13 21.6 V G96
2021-03-11 09:24:45 C 14 19 06.70 +29 13 16.1 V G96
2021-03-14 08:20:23 C 14 20 41.03 +27 55 39.5 V 807
2021-03-14 08:28:22 C 14 20 41.01 +27 55 29.0 V 807
2021-03-14 08:36:22 C 14 20 41.02 +27 55 18.6 V 807
2021-03-18 00:51:18 C 14 21 55.61 +25 37 53.1 V 204
2021-03-18 02:00:40 C 14 21 54.89 +25 35 45.6 V 204
2021-03-23 12:14:20 C 14 21 39.77 +20 08 45.9 V I52
2021-03-23 12:17:58 C 14 21 39.61 +20 08 33.5 V I52
2021-03-23 12:21:36 C 14 21 39.50 +20 08 20.8 V I52
2021-03-31 10:53:40 C 14 14 55.83 +01 53 10.7 V 291
2021-03-31 10:59:59 C 14 14 55.16 +01 52 11.3 V 291
2021-03-31 11:06:25 C 14 14 54.45 +01 51 11.3 V 291
2021-04-01 04:58:10 C 14 13 48.74 -01 04 32.3 q 734
2021-04-01 05:01:34 C 14 13 48.40 -01 05 06.6 q 734
2021-04-01 05:08:22 C 14 13 47.58 -01 06 19.0 q 734
2021-04-01 05:11:48 C 14 13 47.24 -01 06 52.1 q 734
2021-04-01 08:42:21 C 14 13 24.79 -01 43 13.2 o 691
2021-04-01 08:56:20 C 14 13 22.97 -01 45 40.9 o 691
2021-04-01 09:10:20 C 14 13 21.17 -01 48 08.6 o 691
2021-04-03 11:57:21 C 14 08 15.00 -12 07 08.1 o 691
2021-04-03 12:08:09 C 14 08 13.33 -12 09 36.8 o 691
2021-04-04 09:07:20 C 14 05 40.54 -17 16 35.1 V G96
2021-04-04 09:14:40 C 14 05 39.08 -17 18 27.8 V G96
2021-04-04 09:17:36 C 14 05 38.52 -17 19 09.5 V 703
2021-04-04 09:22:00 C 14 05 37.61 -17 20 20.5 V G96
2021-04-04 09:29:21 C 14 05 36.14 -17 22 13.0 V G96
2021-04-04 09:32:39 C 14 05 35.53 -17 23 01.6 V 703
2021-04-04 09:40:10 C 14 05 33.93 -17 24 57.2 V 703
2021-04-04 10:16:55 C 14 05 26.73 -17 34 19.6 V I52
2021-04-04 10:17:22 C 14 05 26.62 -17 34 26.4 V I52
2021-04-04 10:17:48 C 14 05 26.57 -17 34 33.0 V I52
2021-04-04 10:18:14 C 14 05 26.46 -17 34 39.9 V I52
2021-04-14 23:44:14 C 10 21 02.92 -81 07 46.1 u 807
2021-04-14 23:48:48 C 10 20 44.43 -81 08 10.8 u 807
2021-04-14 23:53:21 C 10 20 26.21 -81 08 35.2 u 807
2021-04-14 23:58:08 C 10 20 06.93 -81 09 01.8 u 807
2021-04-15 08:46:53 C 09 45 01.82 -81 46 39.6 V 474
2021-04-15 08:48:40 C 09 44 53.77 -81 46 45.5 V 474
2021-04-15 08:52:14 C 09 44 38.32 -81 46 58.5 V 474
2021-04-15 08:54:01 C 09 44 30.38 -81 47 05.3 V 474