2021 EY4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.0700472822 ± 1.16e-07
Semi-major axis (a)1.2444395594 AU ± 1.01e-07
Inclination (i)19.44074260° ± 1.77e-05
Long. of Asc. Node (Ω)192.01357581° ± 9.04e-06
Arg. of Perihelion (ω)334.02675268° ± 3.98e-04
Mean Anomaly (M)142.41589751° ± 4.98e-04
Mean Motion (n)0.7099889074°/day ± 8.68e-08
Perihelion dist (q)1.15726995 AU ± 1.72e-07
Aphelion dist (Q)1.33160917 AU ± 1.80e-07
Orbital Period1.38822772 yr ± 1.70e-07
Physical Parameters
H (abs. magnitude)22.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.259″
Uncertainty0
Orbit TypeAmor
MOID0.165156 AU
Observations Used65
Oppositions1
Arc Total2021-2024
First Observation Used2021-03-15
Last Observation Used2024-09-10
Observations (65)
Date Type RA Dec Mag Band Observatory
2021-03-15 07:49:29 C 10 50 23.329 -32 48 07.50 U F51
2021-03-15 08:03:28 C 10 50 23.611 -32 47 21.79 U F51
2021-03-15 08:17:26 C 10 50 23.881 -32 46 36.57 U F51
2021-03-15 08:31:23 C 10 50 24.159 -32 45 50.68 U F51
2021-03-15 22:20:47 C 10 50 52.71 -31 59 30.3 V J04
2021-03-15 22:23:14 C 10 50 52.80 -31 59 22.4 V J04
2021-03-15 22:25:42 C 10 50 52.83 -31 59 13.2 V J04
2021-03-16 09:51:22 C 10 51 16.27 -31 19 12.9 V 474
2021-03-16 09:54:45 C 10 51 16.41 -31 19 01.8 V 474
2021-03-16 09:58:09 C 10 51 16.47 -31 18 49.5 V 474
2021-03-16 10:01:33 C 10 51 16.51 -31 18 37.6 V 474
2021-03-16 23:17:31 C 10 51 44.320 -30 32 56.31 V J04
2021-03-16 23:19:47 C 10 51 44.377 -30 32 48.46 V J04
2021-03-16 23:22:02 C 10 51 44.454 -30 32 40.51 V J04
2021-03-17 10:48:18 C 10 52 09.12 -29 50 52.7 V 474
2021-03-17 10:51:38 C 10 52 09.21 -29 50 40.6 V 474
2021-03-17 10:54:12 C 10 52 09.26 -29 50 31.4 V 474
2021-03-19 11:04:50 C 10 53 59.18 -26 49 29.6 V 474
2021-03-19 11:07:24 C 10 53 59.26 -26 49 19.0 V 474
2021-03-19 11:09:57 C 10 53 59.32 -26 49 08.8 V 474
2021-03-21 09:42:46 C 10 55 55.47 -23 41 59.8 V 474
2021-03-21 09:45:50 C 10 55 55.58 -23 41 47.3 V 474
2021-03-21 09:47:22 C 10 55 55.64 -23 41 40.8 V 474
2021-03-21 09:50:27 C 10 55 55.73 -23 41 28.4 V 474
2021-03-23 02:43:04 C 10 57 44.05 -20 48 29.5 u 807
2021-03-23 02:45:52 C 10 57 44.13 -20 48 17.5 u 807
2021-03-25 02:18:49 C 10 59 59.64 -17 18 10.9 u 807
2021-03-25 02:23:02 C 10 59 59.80 -17 17 52.5 u 807
2021-03-25 02:27:13 C 10 59 59.91 -17 17 34.4 u 807
2021-03-31 05:20:11 C 11 07 54.63 -05 58 09.2 V I52
2021-03-31 05:21:59 C 11 07 54.76 -05 58 01.2 V I52
2021-03-31 05:26:04 C 11 07 54.92 -05 57 43.6 V I52
2021-03-31 05:28:00 C 11 07 54.99 -05 57 33.0 V I52
2021-04-01 03:01:39 C 11 09 12.47 -04 17 28.0 q 734
2021-04-01 03:07:55 C 11 09 12.82 -04 16 59.6 q 734
2021-04-01 03:14:14 C 11 09 13.13 -04 16 31.4 q 734
2021-04-01 03:20:31 C 11 09 13.44 -04 16 02.2 q 734
2021-04-03 04:28:45 C 11 12 14.01 -00 31 10.2 V G96
2021-04-03 04:36:49 C 11 12 14.44 -00 30 33.6 V G96
2021-04-03 04:52:57 C 11 12 15.21 -00 29 24.0 V G96
2021-04-07 08:31:31 C 11 18 45.776 +06 41 30.44 U F51
2021-04-07 08:49:01 C 11 18 46.736 +06 42 42.66 U F51
2021-04-07 09:06:27 C 11 18 47.696 +06 43 53.83 U F51
2021-04-08 06:00:59 C 11 20 13.81 +08 08 20.0 V G96
2021-04-08 06:08:22 C 11 20 14.24 +08 08 49.5 V G96
2021-04-08 06:15:47 C 11 20 14.68 +08 09 19.0 V G96
2021-04-08 06:23:12 C 11 20 15.10 +08 09 48.7 V G96
2021-04-11 06:18:37 C 11 25 23.301 +12 42 32.07 U F51
2021-04-11 06:36:00 C 11 25 24.382 +12 43 34.39 U F51
2021-04-11 07:10:42 C 11 25 26.502 +12 45 39.12 U F51