2021 HE

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3270972221 ± 2.70e-06
Semi-major axis (a)1.5161251368 AU ± 6.19e-06
Inclination (i)17.83959488° ± 1.02e-04
Long. of Asc. Node (Ω)212.87973609° ± 1.95e-05
Arg. of Perihelion (ω)49.12077559° ± 2.91e-05
Mean Anomaly (M)136.21109433° ± 5.24e-03
Mean Motion (n)0.5279705565°/day ± 3.23e-06
Perihelion dist (q)1.02020482 AU ± 5.85e-06
Aphelion dist (Q)2.01204546 AU ± 9.18e-06
Orbital Period1.86682055 yr ± 1.14e-05
Physical Parameters
H (abs. magnitude)23.21
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.263″
Uncertainty1
Orbit TypeAmor
MOID0.089959 AU
Observations Used73
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-16
Last Observation Used2021-09-07
Observations (75)
Date Type RA Dec Mag Band Observatory
2021-04-16 08:00:28 C 12 01 55.056 -22 11 05.27 U F51
2021-04-16 08:16:37 C 12 01 55.165 -22 10 06.62 U F51
2021-04-16 08:32:47 C 12 01 55.274 -22 09 07.41 U F51
2021-04-16 13:46:12 C 12 02 00.30 -21 48 53.7 V 474
2021-04-16 13:48:45 C 12 02 00.34 -21 48 43.8 V 474
2021-04-16 13:51:19 C 12 02 00.37 -21 48 34.4 V 474
2021-04-16 13:53:53 C 12 02 00.42 -21 48 24.3 V 474
2021-04-16 13:56:26 C 12 02 00.45 -21 48 15.0 V 474
2021-04-17 03:10:01 C 12 02 23.48 -20 59 21.7 o 691
2021-04-17 03:23:04 C 12 02 23.67 -20 58 31.4 o 691
2021-04-17 03:31:59 C 12 02 23.82 -20 57 57.5 o 691
2021-04-17 06:31:34 C 12 02 25.80 -20 46 27.6 V I52
2021-04-17 06:33:17 C 12 02 25.83 -20 46 20.4 V I52
2021-04-17 06:35:00 C 12 02 25.84 -20 46 14.1 V I52
2021-04-17 07:04:14 C 12 02 28.864 -20 44 11.99 U F52
2021-04-17 07:33:57 C 12 02 29.194 -20 42 17.40 U F52
2021-04-17 07:48:39 C 12 02 29.340 -20 41 20.37 U F52
2021-04-17 08:20:37 C 12 02 31.03 -20 38 16.5 V 474
2021-04-17 08:23:10 C 12 02 31.07 -20 38 06.6 V 474
2021-04-17 08:25:44 C 12 02 31.13 -20 37 56.9 V 474
2021-04-17 08:28:18 C 12 02 31.17 -20 37 46.7 V 474
2021-04-17 09:42:20 C 12 02 30.497 -20 33 57.61 U F51
2021-04-17 09:59:03 C 12 02 30.676 -20 32 51.88 U F51
2021-04-17 10:15:47 C 12 02 30.861 -20 31 45.92 U F51
2021-04-17 10:32:29 C 12 02 31.060 -20 30 40.05 U F51
2021-04-18 03:09:14 C 12 03 02.05 -19 24 22.5 o 691
2021-04-18 03:33:30 C 12 03 02.42 -19 22 44.0 o 691
2021-04-18 03:57:48 C 12 03 02.84 -19 21 05.7 o 691
2021-04-18 07:57:44 C 12 03 06.42 -19 04 39.2 V I52
2021-04-18 07:58:50 C 12 03 06.47 -19 04 35.2 V I52
2021-04-18 10:08:56 C 12 03 10.837 -18 55 29.19 U F51
2021-04-18 10:52:52 C 12 03 11.516 -18 52 25.59 U F51
2021-04-19 10:17:05 C 12 03 58.54 -17 11 15.5 V 474
2021-04-19 10:19:39 C 12 03 58.59 -17 11 04.1 V 474
2021-04-19 10:22:13 C 12 03 58.64 -17 10 52.8 V 474
2021-04-19 10:24:46 C 12 03 58.71 -17 10 41.3 V 474
2021-04-21 05:02:15 C 12 05 34.40 -13 54 21.7 V I52
2021-04-21 05:05:40 C 12 05 34.49 -13 54 05.3 V I52
2021-04-21 05:09:05 C 12 05 34.54 -13 53 48.4 V I52
2021-04-27 21:19:30 C 12 14 42.66 +01 23 10.4 V 033
2021-04-27 21:20:25 C 12 14 42.72 +01 23 16.3 V 033
2021-04-28 20:29:24 C 12 16 30.38 +03 56 32.3 V 033
2021-04-28 20:31:18 C 12 16 30.51 +03 56 45.0 V 033
2021-04-28 20:33:13 C 12 16 30.62 +03 56 57.8 V 033
2021-04-29 07:31:16 C 12 17 21.32 +05 11 18.9 V 695
2021-04-29 07:37:35 C 12 17 21.76 +05 12 01.6 V 695
2021-04-29 07:41:52 C 12 17 22.05 +05 12 31.1 V 695
2021-04-30 04:44:18 C 12 19 12.33 +07 36 53.1 V I52
2021-04-30 04:45:09 C 12 19 12.40 +07 36 59.1 V I52
2021-04-30 04:46:00 C 12 19 12.46 +07 37 05.1 V I52