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
2021-04-30 07:20:05 C 12 19 23.44 +07 54 53.3 o 691
2021-04-30 07:35:50 C 12 19 24.62 +07 56 42.3 o 691
2021-04-30 07:50:45 C 12 19 25.68 +07 58 25.3 o 691
2021-05-01 06:14:37 C 12 21 29.83 +10 35 13.3 o 691
2021-05-01 06:29:15 C 12 21 31.01 +10 36 55.8 o 691
2021-05-01 06:43:53 C 12 21 32.11 +10 38 39.1 o 691
2021-05-01 13:35:30 C 12 22 13.21 +11 27 05.4 q D29
2021-05-01 13:53:18 C 12 22 14.59 +11 29 13.3 q D29
2021-05-03 06:55:49 C 12 26 23.09 +16 21 53.9 o 691
2021-05-03 07:09:05 C 12 26 24.30 +16 23 28.4 o 691
2021-05-03 07:22:21 C 12 26 25.51 +16 25 03.1 o 691
2021-05-06 09:41:09 C 12 35 10.43 +25 13 37.1 V I52
2021-05-06 09:42:34 C 12 35 10.58 +25 13 47.5 V I52
2021-05-06 09:45:24 C 12 35 10.94 +25 14 06.7 V I52
2021-05-07 04:27:10 C 12 37 44.36 +27 24 24.4 V I52
2021-05-07 04:31:25 C 12 37 44.84 +27 24 53.7 V I52
2021-05-15 05:25:27 C 13 10 11.79 +46 53 02.4 V G96
2021-05-15 05:33:00 C 13 10 13.17 +46 53 40.8 V G96
2021-05-15 05:40:28 C 13 10 14.56 +46 54 18.8 V G96
2021-05-30 09:52:51 C 14 50 18.23 +66 41 29.5 o 291
2021-05-30 10:04:41 C 14 50 22.01 +66 41 49.3 o 291
2021-05-30 10:16:31 C 14 50 25.88 +66 42 08.9 o 291
2021-09-07 07:09:20 C 21 15 24.81 +39 25 53.3 o 695
2021-09-07 07:28:06 C 21 15 25.68 +39 25 12.4 o 695
2021-09-07 07:46:52 C 21 15 26.58 +39 24 31.3 o 695