2021 HA

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2312147747 ± 1.69e-04
Semi-major axis (a)1.1950452393 AU ± 1.82e-04
Inclination (i)3.17465272° ± 1.85e-03
Long. of Asc. Node (Ω)224.29992749° ± 2.27e-04
Arg. of Perihelion (ω)49.49340890° ± 2.74e-03
Mean Anomaly (M)141.21069377° ± 2.76e-01
Mean Motion (n)0.7544591969°/day ± 1.72e-04
Perihelion dist (q)0.91873312 AU ± 2.46e-04
Aphelion dist (Q)1.47135736 AU ± 3.02e-04
Orbital Period1.30640105 yr ± 2.99e-04
Physical Parameters
H (abs. magnitude)25.58
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.279″
Uncertainty3
Orbit TypeApollo
MOID0.007639 AU
Observations Used21
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-06
Last Observation Used2021-04-22
Observations (21)
Date Type RA Dec Mag Band Observatory
2021-04-06 10:55:52 C 11 46 47.083 -19 56 39.23 V F52
2021-04-09 06:31:06 C 11 37 54.78 -19 40 31.6 V G96
2021-04-09 06:38:55 C 11 37 53.39 -19 40 29.0 V G96
2021-04-16 07:35:59 C 11 04 50.582 -17 56 48.26 U F51
2021-04-16 08:08:16 C 11 04 40.398 -17 56 15.16 U F51
2021-04-16 08:24:27 C 11 04 35.323 -17 55 58.29 U F51
2021-04-16 12:41:44 C 11 03 22.21 -17 48 20.3 V 474
2021-04-16 12:43:53 C 11 03 21.57 -17 48 18.1 V 474
2021-04-16 12:46:01 C 11 03 20.93 -17 48 15.4 V 474
2021-04-16 12:48:10 C 11 03 20.29 -17 48 12.9 V 474
2021-04-16 19:36:32 C 11 01 35.40 -17 44 49.2 L01
2021-04-16 19:47:40 C 11 01 31.87 -17 44 37.7 L01
2021-04-16 19:53:46 C 11 01 30.02 -17 44 31.5 L01
2021-04-16 20:00:56 C 11 01 27.70 -17 44 23.0 L01
2021-04-20 03:58:51 C 10 34 13.48 -15 45 28.1 V I52
2021-04-20 04:01:16 C 10 34 12.38 -15 45 23.4 V I52
2021-04-20 04:04:16 C 10 34 10.90 -15 45 17.4 V I52
2021-04-20 04:05:41 C 10 34 10.27 -15 45 14.4 V I52
2021-04-22 03:53:03 C 10 11 26.80 -13 52 01.2 V I52
2021-04-22 03:54:52 C 10 11 25.72 -13 51 56.4 V I52
2021-04-22 03:58:29 C 10 11 23.48 -13 51 45.8 V I52