IAA RAS IAA Minor Planet Database

2021 HA1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4868227000
Semi-major axis (a)1.9066925000 AU
Inclination (i)4.64201000°
Long. of Asc. Node (Ω)43.91167000°
Arg. of Perihelion (ω)123.19778000°
Mean Anomaly (M)279.70897000°
Mean Motion (n)0.3743545300°/day
Perihelion dist (q)0.97847130 AU
Aphelion dist (Q)2.83491370 AU
Orbital Period2.63281890 yr
Physical Parameters
H (abs. magnitude)25.54
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.840″
Uncertainty8
Orbit TypeApollo
MOID0.042805 AU
Observations Used17
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-04-21
Observations (17)
Date Type RA Dec Mag Band Observatory
2021-04-17 04:58:23 C 11 19 05.83 +30 17 13.2 – V G96
2021-04-17 05:07:24 C 11 19 11.10 +30 16 01.7 – V G96
2021-04-17 05:16:22 C 11 19 16.36 +30 14 49.8 – V G96
2021-04-17 05:25:21 C 11 19 21.59 +30 13 38.6 – V G96
2021-04-17 07:01:56 C 11 20 17.95 +30 00 44.6 – V I52
2021-04-17 07:16:28 C 11 20 26.49 +29 58 47.5 – V I52
2021-04-17 07:31:00 C 11 20 34.95 +29 56 50.2 – V I52
2021-04-18 03:19:59 C 11 32 29.28 +27 18 50.8 – V I52
2021-04-18 03:29:41 C 11 32 34.46 +27 17 34.0 – V I52
2021-04-18 03:39:22 C 11 32 39.73 +27 16 17.0 – V I52
2021-04-19 03:19:46 C 11 45 40.67 +24 07 42.1 – V V06
2021-04-19 03:29:12 C 11 45 45.37 +24 06 28.8 – V V06
2021-04-19 03:33:55 C 11 45 47.73 +24 05 51.5 – V V06
2021-04-21 07:34:15 C 12 10 34.74 +17 26 28.2 – V V06
2021-04-21 07:37:22 C 12 10 36.00 +17 26 05.3 – V V06
2021-04-21 07:40:29 C 12 10 37.26 +17 25 42.4 – V V06
2021-04-21 07:43:35 C 12 10 38.56 +17 25 18.9 – V V06