IAA RAS IAA Minor Planet Database

2021 HN1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3580640000
Semi-major axis (a)1.8177058000 AU
Inclination (i)6.58365000°
Long. of Asc. Node (Ω)226.97979000°
Arg. of Perihelion (ω)349.98569000°
Mean Anomaly (M)310.05727000°
Mean Motion (n)0.4021783300°/day
Perihelion dist (q)1.16685080 AU
Aphelion dist (Q)2.46856080 AU
Orbital Period2.45067310 yr
Physical Parameters
H (abs. magnitude)24.53
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.800″
Uncertainty7
Orbit TypeAmor
MOID0.159968 AU
Observations Used17
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-05-01
Observations (17)
Date Type RA Dec Mag Band Observatory
2021-04-17 09:50:42 C 12 28 35.802 -20 41 24.65 – U F51
2021-04-17 10:07:25 C 12 28 37.166 -20 41 09.55 – U F51
2021-04-17 10:24:08 C 12 28 38.529 -20 40 54.63 – U F51
2021-04-17 10:40:51 C 12 28 39.911 -20 40 39.32 – U F51
2021-04-18 04:14:30 C 12 30 22.77 -20 24 16.3 – V 807
2021-04-18 04:19:49 C 12 30 23.23 -20 24 11.4 – V 807
2021-04-18 04:25:07 C 12 30 23.69 -20 24 06.5 – V 807
2021-04-19 02:34:03 C 12 32 37.40 -20 03 42.2 – V 807
2021-04-19 02:39:22 C 12 32 37.86 -20 03 37.2 – V 807
2021-04-19 02:44:41 C 12 32 38.32 -20 03 32.4 – V 807
2021-04-19 11:07:12 C 12 33 28.89 -19 55 28.9 – V 474
2021-04-19 11:12:16 C 12 33 29.37 -19 55 24.0 – V 474
2021-04-19 11:17:20 C 12 33 29.85 -19 55 18.6 – V 474
2021-04-19 11:22:24 C 12 33 30.26 -19 55 14.6 – V 474
2021-05-01 07:54:48 C 13 06 49.42 -14 50 11.1 – V I52
2021-05-01 08:04:36 C 13 06 50.53 -14 49 59.2 – V I52
2021-05-01 08:14:24 C 13 06 51.65 -14 49 47.8 – V I52