2021 HN

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6314033000
Semi-major axis (a)2.1624919000 AU
Inclination (i)16.16291000°
Long. of Asc. Node (Ω)29.39409000°
Arg. of Perihelion (ω)242.22959000°
Mean Anomaly (M)147.52373000°
Mean Motion (n)0.3099362200°/day
Perihelion dist (q)0.79708740 AU
Aphelion dist (Q)3.52789640 AU
Orbital Period3.18003380 yr
Physical Parameters
H (abs. magnitude)26.90
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.380″
Uncertainty3
Orbit TypeApollo
MOID0.000015 AU
Observations Used71
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-04-19
Observations (71)
Date Type RA Dec Mag Band Observatory
2021-04-18 20:55:49 C 14 23 36.34 +40 09 31.5 V Z80
2021-04-18 20:57:18 C 14 23 41.78 +40 12 05.8 V J69
2021-04-18 20:59:39 C 14 23 47.65 +40 15 55.4 V J69
2021-04-18 21:10:00 C 14 24 13.68 +40 32 52.2 V J95
2021-04-18 21:11:13 C 14 24 16.82 +40 34 55.5 V J95
2021-04-18 21:12:29 C 14 24 20.19 +40 37 05.2 V J95
2021-04-18 21:13:44 C 14 24 23.47 +40 39 12.7 V J95
2021-04-18 23:16:01 C 14 31 03.89 +44 48 10.5 V Z80
2021-04-18 23:19:32 C 14 31 18.57 +44 56 44.1 V Z80
2021-04-18 23:25:54 C 14 31 45.79 +45 12 29.5 V Z80
2021-04-18 23:29:24 C 14 32 01.11 +45 21 17.5 V Z80
2021-04-18 23:36:06 C 14 32 31.16 +45 38 24.1 V Z80
2021-04-18 23:39:21 C 14 32 45.99 +45 46 49.3 V Z80
2021-04-18 23:42:45 C 14 33 01.84 +45 55 43.1 V Z80
2021-04-19 00:57:38 C 14 40 14.31 +49 39 16.7 V J95
2021-04-19 00:58:51 C 14 40 22.96 +49 43 25.0 V J95
2021-04-19 01:03:56 C 14 40 59.51 +50 00 48.4 V J95
2021-04-19 01:05:08 C 14 41 08.24 +50 04 55.5 V J95
2021-04-19 03:12:01 C 15 06 36.51 +59 22 18.9 V J95
2021-04-19 03:14:32 C 15 07 26.23 +59 36 07.3 V J95
2021-04-19 03:22:45 C 15 10 18.66 +60 22 21.1 V J95