2021 HL1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5257589000
Semi-major axis (a)1.4870888000 AU
Inclination (i)24.75846000°
Long. of Asc. Node (Ω)200.61314000°
Arg. of Perihelion (ω)276.35525000°
Mean Anomaly (M)223.89948000°
Mean Motion (n)0.5434989700°/day
Perihelion dist (q)0.70523860 AU
Aphelion dist (Q)2.26893900 AU
Orbital Period1.81344900 yr
Physical Parameters
H (abs. magnitude)25.64
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.730″
Uncertainty9
Orbit TypeApollo
MOID0.009637 AU
Observations Used12
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-04-19
Observations (12)
Date Type RA Dec Mag Band Observatory
2021-04-17 05:41:14 C 11 57 02.95 +29 32 11.6 V G96
2021-04-17 05:49:31 C 11 57 08.56 +29 32 23.3 V G96
2021-04-17 05:57:44 C 11 57 14.01 +29 32 34.9 V G96
2021-04-17 06:05:57 C 11 57 19.57 +29 32 46.5 V G96
2021-04-17 07:45:45 C 11 58 25.87 +29 35 00.5 V I52
2021-04-17 08:00:18 C 11 58 35.47 +29 35 18.9 V I52
2021-04-17 08:14:50 C 11 58 45.12 +29 35 38.1 V I52
2021-04-18 07:45:45 C 12 13 03.57 +30 00 39.7 V G96
2021-04-18 07:46:50 C 12 13 04.16 +30 00 40.0 V G96
2021-04-18 07:47:55 C 12 13 04.64 +30 00 41.1 V G96
2021-04-19 06:18:18 C 12 24 02.17 +30 14 47.3 V G96
2021-04-19 06:23:08 C 12 24 04.14 +30 14 48.6 V G96