2021 HG1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2996706480 ± 4.97e-05
Semi-major axis (a)0.9295457435 AU ± 7.42e-07
Inclination (i)10.53011564° ± 2.61e-03
Long. of Asc. Node (Ω)209.67692602° ± 2.63e-04
Arg. of Perihelion (ω)128.26052588° ± 2.33e-03
Mean Anomaly (M)307.16471648° ± 4.66e-03
Mean Motion (n)1.0997807820°/day ± 1.32e-06
Perihelion dist (q)0.65098817 AU ± 4.62e-05
Aphelion dist (Q)1.20810332 AU ± 4.62e-05
Orbital Period0.89620250 yr ± 1.07e-06
Physical Parameters
H (abs. magnitude)27.05
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.249″
Uncertainty1
Orbit TypeAten
MOID0.017012 AU
Observations Used56
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-17
Last Observation Used2021-04-24
Observations (56)
Date Type RA Dec Mag Band Observatory
2021-04-24 20:56:23 C 15 50 12.11 +54 24 25.0 V 033
2021-04-24 20:56:53 C 15 50 12.63 +54 24 49.5 V 033
2021-04-24 20:57:23 C 15 50 13.15 +54 25 14.8 V 033
2021-04-24 20:57:52 C 15 50 13.66 +54 25 39.4 V 033
2021-04-24 20:58:36 C 15 50 14.42 +54 26 15.7 V 033
2021-04-24 20:59:23 C 15 50 15.27 +54 26 55.4 V 033