2021 HF2

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6594215027 ± 6.80e-04
Semi-major axis (a)2.2013135321 AU ± 3.90e-03
Inclination (i)3.20308996° ± 3.37e-03
Long. of Asc. Node (Ω)160.98606225° ± 2.48e-02
Arg. of Perihelion (ω)126.70957265° ± 2.69e-02
Mean Anomaly (M)131.15495112° ± 1.31e+00
Mean Motion (n)0.3017792822°/day ± 8.03e-04
Perihelion dist (q)0.74972005 AU ± 2.00e-03
Aphelion dist (Q)3.65290701 AU ± 6.65e-03
Orbital Period3.26605019 yr ± 8.69e-03
Physical Parameters
H (abs. magnitude)24.92
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.291″
Uncertainty4
Orbit TypeApollo
MOID0.015128 AU
Observations Used57
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-19
Last Observation Used2021-04-27
Observations (57)
Date Type RA Dec Mag Band Observatory
2021-04-25 21:24:59 C 17 11 30.40 +44 56 10.8 V 033
2021-04-25 21:25:39 C 17 11 31.77 +44 56 21.7 V 033
2021-04-25 21:26:18 C 17 11 33.21 +44 56 32.9 V 033
2021-04-25 21:26:58 C 17 11 34.59 +44 56 44.0 V 033
2021-04-27 01:54:18 C 18 24 55.63 +51 38 09.0 V 033
2021-04-27 01:55:18 C 18 24 58.57 +51 38 20.0 V 033
2021-04-27 01:56:17 C 18 25 01.52 +51 38 31.1 V 033