IAA RAS IAA Minor Planet Database

2021 HG

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2176970000
Semi-major axis (a)1.3650425000 AU
Inclination (i)9.83040000°
Long. of Asc. Node (Ω)46.16815000°
Arg. of Perihelion (ω)133.81920000°
Mean Anomaly (M)332.93411000°
Mean Motion (n)0.6179948200°/day
Perihelion dist (q)1.06787680 AU
Aphelion dist (Q)1.66220820 AU
Orbital Period1.59484790 yr
Physical Parameters
H (abs. magnitude)24.65
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.660″
Uncertainty8
Orbit TypeAmor
MOID0.101952 AU
Observations Used19
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-04-29
Observations (19)
Date Type RA Dec Mag Band Observatory
2021-04-15 06:25:57 C 12 53 55.82 +38 27 27.4 – V G96
2021-04-15 06:34:55 C 12 53 55.41 +38 26 50.3 – V G96
2021-04-17 06:15:26 C 12 53 21.76 +35 04 31.6 – V G96
2021-04-17 06:23:40 C 12 53 21.47 +35 03 55.5 – V G96
2021-04-17 06:31:57 C 12 53 21.21 +35 03 19.0 – V G96
2021-04-17 06:40:11 C 12 53 20.94 +35 02 43.8 – V G96
2021-04-17 08:28:48 C 12 53 17.44 +34 54 46.7 – V G96
2021-04-17 08:29:53 C 12 53 17.40 +34 54 42.0 – V G96
2021-04-17 08:30:58 C 12 53 17.41 +34 54 36.5 – V G96
2021-04-18 04:23:18 C 12 53 11.61 +33 27 19.9 – V I52
2021-04-18 04:34:21 C 12 53 11.26 +33 26 31.8 – V I52
2021-04-18 04:45:25 C 12 53 10.92 +33 25 43.4 – V I52
2021-04-29 20:57:39 C 12 53 44.07 +11 39 50.6 – V 033
2021-04-29 21:01:03 C 12 53 44.07 +11 39 35.0 – V 033
2021-04-29 21:04:27 C 12 53 44.06 +11 39 19.3 – V 033
2021-04-29 21:07:52 C 12 53 44.02 +11 39 03.4 – V 033
2021-04-29 21:31:24 C 12 53 44.03 +11 37 16.0 – V 033
2021-04-29 21:34:49 C 12 53 44.04 +11 37 00.6 – V 033
2021-04-29 21:38:13 C 12 53 44.03 +11 36 44.8 – V 033