IAA RAS IAA Minor Planet Database

2021 HF

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6134911000
Semi-major axis (a)2.6431143000 AU
Inclination (i)26.68633000°
Long. of Asc. Node (Ω)54.32524000°
Arg. of Perihelion (ω)114.55382000°
Mean Anomaly (M)34.53165000°
Mean Motion (n)0.2293665900°/day
Perihelion dist (q)1.02158720 AU
Aphelion dist (Q)4.26464140 AU
Orbital Period4.29708470 yr
Physical Parameters
H (abs. magnitude)21.66
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.760″
Uncertainty6
Orbit TypeAmor
MOID0.217472 AU
Observations Used44
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-05-14
Observations (48)
Date Type RA Dec Mag Band Observatory
2021-04-15 10:35:42 C 17 41 14.11 +27 51 53.7 – V G96
2021-04-15 10:54:41 C 17 41 11.41 +27 50 41.4 – V G96
2021-04-17 10:59:41 C 17 34 41.59 +24 41 38.8 – V G96
2021-04-17 11:08:03 C 17 34 40.40 +24 41 05.2 – V G96
2021-04-17 11:16:24 C 17 34 39.19 +24 40 31.4 – V G96
2021-04-17 11:24:46 C 17 34 37.97 +24 39 57.6 – V G96
2021-04-17 11:56:27 C 17 34 33.29 +24 37 49.0 – V G96
2021-04-17 11:57:22 C 17 34 33.14 +24 37 45.2 – V G96
2021-04-17 11:58:17 C 17 34 33.04 +24 37 41.3 – V G96
2021-04-18 02:32:34 C 17 32 32.56 +23 37 53.4 – V L01
2021-04-18 02:36:19 C 17 32 31.99 +23 37 38.2 – V L01
2021-04-18 02:44:07 C 17 32 30.85 +23 37 06.5 – V L01
2021-04-18 02:47:32 C 17 32 30.37 +23 36 51.8 – V L01
2021-04-18 02:51:17 C 17 32 29.84 +23 36 36.7 – V L01
2021-04-18 08:57:03 C 17 31 39.97 +23 11 24.4 – V I52
2021-04-18 09:02:35 C 17 31 39.13 +23 11 01.3 – V I52
2021-04-18 09:08:07 C 17 31 38.31 +23 10 38.5 – V I52
2021-04-20 11:11:20 C 17 24 29.74 +19 36 15.5 – V I52
2021-04-20 11:13:45 C 17 24 29.36 +19 36 05.1 – V I52
2021-04-20 11:16:11 C 17 24 28.98 +19 35 54.2 – V I52
2021-04-20 11:18:36 C 17 24 28.62 +19 35 43.1 – V I52
2021-04-29 22:58:28 C 16 49 32.67 +01 38 34.6 – V 033
2021-04-29 23:01:08 C 16 49 32.22 +01 38 21.2 – V 033
2021-04-29 23:03:47 C 16 49 31.82 +01 38 08.3 – V 033
2021-05-01 08:29:09 C 16 44 10.10 -01 02 40.3 – V I52
2021-05-01 08:31:41 C 16 44 09.66 -01 02 52.7 – V I52
2021-05-01 08:34:13 C 16 44 09.23 -01 03 04.4 – V I52
2021-05-05 08:13:09 C 16 28 47.15 -08 26 11.5 – V I52
2021-05-05 08:13:45 C 16 28 47.08 -08 26 13.3 – V I52
2021-05-05 08:14:21 C 16 28 46.90 -08 26 16.5 – V I52
2021-05-05 08:14:57 C 16 28 46.78 -08 26 18.7 – V I52
2021-05-07 09:46:21 C 16 20 53.19 -12 00 02.7 – V I52
2021-05-07 09:46:57 C 16 20 53.08 -12 00 05.7 – V I52
2021-05-07 09:48:10 C 16 20 52.86 -12 00 10.5 – V I52
2021-05-08 11:18:22 C 16 16 51.55 -13 44 58.0 – V I52
2021-05-08 11:18:59 C 16 16 51.54 -13 44 59.1 – V I52
2021-05-08 11:19:35 C 16 16 51.39 -13 45 01.2 – V I52
2021-05-08 11:20:11 C 16 16 51.40 -13 45 03.8 – V I52
2021-05-10 08:43:44 C 16 09 50.95 -16 41 54.7 – V I52
2021-05-10 08:44:21 C 16 09 50.81 -16 41 56.8 – V I52
2021-05-10 08:44:57 C 16 09 50.76 -16 41 59.3 – V I52
2021-05-10 08:45:33 C 16 09 50.66 -16 42 01.5 – V I52
2021-05-12 09:59:31 C 16 02 25.45 -19 38 57.8 – V I52
2021-05-12 10:00:07 C 16 02 25.34 -19 39 00.0 – V I52
2021-05-14 08:24:15 C 15 55 41.65 -22 11 21.9 – V G96
2021-05-14 08:32:10 C 15 55 40.45 -22 11 46.7 – V G96
2021-05-14 08:40:05 C 15 55 39.24 -22 12 12.0 – V G96
2021-05-14 08:48:00 C 15 55 38.12 -22 12 36.2 – V G96