IAA RAS IAA Minor Planet Database

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
2021-04-19 08:37:41 C 14 51 32.35 +13 38 32.4 – V G96
2021-04-19 08:46:00 C 14 51 34.88 +13 39 27.4 – V G96
2021-04-19 08:54:24 C 14 51 37.45 +13 40 22.1 – V G96
2021-04-19 09:02:45 C 14 51 40.05 +13 41 16.7 – V G96
2021-04-19 10:51:27 C 14 52 13.94 +13 53 12.6 – V V06
2021-04-19 10:54:36 C 14 52 14.93 +13 53 33.7 – V V06
2021-04-19 10:57:46 C 14 52 15.93 +13 53 54.3 – V V06
2021-04-19 11:00:55 C 14 52 16.92 +13 54 15.2 – V V06
2021-04-19 12:08:09 C 14 52 42.020 +14 02 07.99 – U F51
2021-04-19 12:26:23 C 14 52 47.745 +14 04 10.18 – U F51
2021-04-19 13:02:54 C 14 52 59.291 +14 08 15.36 – U F51
2021-04-19 22:00:05 C 14 56 15.61 +15 10 08.7 – V 033
2021-04-19 22:01:55 C 14 56 16.26 +15 10 21.9 – V 033
2021-04-19 22:03:44 C 14 56 16.91 +15 10 35.5 – V 033
2021-04-20 04:36:20 C 14 58 49.38 +15 59 27.8 – V H01
2021-04-20 04:41:13 C 14 58 51.23 +16 00 05.2 – V H01
2021-04-20 04:58:13 C 14 58 57.68 +16 02 16.1 – V H01
2021-04-20 05:08:58 C 14 59 01.75 +16 03 39.1 – V H01
2021-04-20 06:11:27 C 14 59 25.77 +16 11 43.4 – V I52
2021-04-20 06:13:52 C 14 59 26.69 +16 12 02.6 – V I52
2021-04-20 06:16:18 C 14 59 27.63 +16 12 21.3 – V I52
2021-04-20 06:18:43 C 14 59 28.52 +16 12 40.1 – V I52
2021-04-20 23:04:30 C 15 06 43.76 +18 30 06.6 – V 033
2021-04-20 23:06:05 C 15 06 44.48 +18 30 20.4 – V 033
2021-04-20 23:07:39 C 15 06 45.19 +18 30 34.1 – V 033
2021-04-21 08:19:39 C 15 11 16.75 +19 54 49.8 – V I52
2021-04-21 08:21:47 C 15 11 17.87 +19 55 10.9 – V I52
2021-04-21 08:23:55 C 15 11 18.91 +19 55 30.9 – V I52
2021-04-21 08:26:03 C 15 11 19.94 +19 55 51.0 – V I52
2021-04-22 09:52:24 C 15 26 29.28 +24 21 27.0 – V I52
2021-04-22 09:56:40 C 15 26 32.10 +24 22 16.5 – V I52
2021-04-22 09:58:48 C 15 26 33.44 +24 22 40.4 – V I52
2021-04-23 06:41:02 C 15 42 52.44 +28 40 13.4 – V I52
2021-04-23 06:45:19 C 15 42 56.05 +28 41 11.1 – V I52
2021-04-23 06:49:35 C 15 42 59.72 +28 42 08.5 – V I52
2021-04-23 20:13:08 C 15 56 02.43 +31 48 45.0 – V 033
2021-04-23 20:14:03 C 15 56 03.42 +31 48 58.9 – V 033
2021-04-23 20:14:58 C 15 56 04.36 +31 49 12.5 – V 033
2021-04-23 20:15:53 C 15 56 05.33 +31 49 25.5 – V 033
2021-04-23 20:16:47 C 15 56 06.26 +31 49 39.2 – V 033
2021-04-24 07:58:10 C 16 09 30.68 +34 47 34.7 – V I52
2021-04-24 08:00:37 C 16 09 33.61 +34 48 12.6 – V I52
2021-04-24 08:03:04 C 16 09 36.57 +34 48 51.5 – V I52
2021-04-24 08:08:59 C 16 09 43.73 +34 50 23.6 – V I52
2021-04-24 21:47:13 C 16 28 36.93 +38 27 34.7 – V 033
2021-04-24 21:47:58 C 16 28 38.04 +38 27 46.8 – V 033
2021-04-24 21:48:42 C 16 28 39.13 +38 27 59.5 – V 033
2021-04-24 21:49:27 C 16 28 40.28 +38 28 11.8 – V 033
2021-04-24 21:50:12 C 16 28 41.41 +38 28 24.0 – V 033
2021-04-25 21:24:19 C 17 11 28.99 +44 55 59.7 – V 033