IAA RAS IAA Minor Planet Database

2021 HZ1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2742903274 ± 9.78e-05
Semi-major axis (a)1.3802745128 AU ± 1.99e-04
Inclination (i)15.78447211° ± 4.04e-03
Long. of Asc. Node (Ω)199.07485305° ± 8.13e-04
Arg. of Perihelion (ω)65.91528713° ± 4.18e-03
Mean Anomaly (M)267.82499802° ± 2.11e-01
Mean Motion (n)0.6078047268°/day ± 1.32e-04
Perihelion dist (q)1.00167856 AU ± 1.98e-04
Aphelion dist (Q)1.75887046 AU ± 2.88e-04
Orbital Period1.62161668 yr ± 3.51e-04
Physical Parameters
H (abs. magnitude)23.28
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.244″
Uncertainty3
Orbit TypeApollo
MOID0.110231 AU
Observations Used64
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-04
Last Observation Used2021-05-02
Observations (64)
Date Type RA Dec Mag Band Observatory
2021-04-04 10:16:19 C 14 35 03.63 -16 45 07.6 – V G96
2021-04-04 10:23:45 C 14 35 04.66 -16 44 42.3 – V G96
2021-04-04 10:31:11 C 14 35 05.75 -16 44 16.9 – V G96
2021-04-19 09:10:55 C 15 46 40.85 +14 31 06.7 – V G96
2021-04-19 09:22:55 C 15 46 43.68 +14 32 28.2 – V G96
2021-04-19 09:31:20 C 15 46 45.64 +14 33 25.1 – V G96
2021-04-19 09:39:39 C 15 46 47.56 +14 34 21.0 – V G96
2021-04-19 11:21:28 C 15 47 11.48 +14 45 48.0 – V I52
2021-04-19 11:22:53 C 15 47 11.88 +14 45 58.0 – V I52
2021-04-19 11:24:18 C 15 47 12.15 +14 46 07.4 – V I52
2021-04-19 21:53:26 C 15 49 57.55 +15 56 51.6 – V 033
2021-04-19 21:55:30 C 15 49 58.04 +15 57 05.4 – V 033
2021-04-19 21:57:35 C 15 49 58.55 +15 57 19.7 – V 033
2021-04-20 01:49:26 C 15 50 55.05 +16 23 45.0 – V L01
2021-04-20 01:52:24 C 15 50 55.76 +16 24 05.9 – V L01
2021-04-20 01:55:24 C 15 50 56.49 +16 24 26.0 – V L01
2021-04-20 02:01:23 C 15 50 57.96 +16 25 06.3 – V L01
2021-04-20 02:04:28 C 15 50 58.69 +16 25 27.2 – V L01
2021-04-20 07:53:27 C 15 52 31.85 +17 05 15.3 – V I52
2021-04-20 07:55:16 C 15 52 32.29 +17 05 27.6 – V I52
2021-04-20 07:58:54 C 15 52 33.18 +17 05 52.7 – V I52
2021-04-22 21:44:53 C 16 09 16.72 +24 03 03.4 – V 033
2021-04-22 21:46:59 C 16 09 17.27 +24 03 17.0 – V 033
2021-04-22 21:49:03 C 16 09 17.85 +24 03 31.1 – V 033
2021-04-22 21:51:10 C 16 09 18.41 +24 03 45.2 – V 033
2021-04-23 07:31:22 C 16 12 01.68 +25 08 26.6 – V I52
2021-04-23 07:39:29 C 16 12 03.86 +25 09 21.0 – V I52
2021-04-23 07:43:00 C 16 12 04.80 +25 09 44.3 – V I52
2021-04-23 21:10:57 C 16 15 56.86 +26 37 45.1 – V 033
2021-04-23 21:13:07 C 16 15 57.48 +26 37 59.1 – V 033
2021-04-23 21:17:58 C 16 15 58.82 +26 38 30.7 – V 033
2021-04-23 21:20:13 C 16 15 59.50 +26 38 45.7 – V 033
2021-04-23 22:07:56 C 16 16 12.78 +26 44 01.9 – V 033
2021-04-23 22:10:06 C 16 16 13.40 +26 44 16.2 – V 033
2021-04-23 22:12:16 C 16 16 14.01 +26 44 29.6 – V 033
2021-04-23 22:14:39 C 16 16 14.68 +26 44 45.4 – V 033
2021-04-23 22:16:53 C 16 16 15.29 +26 45 00.3 – V 033
2021-04-24 10:37:24 C 16 19 46.47 +28 05 31.3 – V 291
2021-04-24 10:46:57 C 16 19 49.06 +28 06 32.5 – V 291
2021-04-24 10:51:43 C 16 19 50.37 +28 07 02.8 – V 291
2021-04-24 22:51:59 C 16 23 26.17 +29 23 17.3 – V 033
2021-04-24 22:54:09 C 16 23 26.76 +29 23 31.1 – V 033
2021-04-24 22:56:19 C 16 23 27.36 +29 23 44.9 – V 033
2021-04-24 22:58:31 C 16 23 28.00 +29 23 59.1 – V 033
2021-04-24 23:00:48 C 16 23 28.63 +29 24 13.2 – V 033
2021-04-25 09:16:42 C 16 26 30.31 +30 29 18.9 – V I52
2021-04-25 09:18:31 C 16 26 30.81 +30 29 30.7 – V I52
2021-04-25 09:20:19 C 16 26 31.30 +30 29 41.9 – V I52
2021-04-25 09:22:08 C 16 26 31.82 +30 29 53.1 – V I52
2021-04-25 22:40:38 C 16 30 34.60 +31 51 44.9 – V 033