2021 HN

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6314033000
Semi-major axis (a)2.1624919000 AU
Inclination (i)16.16291000°
Long. of Asc. Node (Ω)29.39409000°
Arg. of Perihelion (ω)242.22959000°
Mean Anomaly (M)147.52373000°
Mean Motion (n)0.3099362200°/day
Perihelion dist (q)0.79708740 AU
Aphelion dist (Q)3.52789640 AU
Orbital Period3.18003380 yr
Physical Parameters
H (abs. magnitude)26.90
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.380″
Uncertainty3
Orbit TypeApollo
MOID0.000015 AU
Observations Used71
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-04-19
Observations (71)
Date Type RA Dec Mag Band Observatory
2021-04-16 23:37:40 C 14 01 56.83 +25 07 17.4 o K88
2021-04-16 23:38:39 C 14 01 56.82 +25 07 20.9 o K88
2021-04-17 07:22:05 C 14 02 44.17 +25 46 02.1 V G96
2021-04-17 07:30:32 C 14 02 44.11 +25 46 49.8 V G96
2021-04-17 07:38:59 C 14 02 44.03 +25 47 37.5 V G96
2021-04-17 07:47:27 C 14 02 43.97 +25 48 25.1 V G96
2021-04-17 10:24:25 C 14 02 44.26 +26 03 24.2 V I52
2021-04-17 10:25:37 C 14 02 44.29 +26 03 31.2 V I52
2021-04-17 10:26:50 C 14 02 44.31 +26 03 38.3 V I52
2021-04-17 11:30:12 C 14 02 46.60 +26 09 57.5 V 291
2021-04-17 11:32:14 C 14 02 46.70 +26 10 09.8 V 291
2021-04-17 11:34:16 C 14 02 46.79 +26 10 22.0 V 291
2021-04-17 21:23:32 C 14 05 05.81 +27 32 17.2 V 203
2021-04-17 21:35:27 C 14 05 04.98 +27 34 35.4 V 595
2021-04-17 21:47:51 C 14 05 06.30 +27 36 57.2 V 595
2021-04-17 21:57:33 C 14 05 09.58 +27 38 45.3 V 203
2021-04-17 22:00:16 C 14 05 07.53 +27 39 19.2 V 595
2021-04-17 22:00:41 C 14 05 07.62 +27 39 30.9 d L01
2021-04-17 22:02:56 C 14 05 07.85 +27 39 56.9 d L01
2021-04-17 22:07:25 C 14 05 08.26 +27 40 48.6 d L01
2021-04-17 22:09:17 C 14 05 08.46 +27 41 09.8 d L01
2021-04-17 22:21:51 C 14 05 16.93 +27 42 42.8 V Z43
2021-04-17 22:31:02 C 14 05 18.09 +27 44 32.7 V Z43
2021-04-17 22:39:53 C 14 05 19.22 +27 46 17.9 V Z43
2021-04-17 23:52:16 C 14 05 20.27 +28 01 57.8 V 104
2021-04-17 23:56:35 C 14 05 20.67 +28 02 51.5 V 104
2021-04-18 00:00:52 C 14 05 21.09 +28 03 45.5 V 104
2021-04-18 05:55:08 C 14 07 38.74 +29 36 57.1 V I52
2021-04-18 05:55:25 C 14 07 38.82 +29 37 03.1 V I52
2021-04-18 05:55:42 C 14 07 38.88 +29 37 09.0 V I52
2021-04-18 05:55:58 C 14 07 38.91 +29 37 14.0 V I52
2021-04-18 07:56:55 C 14 08 04.44 +30 19 18.5 V 703
2021-04-18 08:04:28 C 14 08 06.19 +30 22 04.3 V 703
2021-04-18 08:12:02 C 14 08 07.84 +30 24 53.5 V 703
2021-04-18 08:19:35 C 14 08 09.71 +30 27 45.8 V 703
2021-04-18 08:19:58 C 14 08 16.51 +30 27 29.6 V 654
2021-04-18 09:00:06 C 14 08 26.57 +30 43 08.8 V 654
2021-04-18 09:30:04 C 14 08 34.70 +30 55 18.1 V 654
2021-04-18 15:05:48 C 14 13 03.49 +34 02 14.2 q 900
2021-04-18 15:10:20 C 14 13 06.54 +34 05 35.9 q 900
2021-04-18 15:14:53 C 14 13 09.59 +34 08 58.7 q 900
2021-04-18 20:17:56 C 14 22 08.50 +39 10 59.7 V J69
2021-04-18 20:20:16 C 14 22 13.75 +39 14 26.2 V J69
2021-04-18 20:22:36 C 14 22 19.04 +39 17 54.6 V J69
2021-04-18 20:24:56 C 14 22 24.35 +39 21 23.7 V J69
2021-04-18 20:27:17 C 14 22 29.73 +39 24 56.2 V J69
2021-04-18 20:42:29 C 14 23 03.82 +39 48 13.6 V Z80
2021-04-18 20:49:09 C 14 23 19.93 +39 58 47.2 V Z80
2021-04-18 20:52:38 C 14 23 30.12 +40 04 29.9 V J69
2021-04-18 20:54:58 C 14 23 35.93 +40 08 16.9 V J69