2021 XH2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6787332137 ± 5.23e-08
Semi-major axis (a)2.2199727767 AU ± 1.09e-08
Inclination (i)17.74499084° ± 9.86e-06
Long. of Asc. Node (Ω)311.18302439° ± 4.33e-05
Arg. of Perihelion (ω)215.08082047° ± 4.41e-05
Mean Anomaly (M)53.47978739° ± 2.90e-06
Mean Motion (n)0.2979825299°/day ± 2.19e-09
Perihelion dist (q)0.71320352 AU ± 1.16e-07
Aphelion dist (Q)3.72674203 AU ± 1.17e-07
Orbital Period3.30766466 yr ± 2.43e-08
Physical Parameters
H (abs. magnitude)19.86
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.220″
Uncertainty0
Orbit TypeApollo
MOID0.150440 AU
Observations Used82
Oppositions9
Arc Total2011-2024
First Observation Used2011-10-20
Last Observation Used2024-11-22
Observations (84)
Date Type RA Dec Mag Band Observatory
2021-12-03 23:35:46 C 09 37 21.96 +74 28 50.6 V L01
2021-12-03 23:38:01 C 09 37 23.63 +74 28 52.4 V L01
2021-12-03 23:40:16 C 09 37 25.22 +74 28 54.2 V L01
2021-12-03 23:42:31 C 09 37 26.75 +74 28 55.9 V L01
2021-12-03 23:44:46 C 09 37 28.43 +74 28 57.3 V L01
2021-12-05 16:38:05 C 10 08 59.32 +74 49 34.4 V 033
2021-12-05 16:38:30 C 10 08 59.62 +74 49 34.4 V 033
2021-12-05 16:38:54 C 10 08 59.94 +74 49 34.5 V 033
2021-12-05 16:39:28 C 10 09 00.42 +74 49 34.6 V 033
2021-12-07 02:22:44 C 10 37 44.80 +74 54 32.7 V 033
2021-12-07 02:23:54 C 10 37 45.79 +74 54 32.9 V 033
2021-12-07 02:25:03 C 10 37 46.85 +74 54 32.7 V 033
2021-12-07 02:26:19 C 10 37 47.87 +74 54 32.7 V 033
2021-12-16 02:10:14 C 13 44 58.60 +67 59 23.5 V Z99
2021-12-16 02:14:00 C 13 45 01.21 +67 59 08.4 V Z99
2021-12-16 02:17:46 C 13 45 03.88 +67 58 53.1 V Z99
2021-12-16 02:21:31 C 13 45 06.43 +67 58 38.2 V Z99
2021-12-18 17:13:58 C 14 24 00.36 +63 00 44.6 V 204
2021-12-18 17:27:16 C 14 24 07.83 +62 59 31.8 V 204
2021-12-18 17:38:55 C 14 24 14.43 +62 58 28.0 V 204
2021-12-26 04:00:32 C 15 36 11.49 +41 28 01.7 V 033
2021-12-26 04:00:56 C 15 36 11.59 +41 27 57.9 V 033
2021-12-26 04:01:21 C 15 36 11.72 +41 27 54.9 V 033
2021-12-26 04:01:54 C 15 36 11.89 +41 27 49.8 V 033
2021-12-26 05:22:05 C 15 36 34.60 +41 16 05.1 V 033
2021-12-26 05:22:29 C 15 36 34.73 +41 16 01.3 V 033
2021-12-26 05:22:54 C 15 36 34.84 +41 15 57.8 V 033
2021-12-26 05:23:21 C 15 36 34.95 +41 15 53.5 V 033
2022-07-01 07:51:20 C 20 55 59.52 -27 43 37.1 V 807
2022-07-01 08:07:35 C 20 55 58.04 -27 43 35.8 V 807
2022-07-01 08:24:05 C 20 55 56.55 -27 43 37.1 V 807
2024-11-04 07:47:03 C 00 11 42.091 +31 13 13.75 V T12
2024-11-22 07:50:57 C 23 53 57.596 +27 37 08.63 V T12
2024-11-22 08:42:59 C 23 53 56.151 +27 36 42.37 V T12