2021 XH1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5067499000 ± 2.00e+00
Semi-major axis (a)1.5584316000 AU ± 3.00e+00
Inclination (i)8.33431000° ± 4.00e+00
Long. of Asc. Node (Ω)75.04205000° ± 5.00e+00
Arg. of Perihelion (ω)278.15547000° ± 6.00e+00
Mean Anomaly (M)41.51011000° ± 4.64e+02
Mean Motion (n)0.5066084803°/day ± 1.46e+00
Perihelion dist (q)0.76869650 AU ± 3.45e+00
Aphelion dist (Q)2.34816670 AU ± 5.49e+00
Orbital Period1.94550170 yr ± 5.62e+00
Physical Parameters
H (abs. magnitude)25.79
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual—″
Uncertainty6
Orbit TypeApollo
MOID0.027661 AU
Observations Used37
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-12-09
Observations (37)
Date Type RA Dec Mag Band Observatory
2021-12-02 06:11:12 C 04 38 12.97 +06 49 58.8 V G96
2021-12-02 06:18:38 C 04 38 12.27 +06 51 31.1 V G96
2021-12-02 06:26:05 C 04 38 11.58 +06 53 03.0 V G96
2021-12-02 06:33:33 C 04 38 10.86 +06 54 35.4 V G96
2021-12-02 08:37:58 C 04 37 59.16 +07 19 51.1 V I52
2021-12-02 08:38:46 C 04 37 59.06 +07 20 01.3 V I52
2021-12-02 21:34:46 C 04 37 26.66 +09 44 26.9 V 033
2021-12-02 21:35:37 C 04 37 26.63 +09 44 36.0 V 033
2021-12-02 21:36:27 C 04 37 26.59 +09 44 44.6 V 033
2021-12-02 22:41:30 C 04 37 22.18 +09 56 11.9 V 204
2021-12-02 23:08:50 C 04 37 20.09 +10 00 53.9 V 204
2021-12-03 04:22:23 C 04 37 08.57 +10 53 20.0 u H21
2021-12-03 04:26:24 C 04 37 08.25 +10 53 59.5 u H21
2021-12-03 04:30:26 C 04 37 07.95 +10 54 38.7 u H21
2021-12-03 04:34:51 C 04 37 07.62 +10 55 21.8 u H21
2021-12-03 04:45:45 C 04 37 10.00 +10 57 19.6 V I52
2021-12-03 04:46:03 C 04 37 10.04 +10 57 22.1 V I52
2021-12-03 04:46:22 C 04 37 09.98 +10 57 25.3 V I52
2021-12-03 04:46:40 C 04 37 09.96 +10 57 28.9 V I52
2021-12-03 07:48:12 C 04 36 54.00 +11 26 05.5 V 734
2021-12-03 08:03:10 C 04 36 52.94 +11 28 25.5 V 734
2021-12-03 08:11:47 C 04 36 52.32 +11 29 46.0 V 734
2021-12-03 19:45:18 C 04 36 33.15 +13 11 05.3 V 033
2021-12-03 19:46:18 C 04 36 33.10 +13 11 13.9 V 033
2021-12-03 19:47:16 C 04 36 33.01 +13 11 22.2 V 033
2021-12-03 19:48:20 C 04 36 33.00 +13 11 31.1 V 033
2021-12-03 21:52:41 C 04 36 25.62 +13 28 49.3 V L01
2021-12-03 21:55:40 C 04 36 25.39 +13 29 13.5 V L01
2021-12-03 21:58:30 C 04 36 25.20 +13 29 36.0 V L01
2021-12-03 22:01:43 C 04 36 25.08 +13 30 02.8 V L01
2021-12-03 22:04:42 C 04 36 24.87 +13 30 27.0 V L01
2021-12-08 09:58:50 C 04 33 43.69 +22 55 55.6 o 291
2021-12-08 10:09:45 C 04 33 43.37 +22 56 30.6 o 291
2021-12-09 06:35:11 C 04 33 31.28 +24 00 09.4 V G96
2021-12-09 06:43:16 C 04 33 30.98 +24 00 33.8 V G96
2021-12-09 06:51:20 C 04 33 30.75 +24 00 57.6 V G96
2021-12-09 06:59:24 C 04 33 30.51 +24 01 20.4 V G96