IAA RAS IAA Minor Planet Database

2021 XS

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7088112000
Semi-major axis (a)1.1157845000 AU
Inclination (i)19.90938000°
Long. of Asc. Node (Ω)72.80818000°
Arg. of Perihelion (ω)222.54957000°
Mean Anomaly (M)179.76112000°
Mean Motion (n)0.8362451400°/day
Perihelion dist (q)0.32490390 AU
Aphelion dist (Q)1.90666510 AU
Orbital Period1.17861100 yr
Physical Parameters
H (abs. magnitude)24.07
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.870″
Uncertainty8
Orbit TypeApollo
MOID0.051868 AU
Observations Used43
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-12-09
Observations (44)
Date Type RA Dec Mag Band Observatory
2021-11-29 07:53:24 C 05 03 38.82 -06 22 31.2 – V 703
2021-11-29 08:08:34 C 05 03 21.94 -06 18 34.1 – V 703
2021-11-29 08:16:08 C 05 03 13.68 -06 16 35.2 – V 703
2021-12-02 05:41:12 C 04 09 34.98 +06 51 54.6 – V G96
2021-12-02 05:48:40 C 04 09 30.70 +06 52 54.4 – V G96
2021-12-02 05:56:08 C 04 09 26.56 +06 53 52.9 – V G96
2021-12-02 06:03:35 C 04 09 22.31 +06 54 52.3 – V G96
2021-12-02 09:14:41 C 04 07 36.07 +07 19 39.2 – V I52
2021-12-02 09:15:35 C 04 07 35.57 +07 19 46.0 – V I52
2021-12-02 09:16:30 C 04 07 35.07 +07 19 53.1 – V I52
2021-12-02 21:20:57 C 04 01 35.60 +08 47 04.3 – V 033
2021-12-02 21:21:42 C 04 01 35.19 +08 47 09.8 – V 033
2021-12-02 21:24:27 C 04 01 33.85 +08 47 28.5 – V 033
2021-12-02 21:25:12 C 04 01 33.53 +08 47 33.7 – V 033
2021-12-02 21:42:49 C 04 01 25.18 +08 49 39.4 – V 204
2021-12-02 22:02:29 C 04 01 15.52 +08 51 53.3 – V 204
2021-12-03 01:22:35 C 03 59 44.97 +09 14 22.2 – X W34
2021-12-03 01:38:40 C 03 59 37.32 +09 16 09.2 – X W34
2021-12-03 01:55:22 C 03 59 29.40 +09 17 59.4 – X W34
2021-12-03 03:24:02 C 03 58 49.14 +09 27 37.8 – – 858
2021-12-03 03:29:44 C 03 58 45.29 +09 28 11.4 – u H21
2021-12-03 03:33:46 C 03 58 43.41 +09 28 37.5 – u H21
2021-12-03 03:37:47 C 03 58 41.51 +09 29 03.6 – u H21
2021-12-03 03:38:48 C 03 58 42.27 +09 29 14.0 – – 858
2021-12-03 04:02:19 C 03 58 31.72 +09 31 48.7 – V I52
2021-12-03 04:02:39 C 03 58 31.54 +09 31 50.5 – V I52
2021-12-03 04:03:00 C 03 58 31.37 +09 31 52.7 – V I52
2021-12-03 04:03:20 C 03 58 31.22 +09 31 55.6 – V I52
2021-12-03 04:44:00 C 03 58 11.17 +09 36 10.6 – V 734
2021-12-03 04:55:08 C 03 58 06.02 +09 37 22.0 – V 734
2021-12-03 05:04:18 C 03 58 01.76 +09 38 20.9 – V 734
2021-12-04 08:48:13 C 03 46 55.58 +12 15 09.6 – V I52
2021-12-04 08:49:00 C 03 46 55.30 +12 15 13.5 – V I52
2021-12-04 08:49:47 C 03 46 55.00 +12 15 17.4 – V I52
2021-12-04 08:50:34 C 03 46 54.71 +12 15 21.3 – V I52
2021-12-06 06:25:22 C 03 33 12.75 +15 25 54.9 – o 291
2021-12-06 06:28:15 C 03 33 11.99 +15 26 05.0 – o 291
2021-12-06 06:31:07 C 03 33 11.22 +15 26 14.8 – o 291
2021-12-08 09:26:17 C 03 22 13.84 +17 55 09.0 – o 291
2021-12-08 09:36:12 C 03 22 11.99 +17 55 32.9 – o 291
2021-12-08 09:46:09 C 03 22 10.08 +17 55 56.6 – o 291
2021-12-09 06:57:42 C 03 18 37.49 +18 44 39.2 – o 691
2021-12-09 07:18:17 C 03 18 33.94 +18 45 22.5 – o 691
2021-12-09 07:38:52 C 03 18 30.60 +18 46 06.4 – o 691