2021 XN4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2531339040 ± 1.33e-07
Semi-major axis (a)1.3055191387 AU ± 2.06e-09
Inclination (i)23.37101200° ± 1.91e-05
Long. of Asc. Node (Ω)256.72498700° ± 2.63e-06
Arg. of Perihelion (ω)142.65550015° ± 7.54e-05
Mean Anomaly (M)252.87371479° ± 4.11e-05
Mean Motion (n)0.6607503652°/day ± 1.56e-09
Perihelion dist (q)0.97504798 AU ± 1.73e-07
Aphelion dist (Q)1.63599029 AU ± 1.73e-07
Orbital Period1.49167724 yr ± 3.53e-09
Physical Parameters
H (abs. magnitude)23.84
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.303″
Uncertainty0
Orbit TypeApollo
MOID0.029723 AU
Observations Used59
Oppositions1
Arc Total2021-2024
First Observation Used2021-12-08
Last Observation Used2024-12-08
Observations (63)
Date Type RA Dec Mag Band Observatory
2021-12-08 02:35:30 C 23 34 37.71 +26 59 12.0 V G96
2021-12-08 02:43:48 C 23 34 45.37 +26 57 42.6 V G96
2021-12-08 02:52:04 C 23 34 53.03 +26 56 13.4 V G96
2021-12-08 03:00:20 C 23 35 00.64 +26 54 44.1 V G96
2021-12-08 04:10:05 C 23 36 05.12 +26 42 06.1 V I52
2021-12-08 04:11:11 C 23 36 06.16 +26 41 53.9 V I52
2021-12-08 04:12:18 C 23 36 07.18 +26 41 41.9 V I52
2021-12-08 05:04:44 C 23 36 55.93 +26 32 06.4 V I52
2021-12-08 05:06:58 C 23 36 58.00 +26 31 41.8 V I52
2021-12-08 05:09:12 C 23 37 00.08 +26 31 17.3 V I52
2021-12-08 05:56:23 C 23 37 44.12 +26 22 30.1 V H01
2021-12-08 06:13:09 C 23 37 59.89 +26 19 24.4 V H01
2021-12-08 06:38:06 C 23 38 23.44 +26 14 46.9 V H01
2021-12-08 06:44:34 C 23 38 29.56 +26 13 34.9 V H01
2021-12-08 23:33:36 C 23 54 35.92 +23 03 35.3 u H21
2021-12-08 23:39:09 C 23 54 40.97 +23 02 30.8 u H21
2021-12-08 23:41:56 C 23 54 43.49 +23 01 58.2 u H21
2021-12-08 23:45:16 C 23 54 46.51 +23 01 19.3 u H21
2021-12-09 02:34:29 C 23 57 22.71 +22 28 30.3 V G96
2021-12-09 02:39:48 C 23 57 27.51 +22 27 27.4 V I52
2021-12-09 02:40:57 C 23 57 28.54 +22 27 14.0 V I52
2021-12-09 02:42:06 C 23 57 29.57 +22 27 00.3 V I52
2021-12-09 02:42:45 C 23 57 30.23 +22 26 51.7 V G96
2021-12-09 02:43:15 C 23 57 30.63 +22 26 46.5 V I52
2021-12-09 02:49:10 C 23 57 32.53 +22 25 21.7 Z W33
2021-12-09 02:51:02 C 23 57 37.67 +22 25 14.7 V G96
2021-12-09 02:58:12 C 23 57 40.74 +22 23 33.6 Z W33
2021-12-09 03:07:09 C 23 57 48.82 +22 21 46.9 Z W33
2021-12-09 15:23:17 S 00 09 15.386 +19 54 57.53 L C51
2021-12-10 05:28:58 S 00 22 02.938 +17 01 08.22 L C51
2021-12-12 01:12:34 C 00 59 09.34 +07 56 49.8 u 807
2021-12-12 01:18:12 C 00 59 13.70 +07 55 40.9 u 807
2021-12-12 01:23:49 C 00 59 17.98 +07 54 32.6 u 807
2021-12-12 01:48:38 C 00 59 42.20 +07 47 14.9 V I52
2021-12-12 01:49:06 C 00 59 42.54 +07 47 08.3 V I52
2021-12-12 01:49:35 C 00 59 42.92 +07 47 03.0 V I52
2021-12-12 01:50:03 C 00 59 43.26 +07 46 57.4 V I52
2021-12-25 10:49:13 C 03 29 00.51 -26 07 27.8 V 474
2021-12-25 10:54:21 C 03 29 01.60 -26 07 37.8 V 474
2021-12-25 10:59:28 C 03 29 02.83 -26 07 48.7 V 474
2021-12-25 11:04:35 C 03 29 03.94 -26 08 00.1 V 474
2021-12-27 04:39:31 C 03 38 32.97 -27 30 45.6 V 291
2021-12-27 04:58:47 C 03 38 36.78 -27 31 18.9 V 291
2021-12-27 05:18:05 C 03 38 40.59 -27 31 52.6 V 291
2024-12-01 15:27:44 C 10 27 40.426 +57 35 57.60 V F52
2024-12-01 15:31:19 C 10 27 35.037 +57 35 18.65 V F52
2024-12-04 09:26:08 C 09 05 59.464 +40 39 34.42 V 703
2024-12-04 09:29:25 C 09 05 55.871 +40 38 31.70 V 703
2024-12-04 09:32:42 C 09 05 52.426 +40 37 27.01 V 703
2024-12-04 10:27:12 C 09 04 53.065 +40 19 49.04 V I52