2021 WZ4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5956186498 ± 2.33e-04
Semi-major axis (a)1.9398664216 AU ± 9.74e-04
Inclination (i)0.90967771° ± 3.42e-04
Long. of Asc. Node (Ω)71.40255391° ± 3.35e-04
Arg. of Perihelion (ω)72.89606291° ± 1.51e-03
Mean Anomaly (M)149.67926830° ± 3.81e-01
Mean Motion (n)0.3647997548°/day ± 2.75e-04
Perihelion dist (q)0.78444580 AU ± 5.99e-04
Aphelion dist (Q)3.09528704 AU ± 1.62e-03
Orbital Period2.70182825 yr ± 2.03e-03
Physical Parameters
H (abs. magnitude)24.76
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.274″
Uncertainty3
Orbit TypeApollo
MOID0.002708 AU
Observations Used94
Oppositions1
Arc Total2021-2021
First Observation Used2021-11-29
Last Observation Used2021-12-13
Observations (97)
Date Type RA Dec Mag Band Observatory
2021-11-29 06:19:15 C 03 58 01.07 +19 45 34.1 V G96
2021-11-29 06:26:40 C 03 58 00.38 +19 45 34.1 V G96
2021-11-29 06:34:03 C 03 57 59.72 +19 45 34.1 V G96
2021-11-29 06:41:25 C 03 57 59.01 +19 45 34.1 V G96
2021-11-29 09:47:51 C 03 57 42.23 +19 45 28.3 V I52
2021-11-29 09:52:45 C 03 57 41.77 +19 45 27.3 V I52
2021-11-29 09:57:00 C 03 57 41.40 +19 45 26.8 V I52
2021-11-29 10:01:42 C 03 57 41.00 +19 45 26.9 V I52
2021-11-30 03:34:48 C 03 56 23.58 +19 45 21.5 u H21
2021-11-30 03:44:00 C 03 56 24.25 +19 45 25.5 V I52
2021-11-30 03:44:52 C 03 56 22.54 +19 45 21.5 u H21
2021-11-30 03:48:39 C 03 56 23.77 +19 45 26.1 V I52
2021-11-30 03:54:32 C 03 56 21.60 +19 45 22.4 u H21
2021-11-30 03:57:55 C 03 56 22.91 +19 45 26.6 V I52
2021-11-30 06:28:39 C 03 56 07.79 +19 45 31.6 V G96
2021-11-30 06:46:55 C 03 56 05.90 +19 45 31.8 V G96
2021-11-30 06:54:56 C 03 56 05.09 +19 45 31.5 V G96
2021-11-30 07:02:56 C 03 56 04.26 +19 45 31.2 V G96
2021-12-01 03:33:06 C 03 54 17.40 +19 45 17.3 u H21
2021-12-01 03:42:14 C 03 54 16.38 +19 45 17.6 u H21
2021-12-01 03:48:24 C 03 54 15.68 +19 45 17.8 u H21
2021-12-01 05:49:02 C 03 54 04.64 +19 45 20.0 V G58
2021-12-01 05:59:14 C 03 54 03.50 +19 45 18.5 V G58
2021-12-01 06:11:57 C 03 54 02.07 +19 45 19.1 V G58
2021-12-01 06:24:52 C 03 54 00.57 +19 45 21.8 V G58
2021-12-02 21:09:14 C 03 49 49.81 +19 44 49.1 V 033
2021-12-02 21:10:23 C 03 49 49.62 +19 44 49.0 V 033
2021-12-02 21:11:33 C 03 49 49.45 +19 44 49.1 V 033
2021-12-03 08:18:33 C 03 48 21.16 +19 45 07.9 V I52
2021-12-03 08:23:37 C 03 48 20.37 +19 45 07.9 V I52
2021-12-03 08:28:46 C 03 48 19.59 +19 45 07.5 V I52
2021-12-03 08:33:57 C 03 48 18.77 +19 45 06.7 V I52
2021-12-03 20:01:59 C 03 46 49.78 +19 44 32.1 V 033
2021-12-03 20:03:04 C 03 46 49.60 +19 44 32.1 V 033
2021-12-03 20:04:09 C 03 46 49.45 +19 44 32.0 V 033
2021-12-03 20:05:19 C 03 46 49.26 +19 44 32.1 V 033
2021-12-03 22:20:10 C 03 46 26.66 +19 44 37.8 V K88
2021-12-03 22:24:24 C 03 46 25.91 +19 44 37.3 V K88
2021-12-04 09:04:45 C 03 44 45.86 +19 44 46.0 V I52
2021-12-04 09:11:19 C 03 44 44.67 +19 44 45.0 V I52
2021-12-04 09:17:55 C 03 44 43.55 +19 44 44.3 V I52
2021-12-04 09:24:30 C 03 44 42.35 +19 44 43.3 V I52
2021-12-05 05:09:44 C 03 41 26.34 +19 44 28.1 V I52
2021-12-05 05:11:12 C 03 41 26.04 +19 44 28.0 V I52
2021-12-05 05:14:29 C 03 41 25.32 +19 44 28.0 V I52
2021-12-05 05:17:29 C 03 41 24.67 +19 44 27.9 V I52
2021-12-05 07:08:06 C 03 41 01.85 +19 44 17.3 V U68
2021-12-05 07:12:55 C 03 41 00.78 +19 44 16.8 V U68
2021-12-05 07:41:05 C 03 40 54.72 +19 44 15.2 V U68
2021-12-05 07:45:54 C 03 40 53.68 +19 44 14.4 V U68