2021 WM4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5151915000
Semi-major axis (a)1.4682393000 AU
Inclination (i)11.48016000°
Long. of Asc. Node (Ω)67.07884000°
Arg. of Perihelion (ω)279.57919000°
Mean Anomaly (M)112.81436000°
Mean Motion (n)0.5539988000°/day
Perihelion dist (q)0.71181490 AU
Aphelion dist (Q)2.22466370 AU
Orbital Period1.77907910 yr
Physical Parameters
H (abs. magnitude)27.65
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.750″
Uncertainty7
Orbit TypeApollo
MOID0.002308 AU
Observations Used29
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-12-02
Observations (29)
Date Type RA Dec Mag Band Observatory
2021-11-30 05:15:56 C 03 30 43.38 +30 03 26.2 V 703
2021-11-30 05:31:05 C 03 30 54.00 +30 09 42.8 V 703
2021-11-30 05:38:39 C 03 30 59.24 +30 12 48.0 V 703
2021-11-30 06:16:22 C 03 31 24.91 +30 27 54.9 V V06
2021-11-30 06:17:15 C 03 31 25.51 +30 28 15.7 V V06
2021-11-30 06:18:08 C 03 31 26.10 +30 28 36.5 V V06
2021-11-30 06:19:02 C 03 31 26.69 +30 28 57.3 V V06
2021-11-30 06:49:17 C 03 31 28.15 +30 39 12.9 Z W33
2021-11-30 07:06:57 C 03 31 40.46 +30 45 40.4 Z W33
2021-11-30 07:24:51 C 03 31 53.02 +30 52 04.6 Z W33
2021-11-30 07:54:10 C 03 32 28.41 +31 04 05.5 V V06
2021-11-30 07:55:03 C 03 32 28.92 +31 04 23.8 V V06
2021-11-30 07:55:56 C 03 32 29.48 +31 04 42.6 V V06
2021-11-30 07:56:49 C 03 32 30.04 +31 05 00.8 V V06
2021-11-30 19:06:09 C 03 40 07.92 +34 05 12.1 V 587
2021-11-30 19:06:41 C 03 40 08.14 +34 05 18.9 V 587
2021-11-30 19:07:13 C 03 40 08.35 +34 05 26.0 V 587
2021-11-30 19:51:50 C 03 40 30.31 +34 15 18.1 V B49
2021-11-30 19:52:17 C 03 40 30.50 +34 15 23.9 V B49
2021-11-30 19:52:59 C 03 40 30.74 +34 15 33.1 V B49
2021-11-30 20:04:34 C 03 40 35.24 +34 18 00.5 V B49
2021-11-30 20:39:30 C 03 40 42.60 +34 25 03.7 V L01
2021-11-30 20:41:45 C 03 40 43.46 +34 25 31.0 V L01
2021-11-30 20:43:59 C 03 40 44.23 +34 25 57.9 V L01
2021-11-30 20:46:13 C 03 40 45.07 +34 26 25.1 V L01
2021-11-30 21:21:39 C 03 41 01.38 +34 33 26.9 X C95
2021-11-30 22:13:21 C 03 41 19.06 +34 43 17.2 X C95
2021-12-02 04:39:20 C 03 50 20.49 +38 12 18.7 V I52
2021-12-02 04:44:49 C 03 50 21.11 +38 12 43.6 V I52