2021 WM

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6764686421 ± 3.61e-08
Semi-major axis (a)2.0399323482 AU ± 4.06e-08
Inclination (i)28.61528185° ± 1.12e-05
Long. of Asc. Node (Ω)92.72581824° ± 1.04e-05
Arg. of Perihelion (ω)239.79491233° ± 1.47e-05
Mean Anomaly (M)151.94940933° ± 1.61e-05
Mean Motion (n)0.3382895863°/day ± 1.01e-08
Perihelion dist (q)0.65998208 AU ± 7.48e-08
Aphelion dist (Q)3.41988261 AU ± 1.00e-07
Orbital Period2.91355786 yr ± 8.71e-08
Physical Parameters
H (abs. magnitude)19.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.262″
Uncertainty0
Orbit TypeApollo
MOID0.140872 AU
Observations Used130
Oppositions2
Arc Total2021-2024
First Observation Used2021-11-22
Last Observation Used2024-12-21
Observations (135)
Date Type RA Dec Mag Band Observatory
2021-11-22 11:59:05 C 06 43 05.402 -46 50 11.35 U F51
2021-11-22 12:24:44 C 06 42 55.130 -46 48 18.55 U F51
2021-11-22 12:37:33 C 06 42 50.008 -46 47 22.16 U F51
2021-11-23 12:36:17 C 06 33 43.846 -44 58 59.08 V F51
2021-11-23 12:37:13 C 06 33 43.502 -44 58 54.94 V F51
2021-11-24 04:43:31 C 06 27 52.94 -43 43 20.8 u 807
2021-11-24 04:49:00 C 06 27 50.94 -43 42 54.9 u 807
2021-11-24 04:54:33 C 06 27 48.95 -43 42 29.2 u 807
2021-11-25 01:57:30 C 06 20 27.77 -42 01 37.6 X Y00
2021-11-25 02:06:52 C 06 20 24.48 -42 00 52.6 X Y00
2021-11-25 02:15:58 C 06 20 21.30 -42 00 08.7 X Y00
2021-11-25 05:22:54 C 06 19 16.74 -41 44 57.5 u 807
2021-11-25 05:28:37 C 06 19 14.72 -41 44 29.8 u 807
2021-11-25 05:34:15 C 06 19 12.78 -41 44 02.4 u 807
2021-11-25 12:43:16 C 06 16 48.36 -41 08 56.1 q E94
2021-11-25 13:05:01 C 06 16 40.87 -41 07 10.2 q E94
2021-11-25 13:47:58 C 06 16 26.08 -41 03 38.6 q E94
2021-11-27 06:31:09 C 06 03 27.01 -37 39 16.5 u 807
2021-11-27 06:35:37 C 06 03 25.59 -37 38 53.8 u 807
2021-11-27 06:40:03 C 06 03 24.19 -37 38 31.1 u 807
2021-11-30 04:42:41 C 05 43 41.17 -31 34 44.1 u 807
2021-11-30 04:47:07 C 05 43 39.97 -31 34 21.0 u 807
2021-11-30 04:51:35 C 05 43 38.77 -31 33 57.8 u 807
2021-12-01 07:20:37 C 05 36 58.34 -29 15 33.4 V I52
2021-12-01 07:23:49 C 05 36 57.63 -29 15 16.1 V I52
2021-12-01 07:24:03 C 05 36 57.60 -29 15 14.6 V I52
2021-12-02 06:57:52 C 05 31 21.71 -27 12 08.0 V I52
2021-12-02 06:58:07 C 05 31 21.67 -27 12 07.0 V I52
2021-12-02 07:01:00 C 05 31 20.96 -27 11 51.5 V I52
2021-12-02 07:01:15 C 05 31 20.91 -27 11 49.7 V I52
2021-12-03 05:09:24 C 05 26 21.25 -25 16 41.6 V W94
2021-12-03 05:17:51 C 05 26 19.31 -25 15 57.3 V W94
2021-12-03 05:26:10 C 05 26 17.44 -25 15 14.2 V W94
2021-12-03 11:33:53 C 05 24 57.23 -24 44 00.7 V T08
2021-12-03 11:39:16 C 05 24 56.01 -24 43 32.3 V T08
2021-12-03 11:47:14 C 05 24 54.20 -24 42 51.5 V T08
2021-12-03 12:37:45 C 05 24 42.93 -24 38 30.7 V T08
2021-12-05 06:57:51 C 05 16 03.01 -21 04 00.3 V I52
2021-12-05 07:00:32 C 05 16 02.48 -21 03 46.8 V I52
2021-12-05 07:00:47 C 05 16 02.42 -21 03 45.7 V I52
2021-12-05 07:03:30 C 05 16 01.89 -21 03 32.1 V I52
2021-12-05 07:37:34 C 05 15 54.98 -21 00 42.5 V 703
2021-12-05 07:52:48 C 05 15 52.04 -20 59 27.1 V 703
2021-12-05 08:00:25 C 05 15 50.69 -20 58 49.4 V 703
2021-12-06 05:09:08 C 05 11 50.95 -19 14 22.2 V I52
2021-12-06 05:10:22 C 05 11 50.72 -19 14 16.2 V I52
2021-12-06 05:12:22 C 05 11 50.36 -19 14 06.3 V I52
2021-12-06 05:13:36 C 05 11 50.11 -19 14 00.3 V I52
2021-12-06 07:27:31 C 05 11 24.52 -19 03 07.8 V G96
2021-12-06 07:34:54 C 05 11 23.12 -19 02 31.8 V G96