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
2021-12-06 07:42:17 C 05 11 21.70 -19 01 55.7 V G96
2021-12-06 07:49:41 C 05 11 20.30 -19 01 19.6 V G96
2021-12-08 03:32:06 C 05 03 44.00 -15 32 42.8 V W94
2021-12-08 03:40:26 C 05 03 42.52 -15 32 04.5 V W94
2021-12-08 03:48:42 C 05 03 41.10 -15 31 26.3 V W94
2021-12-09 07:13:30 C 04 59 18.39 -13 26 43.3 V I52
2021-12-09 07:14:46 C 04 59 18.22 -13 26 37.1 V I52
2021-12-09 07:16:02 C 04 59 18.00 -13 26 31.5 V I52
2021-12-09 07:17:18 C 04 59 17.79 -13 26 25.7 V I52
2021-12-09 07:19:30 C 04 59 17.44 -13 26 15.9 V 703
2021-12-09 07:27:03 C 04 59 16.29 -13 25 42.3 V 703
2021-12-09 07:34:36 C 04 59 15.05 -13 25 08.1 V 703
2021-12-09 07:42:09 C 04 59 13.77 -13 24 34.7 V 703
2021-12-12 06:37:49 C 04 49 13.38 -08 22 38.7 V I52
2021-12-12 06:41:09 C 04 49 12.92 -08 22 25.8 V I52
2021-12-12 06:44:00 C 04 49 12.60 -08 22 13.7 V I52
2021-12-12 06:46:46 C 04 49 12.27 -08 22 03.5 V I52
2021-12-14 01:30:25 C 04 44 00.01 -05 35 27.8 V W94
2021-12-14 01:38:44 C 04 43 59.05 -05 34 57.1 V W94
2021-12-14 01:47:04 C 04 43 58.05 -05 34 25.5 V W94
2021-12-15 04:56:19 C 04 40 55.45 -03 54 56.6 u 807
2021-12-15 05:00:16 C 04 40 55.01 -03 54 42.5 u 807
2021-12-15 05:04:13 C 04 40 54.57 -03 54 28.3 u 807
2021-12-21 07:05:08 C 04 27 57.72 +03 43 06.5 V I52
2021-12-21 07:10:32 C 04 27 57.35 +03 43 19.8 V I52
2021-12-21 07:13:14 C 04 27 57.10 +03 43 27.1 V I52
2022-01-01 02:43:05 C 04 15 28.70 +13 02 32.1 u 807
2022-01-01 02:49:07 C 04 15 28.51 +13 02 42.4 u 807
2022-01-01 02:55:12 C 04 15 28.31 +13 02 52.6 u 807
2022-01-01 14:07:26 C 04 15 10.21 +13 21 14.5 V D29
2022-01-01 14:48:10 C 04 15 09.00 +13 22 20.8 V D29
2022-01-01 15:28:53 C 04 15 07.75 +13 23 28.1 V D29
2022-01-02 03:06:29 C 04 14 50.27 +13 42 34.3 u 807
2022-01-02 03:12:27 C 04 14 50.11 +13 42 44.1 u 807
2022-01-02 03:18:20 C 04 14 49.94 +13 42 53.5 u 807
2022-01-06 04:53:52 C 04 13 01.61 +16 06 48.1 V G96
2022-01-06 05:02:07 C 04 13 01.50 +16 06 59.3 V G96
2022-01-06 05:10:21 C 04 13 01.35 +16 07 10.2 V G96
2022-01-06 05:12:59 C 04 13 01.928 +16 07 16.10 U F52
2022-01-06 05:18:34 C 04 13 01.24 +16 07 21.4 V G96
2022-01-06 05:47:39 C 04 13 01.370 +16 08 03.33 U F52
2022-01-10 08:31:08 C 04 12 16.02 +18 11 27.2 V I52
2022-01-10 08:45:23 C 04 12 16.05 +18 11 42.2 V I52
2022-01-26 00:46:47 C 04 16 57.40 +23 44 14.1 u H21
2022-01-26 00:58:15 C 04 16 57.66 +23 44 21.7 u H21
2022-01-26 01:14:07 C 04 16 58.03 +23 44 32.4 u H21
2022-01-26 05:00:27 C 04 17 03.41 +23 47 06.3 o 291
2022-01-26 05:16:37 C 04 17 03.80 +23 47 16.8 o 291
2022-01-27 02:07:47 C 04 17 36.26 +24 01 06.1 u H21
2022-01-27 02:21:32 C 04 17 36.62 +24 01 15.2 u H21