2021 WC8

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7006930520 ± 2.67e-08
Semi-major axis (a)2.6170587022 AU ± 9.83e-09
Inclination (i)17.71858006° ± 8.12e-06
Long. of Asc. Node (Ω)318.53060647° ± 6.25e-06
Arg. of Perihelion (ω)241.15846539° ± 1.23e-05
Mean Anomaly (M)311.64109446° ± 1.69e-06
Mean Motion (n)0.2328048801°/day ± 1.31e-09
Perihelion dist (q)0.78330385 AU ± 7.00e-08
Aphelion dist (Q)4.45081355 AU ± 7.19e-08
Orbital Period4.23370113 yr ± 2.39e-08
Physical Parameters
H (abs. magnitude)19.81
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.301″
Uncertainty0
Orbit TypeApollo
MOID0.005011 AU
Observations Used227
Oppositions17
Arc Total2000-2022
First Observation Used2000-11-26
Last Observation Used2022-07-26
Observations (236)
Date Type RA Dec Mag Band Observatory
2022-01-25 09:53:28 C 06 19 09.71 +52 10 04.9 V T05
2022-01-25 10:04:03 C 06 19 06.46 +52 09 54.6 V T05
2022-01-25 10:18:41 C 06 19 01.99 +52 09 40.2 V T05
2022-01-26 03:56:15 C 06 13 51.90 +51 52 04.6 V 703
2022-01-26 04:04:02 C 06 13 49.39 +51 51 56.6 V 703
2022-01-26 04:11:47 C 06 13 47.07 +51 51 48.8 V 703
2022-01-26 04:19:33 C 06 13 44.64 +51 51 41.1 V 703
2022-01-26 09:40:21 C 06 12 06.24 +51 46 00.9 V T05
2022-01-26 09:45:01 C 06 12 04.76 +51 45 55.6 V T05
2022-01-26 09:54:55 C 06 12 01.69 +51 45 44.4 V T05
2022-01-26 10:09:30 C 06 11 57.03 +51 45 28.1 V T05
2022-01-29 07:33:10 C 05 50 04.24 +50 10 24.8 V 703
2022-01-29 07:40:26 C 05 50 01.75 +50 10 12.3 V 703
2022-01-29 07:43:36 C 05 50 03.00 +50 10 21.0 V T05
2022-01-29 07:54:58 C 05 49 56.93 +50 09 47.3 V 703
2022-01-29 08:31:06 C 05 49 46.67 +50 09 01.3 V T05
2022-01-29 08:35:43 C 05 49 45.08 +50 08 53.4 V T05
2022-01-29 08:45:37 C 05 49 41.69 +50 08 36.7 V T05
2022-02-01 00:23:37 C 05 28 12.40 +48 02 05.1 V W46
2022-02-01 00:31:57 C 05 28 09.41 +48 01 46.7 V W46
2022-02-01 00:41:43 C 05 28 05.85 +48 01 24.0 V W46
2022-02-02 18:04:51 C 05 13 29.52 +46 14 43.6 V G01
2022-02-02 19:42:56 C 05 12 53.42 +46 10 06.2 V G01
2022-02-03 06:54:48 C 05 08 51.61 +45 37 47.4 V T08
2022-02-03 07:07:27 C 05 08 46.90 +45 37 08.5 V T08
2022-02-03 07:22:04 C 05 08 41.37 +45 36 24.9 V T08
2022-02-03 07:24:47 C 05 08 40.33 +45 36 16.2 V T08
2022-02-03 07:39:26 C 05 08 34.80 +45 35 32.3 V T08
2022-02-03 08:52:47 C 05 08 07.34 +45 31 45.5 V T05
2022-02-03 09:01:21 C 05 08 04.05 +45 31 19.7 V T05
2022-02-03 09:08:00 C 05 08 01.54 +45 30 58.7 V T05
2022-02-03 09:15:55 C 05 07 58.57 +45 30 34.2 V T05
2022-02-03 09:16:34 C 05 07 58.35 +45 30 32.3 V T05
2022-02-04 07:03:29 C 05 00 06.03 +44 21 22.9 V T05
2022-02-04 07:07:28 C 05 00 04.50 +44 21 09.3 V T05
2022-02-04 07:18:02 C 05 00 00.49 +44 20 34.0 V T05
2022-02-04 07:37:53 C 04 59 52.93 +44 19 26.9 V T05
2022-02-06 06:31:07 C 04 42 37.39 +41 26 14.1 V T08
2022-02-06 06:45:14 C 04 42 31.90 +41 25 16.7 V T08
2022-02-06 06:49:17 C 04 42 30.27 +41 25 00.1 V T08
2022-02-06 06:53:56 C 04 42 28.49 +41 24 41.1 V T08
2022-02-06 07:06:47 C 04 42 23.52 +41 23 48.0 V T08
2022-02-06 07:18:44 C 04 42 18.87 +41 22 58.9 V T08
2022-02-07 02:02:02 C 04 35 21.29 +40 03 30.6 u H21
2022-02-07 02:04:33 C 04 35 20.32 +40 03 19.6 u H21
2022-02-07 02:07:20 C 04 35 19.23 +40 03 07.2 u H21
2022-02-07 02:10:30 C 04 35 18.01 +40 02 53.1 u H21
2022-02-07 06:35:23 C 04 33 39.02 +39 43 36.4 V T05
2022-02-07 06:47:15 C 04 33 34.38 +39 42 43.2 V T05
2022-02-07 06:56:15 C 04 33 30.84 +39 42 02.3 V T05