2003 WU21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5448479594 ± 1.95e-07
Semi-major axis (a)0.9091756950 AU ± 2.76e-10
Inclination (i)28.60007978° ± 2.07e-05
Long. of Asc. Node (Ω)57.51626569° ± 1.90e-06
Arg. of Perihelion (ω)140.69932593° ± 7.88e-06
Mean Anomaly (M)55.31859337° ± 1.79e-05
Mean Motion (n)1.1369478647°/day ± 5.17e-10
Perihelion dist (q)0.41381317 AU ± 1.77e-07
Aphelion dist (Q)1.40453822 AU ± 1.77e-07
Orbital Period0.86690544 yr ± 3.94e-10
Physical Parameters
H (abs. magnitude)21.87
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.279″
Uncertainty0
Orbit TypeAten
MOID0.069412 AU
Observations Used135
Oppositions3
Arc Total2003-2022
First Observation Used2003-11-20
Last Observation Used2022-11-23
Observations (138)
Date Type RA Dec Mag Band Observatory
2016-11-20 20:20:14 C 03 45 51.42 +27 57 12.2 q 246
2016-11-20 20:20:23 C 03 45 51.30 +27 57 13.4 q 246
2016-11-22 02:59:54 C 03 17 47.25 +32 05 52.7 q W25
2016-11-22 03:00:30 C 03 17 46.67 +32 05 56.7 q W25
2016-11-22 03:01:04 C 03 17 46.02 +32 06 02.1 q W25
2016-11-22 03:01:40 C 03 17 45.41 +32 06 07.3 q W25
2016-11-22 03:02:14 C 03 17 44.81 +32 06 12.0 q W25
2016-11-22 21:37:24 C 02 56 59.52 +34 41 56.9 q 246
2016-11-22 21:37:48 C 02 56 59.03 +34 42 00.3 q 246
2016-11-22 21:37:57 C 02 56 58.84 +34 42 01.5 q 246
2016-11-22 21:38:05 C 02 56 58.66 +34 42 02.9 q 246
2016-11-22 21:38:14 C 02 56 58.48 +34 42 04.2 q 246
2016-11-22 21:38:23 C 02 56 58.31 +34 42 05.4 q 246
2016-11-22 21:38:32 C 02 56 58.12 +34 42 06.6 q 246
2016-11-22 21:38:41 C 02 56 57.94 +34 42 07.8 q 246
2016-11-22 21:38:50 C 02 56 57.75 +34 42 08.9 q 246
2016-11-23 00:02:10 C 02 54 09.03 +35 02 03.0 q I15
2016-11-23 00:04:45 C 02 54 05.85 +35 02 24.8 q I15
2016-11-23 00:07:20 C 02 54 02.63 +35 02 46.8 q I15
2016-11-23 01:42:09 C 02 52 05.49 +35 16 07.9 U W25
2016-11-23 02:13:56 C 02 51 25.44 +35 20 35.5 U W25
2016-11-27 01:20:21 C 00 16 49.50 +44 11 23.2 U 204
2016-11-27 01:24:06 C 00 16 42.67 +44 11 26.4 U 204
2016-11-27 01:27:52 C 00 16 35.83 +44 11 30.0 U 204
2016-11-27 01:31:37 C 00 16 29.03 +44 11 33.2 U 204
2016-11-27 01:35:23 C 00 16 22.18 +44 11 36.3 U 204
2022-11-16 04:27:32 C 01 33 49.87 -18 19 21.4 V 807
2022-11-16 04:40:52 C 01 33 46.53 -18 19 06.4 V 807
2022-11-16 04:54:12 C 01 33 43.18 -18 18 51.3 V 807
2022-11-16 05:39:06 C 01 33 32.84 -18 18 25.5 o 291
2022-11-16 05:46:05 C 01 33 31.08 -18 18 17.0 o 291
2022-11-16 05:53:05 C 01 33 29.35 -18 18 08.9 o 291
2022-11-17 07:54:29 C 01 27 09.571 -17 48 01.96 U F51
2022-11-17 08:10:34 C 01 27 05.618 -17 47 42.94 U F51
2022-11-17 08:26:41 C 01 27 01.643 -17 47 24.05 U F51
2022-11-23 05:31:56 C 00 54 59.803 -14 39 24.08 U F52
2022-11-23 05:48:21 C 00 54 56.238 -14 39 00.05 U F52
2022-11-23 06:04:48 C 00 54 52.687 -14 38 36.82 U F52