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
2003-11-24 03:53:19 C 02 57 06.31 +42 28 54.6 17.7 c 704
2003-11-24 04:04:41 C 02 56 49.23 +42 30 52.7 17.8 c 704
2003-11-24 04:16:03 C 02 56 32.08 +42 32 51.2 18.0 c 704
2003-11-24 19:21:49 C 02 32 39.38 +45 02 42.4 r J95
2003-11-24 19:30:10 C 02 32 25.12 +45 04 03.9 r J95
2003-11-24 19:38:41 C 02 32 10.48 +45 05 26.2 r J95
2003-11-25 22:06:08 C 01 42 06.81 +48 48 15.3 r 213
2003-11-25 22:06:30 C 01 42 06.01 +48 48 18.0 r 213
2003-11-25 22:08:43 C 01 42 01.31 +48 48 33.3 r 213
2003-11-26 21:51:38 C 00 50 18.20 +50 51 50.5 r J95
2003-11-26 21:59:38 C 00 49 59.80 +50 52 16.1 r J95
2003-11-26 22:08:01 C 00 49 40.58 +50 52 43.0 r J95
2003-11-27 20:56:39 C 23 58 01.03 +51 24 12.4 o J95
2003-11-27 21:05:48 C 23 57 40.35 +51 24 07.5 o J95
2003-11-27 21:14:58 C 23 57 19.59 +51 24 01.3 o J95
2003-11-28 21:21:49 C 23 06 15.14 +50 29 17.4 r 176
2003-11-28 21:22:21 C 23 06 14.07 +50 29 15.3 r 176
2003-11-28 21:22:52 C 23 06 13.03 +50 29 13.3 r 176
2003-11-28 21:23:26 C 23 06 11.91 +50 29 11.1 r 176
2003-11-28 21:24:00 C 23 06 10.78 +50 29 08.9 r 176
2016-11-11 10:59:25 C 05 14 01.35 +10 05 31.8 q G96
2016-11-11 11:05:33 C 05 14 00.21 +10 05 47.2 q G96
2016-11-11 11:11:49 C 05 13 59.07 +10 06 02.8 q G96
2016-11-11 11:17:58 C 05 13 57.94 +10 06 18.6 q G96
2016-11-11 11:44:42 C 05 13 53.08 +10 07 25.6 q G96
2016-11-11 11:47:38 C 05 13 52.56 +10 07 33.0 q G96
2016-11-11 11:49:50 C 05 13 52.15 +10 07 38.7 q G96
2016-11-11 11:51:49 C 05 13 51.79 +10 07 43.7 q G96
2016-11-11 12:49:25 C 05 13 41.36 +10 10 09.6 o 291
2016-11-11 12:50:40 C 05 13 41.14 +10 10 12.7 o 291
2016-11-11 12:51:56 C 05 13 40.90 +10 10 15.9 o 291
2016-11-12 11:18:49 C 05 09 31.66 +11 10 55.1 o 291
2016-11-12 11:21:19 C 05 09 31.14 +11 11 02.1 o 291
2016-11-12 11:23:51 C 05 09 30.61 +11 11 09.3 o 291
2016-11-18 23:04:24 C 04 16 26.19 +22 35 32.2 q Z80
2016-11-18 23:12:45 C 04 16 21.36 +22 36 25.0 q Z80
2016-11-18 23:21:05 C 04 16 16.59 +22 37 19.0 q Z80
2016-11-19 06:54:24 C 04 11 53.28 +23 27 08.2 q G96
2016-11-19 07:07:45 C 04 11 45.01 +23 28 37.4 q G96
2016-11-19 07:22:13 C 04 11 36.03 +23 30 13.9 q G96
2016-11-19 07:36:19 C 04 11 27.27 +23 31 48.1 q G96
2016-11-20 18:11:23 C 03 47 35.70 +27 40 29.5 L04
2016-11-20 18:18:17 C 03 47 30.15 +27 41 23.5 L04
2016-11-20 18:26:22 C 03 47 23.65 +27 42 26.9 L04
2016-11-20 20:19:06 C 03 45 52.35 +27 57 03.5 q 246
2016-11-20 20:19:29 C 03 45 52.04 +27 57 06.6 q 246
2016-11-20 20:19:38 C 03 45 51.90 +27 57 07.6 q 246
2016-11-20 20:19:47 C 03 45 51.78 +27 57 08.9 q 246
2016-11-20 20:19:56 C 03 45 51.68 +27 57 09.9 q 246
2016-11-20 20:20:05 C 03 45 51.54 +27 57 11.1 q 246