209924 (2005 WS55)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4534675454 ± 1.91e-08
Semi-major axis (a)2.0295309131 AU ± 4.25e-09
Inclination (i)23.76631359° ± 2.80e-06
Long. of Asc. Node (Ω)283.54353999° ± 4.74e-06
Arg. of Perihelion (ω)203.35135816° ± 6.20e-06
Mean Anomaly (M)272.76283895° ± 5.21e-06
Mean Motion (n)0.3408935390°/day ± 1.07e-09
Perihelion dist (q)1.10920451 AU ± 3.88e-08
Aphelion dist (Q)2.94985731 AU ± 3.92e-08
Orbital Period2.89130233 yr ± 9.08e-09
Physical Parameters
H (abs. magnitude)16.29
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.324″
Uncertainty0
Orbit TypeAmor
MOID0.148029 AU
Observations Used1135
Oppositions15
Arc Total2002-2025
First Observation Used2002-07-26
Last Observation Used2025-10-22
Observations (1160)
Date Type RA Dec Mag Band Observatory
2012-03-23 23:23:10 C 06 10 33.43 -16 25 03.5 L Y28
2012-03-23 23:24:13 C 06 10 33.58 -16 25 04.3 L Y28
2012-03-23 23:25:16 C 06 10 33.73 -16 25 05.1 L Y28
2012-03-23 23:26:19 C 06 10 33.88 -16 25 05.9 L Y28
2012-03-23 23:27:23 C 06 10 34.03 -16 25 06.6 L Y28
2012-03-23 23:28:26 C 06 10 34.21 -16 25 07.1 L Y28
2012-03-23 23:29:29 C 06 10 34.31 -16 25 07.6 L Y28
2012-03-23 23:30:32 C 06 10 34.47 -16 25 08.9 L Y28
2012-03-23 23:31:35 C 06 10 34.63 -16 25 09.8 L Y28
2012-03-23 23:32:38 C 06 10 34.78 -16 25 10.5 L Y28
2012-03-23 23:33:40 C 06 10 34.92 -16 25 11.3 L Y28
2012-03-23 23:34:43 C 06 10 35.07 -16 25 12.1 L Y28
2012-03-23 23:35:46 C 06 10 35.22 -16 25 12.9 L Y28
2012-03-23 23:36:49 C 06 10 35.37 -16 25 13.7 L Y28
2012-03-23 23:37:52 C 06 10 35.52 -16 25 14.5 L Y28
2012-03-23 23:38:55 C 06 10 35.66 -16 25 15.3 L Y28
2012-03-23 23:39:58 C 06 10 35.82 -16 25 15.9 L Y28
2012-03-23 23:41:01 C 06 10 35.97 -16 25 16.7 L Y28
2012-03-23 23:42:04 C 06 10 36.12 -16 25 17.5 L Y28
2012-03-23 23:43:07 C 06 10 36.27 -16 25 18.3 L Y28
2012-03-23 23:44:09 C 06 10 36.42 -16 25 19.2 L Y28
2012-03-23 23:45:11 C 06 10 36.57 -16 25 19.8 L Y28
2012-03-23 23:46:14 C 06 10 36.71 -16 25 20.7 L Y28
2012-03-23 23:47:17 C 06 10 36.87 -16 25 21.4 L Y28
2012-03-23 23:48:21 C 06 10 37.02 -16 25 22.2 L Y28
2012-03-23 23:49:24 C 06 10 37.16 -16 25 22.9 L Y28
2012-03-23 23:50:27 C 06 10 37.31 -16 25 23.8 L Y28
2012-03-23 23:51:29 C 06 10 37.46 -16 25 24.5 L Y28
2012-03-23 23:52:31 C 06 10 37.61 -16 25 25.3 L Y28
2012-03-23 23:53:34 C 06 10 37.76 -16 25 26.1 L Y28
2012-03-23 23:54:37 C 06 10 37.91 -16 25 26.8 L Y28
2012-03-23 23:55:40 C 06 10 38.06 -16 25 27.6 L Y28
2012-03-23 23:56:43 C 06 10 38.20 -16 25 28.4 L Y28
2012-03-23 23:57:46 C 06 10 38.38 -16 25 29.1 L Y28
2012-03-23 23:58:49 C 06 10 38.51 -16 25 29.8 L Y28
2012-03-23 23:59:52 C 06 10 38.64 -16 25 30.4 L Y28
2012-03-24 00:00:56 C 06 10 38.81 -16 25 31.4 L Y28
2012-03-24 00:01:59 C 06 10 38.96 -16 25 32.2 L Y28
2012-03-24 00:03:00 C 06 10 39.11 -16 25 33.0 L Y28
2012-03-24 00:04:03 C 06 10 39.25 -16 25 33.8 L Y28
2012-03-24 00:05:06 C 06 10 39.41 -16 25 34.6 L Y28
2012-03-24 00:06:09 C 06 10 39.54 -16 25 35.3 L Y28
2012-03-24 00:07:12 C 06 10 39.70 -16 25 36.1 L Y28
2012-03-24 00:08:15 C 06 10 39.86 -16 25 36.9 L Y28
2012-03-24 00:09:19 C 06 10 40.00 -16 25 37.7 L Y28
2012-03-24 00:10:21 C 06 10 40.15 -16 25 38.4 L Y28
2012-03-24 00:11:24 C 06 10 40.30 -16 25 39.2 L Y28
2012-03-24 00:12:27 C 06 10 40.45 -16 25 40.0 L Y28
2012-03-24 00:13:29 C 06 10 40.60 -16 25 40.8 L Y28
2012-03-24 00:19:24 C 06 10 41.45 -16 25 45.2 L Y28