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
2011-11-15 19:17:10 C 00 59 26.67 +62 40 06.2 u 160
2011-11-15 19:21:12 C 00 59 26.36 +62 40 04.3 u 160
2011-11-16 02:54:40 C 00 58 52.954 +62 35 19.64 o C60
2011-11-16 02:55:49 C 00 58 52.831 +62 35 19.15 o C60
2011-11-16 02:56:58 C 00 58 52.828 +62 35 18.08 o C60
2011-11-16 02:58:07 C 00 58 52.702 +62 35 17.90 o C60
2011-11-16 02:59:16 C 00 58 52.600 +62 35 16.87 o C60
2011-11-16 03:00:25 C 00 58 52.548 +62 35 16.53 o C60
2011-11-16 03:01:35 C 00 58 52.379 +62 35 15.27 o C60
2011-11-16 03:02:44 C 00 58 52.326 +62 35 14.57 o C60
2011-11-16 03:03:53 C 00 58 52.288 +62 35 13.56 o C60
2011-11-16 03:05:02 C 00 58 52.238 +62 35 12.87 o C60
2011-11-16 03:06:11 C 00 58 52.042 +62 35 12.23 o C60
2011-11-16 03:07:20 C 00 58 52.053 +62 35 11.12 o C60
2011-11-16 03:10:15 C 00 58 51.881 +62 35 09.54 o C60
2011-11-16 03:11:24 C 00 58 51.755 +62 35 08.87 o C60
2011-11-16 03:12:33 C 00 58 51.705 +62 35 07.96 o C60
2011-11-16 03:13:43 C 00 58 51.620 +62 35 07.40 o C60
2011-11-16 03:14:52 C 00 58 51.550 +62 35 06.70 o C60
2011-11-16 03:16:01 C 00 58 51.495 +62 35 05.89 o C60
2011-11-16 03:17:10 C 00 58 51.418 +62 35 05.29 o C60
2011-11-16 03:18:19 C 00 58 51.258 +62 35 04.50 o C60
2011-11-17 19:27:18 C 00 56 13.60 +62 09 10.0 u 160
2011-11-17 19:31:21 C 00 56 13.33 +62 09 06.9 u 160
2011-11-17 19:35:21 C 00 56 13.05 +62 09 04.2 u 160
2011-11-17 19:39:27 C 00 56 12.81 +62 09 01.5 a 233
2011-11-17 19:50:26 C 00 56 12.05 +62 08 54.1 a 233
2011-11-17 20:05:59 C 00 56 11.01 +62 08 43.8 a 233
2011-11-19 19:22:18 C 00 53 24.09 +61 34 29.7 u 160
2011-11-19 19:26:22 C 00 53 23.84 +61 34 26.6 u 160
2011-11-19 19:30:25 C 00 53 23.58 +61 34 23.5 u 160
2011-11-24 18:29:17 C 00 48 10.99 +59 52 01.2 16.5 o C60
2011-11-24 18:30:56 C 00 48 10.92 +59 51 59.2 16.8 o C60
2011-11-24 18:32:36 C 00 48 10.86 +59 51 57.6 16.9 o C60
2011-11-24 18:34:14 C 00 48 10.82 +59 51 56.4 16.6 o C60
2011-11-24 18:35:53 C 00 48 10.74 +59 51 54.8 16.7 o C60
2011-11-24 18:37:57 C 00 48 10.62 +59 51 52.8 16.8 o C60
2011-11-24 18:39:36 C 00 48 10.62 +59 51 51.2 16.7 o C60
2011-11-27 17:08:51 C 00 46 23.53 +58 40 47.9 u C73
2011-11-27 17:10:24 C 00 46 23.47 +58 40 45.6 u C73
2011-11-27 17:11:40 C 00 46 23.45 +58 40 45.1 u C73
2011-11-27 17:12:58 C 00 46 23.42 +58 40 43.5 u C73
2011-11-27 17:14:19 C 00 46 23.44 +58 40 42.0 u C73
2011-11-27 17:15:31 C 00 46 23.46 +58 40 41.0 u C73
2011-11-27 17:16:47 C 00 46 23.36 +58 40 39.4 u C73
2011-11-27 17:18:03 C 00 46 23.32 +58 40 38.3 u C73
2011-11-27 17:19:19 C 00 46 23.41 +58 40 37.1 u C73
2011-11-27 17:20:32 C 00 46 23.30 +58 40 35.8 u C73
2011-11-27 17:21:46 C 00 46 23.19 +58 40 34.1 u C73
2011-11-27 17:23:13 C 00 46 23.16 +58 40 32.7 u C73