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
2011-11-27 17:25:48 C 00 46 23.22 +58 40 30.3 u C73
2011-11-27 17:27:16 C 00 46 23.09 +58 40 28.1 u C73
2011-11-27 17:28:34 C 00 46 23.03 +58 40 27.4 u C73
2011-11-27 17:29:49 C 00 46 23.12 +58 40 25.7 u C73
2011-11-27 17:31:06 C 00 46 23.02 +58 40 23.8 u C73
2011-11-27 17:32:21 C 00 46 22.95 +58 40 23.0 u C73
2011-11-27 17:33:40 C 00 46 22.96 +58 40 21.8 u C73
2011-11-27 17:35:02 C 00 46 22.89 +58 40 20.3 u C73
2011-11-27 17:36:22 C 00 46 22.87 +58 40 18.9 u C73
2011-11-27 17:37:39 C 00 46 22.87 +58 40 17.4 u C73
2011-11-27 17:38:53 C 00 46 22.79 +58 40 16.4 u C73
2011-11-27 17:40:07 C 00 46 22.79 +58 40 15.1 u C73
2011-11-27 17:41:23 C 00 46 22.73 +58 40 13.7 u C73
2011-11-27 17:42:49 C 00 46 22.78 +58 40 12.1 u C73
2011-11-27 17:44:07 C 00 46 22.69 +58 40 10.8 u C73
2011-11-27 17:45:23 C 00 46 22.67 +58 40 09.2 u C73
2011-11-27 17:46:38 C 00 46 22.65 +58 40 07.9 u C73
2011-11-27 17:47:54 C 00 46 22.62 +58 40 06.7 u C73
2011-11-28 19:46:14 C 00 45 58.15 +58 12 01.3 o 639
2011-11-28 19:53:55 C 00 45 58.04 +58 11 53.0 o 639
2011-11-28 20:04:24 C 00 45 57.84 +58 11 41.5 o 639
2011-11-28 20:10:54 C 00 45 57.71 +58 11 34.3 o 639
2011-12-02 18:28:35 C 00 45 39.52 +56 21 38.2 u C73
2011-12-02 18:29:14 C 00 45 39.53 +56 21 37.3 u C73
2011-12-02 18:29:56 C 00 45 39.56 +56 21 36.4 u C73
2011-12-02 18:30:36 C 00 45 39.56 +56 21 35.5 u C73
2011-12-02 18:31:16 C 00 45 39.57 +56 21 34.8 u C73
2011-12-02 18:31:57 C 00 45 39.54 +56 21 34.0 u C73
2011-12-02 18:32:36 C 00 45 39.61 +56 21 33.3 u C73
2011-12-02 18:33:17 C 00 45 39.51 +56 21 32.3 u C73
2011-12-02 18:33:58 C 00 45 39.50 +56 21 31.2 u C73
2011-12-02 18:34:38 C 00 45 39.51 +56 21 30.6 u C73
2011-12-02 18:35:19 C 00 45 39.56 +56 21 29.9 u C73
2011-12-02 18:35:59 C 00 45 39.53 +56 21 29.0 u C73
2011-12-02 18:36:39 C 00 45 39.57 +56 21 28.2 u C73
2011-12-02 18:37:20 C 00 45 39.57 +56 21 27.3 u C73
2011-12-02 18:38:00 C 00 45 39.54 +56 21 26.5 u C73
2011-12-02 18:38:40 C 00 45 39.57 +56 21 25.8 u C73
2011-12-02 18:39:21 C 00 45 39.56 +56 21 24.9 u C73
2011-12-02 18:40:01 C 00 45 39.55 +56 21 24.1 u C73
2011-12-22 22:47:08 C 01 09 20.70 +44 04 53.2 r 203
2011-12-22 23:45:00 C 01 09 25.57 +44 03 08.1 r 203
2011-12-23 21:44:31 C 01 11 21.69 +43 23 48.1 o J16
2011-12-23 21:57:21 C 01 11 22.79 +43 23 24.7 o J16
2011-12-23 22:05:57 C 01 11 23.55 +43 23 08.9 o J16
2011-12-27 18:35:29 C 01 20 08.81 +40 32 55.2 t 130
2011-12-27 18:38:22 C 01 20 09.08 +40 32 49.9 t 130
2011-12-27 18:41:16 C 01 20 09.36 +40 32 44.3 t 130
2011-12-27 18:44:09 C 01 20 09.62 +40 32 39.0 t 130
2011-12-28 20:05:59 C 01 22 43.60 +39 44 44.8 w I99