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
2025-08-05 08:43:23 C 22 02 52.158 +16 13 52.68 X F52
2025-08-05 09:09:24 C 22 02 50.924 +16 13 57.03 X F52
2025-08-05 09:22:24 C 22 02 50.304 +16 13 59.02 X F52
2025-08-05 12:40:40 C 22 02 40.831 +16 14 30.84 X F51
2025-08-05 12:57:13 C 22 02 40.034 +16 14 33.44 X F51
2025-08-05 13:13:49 C 22 02 39.243 +16 14 35.99 X F51
2025-08-05 13:30:24 C 22 02 38.445 +16 14 38.65 X F51
2025-08-08 13:13:59 C 21 59 13.116 +16 24 50.44 X F52
2025-08-08 13:26:46 C 21 59 12.489 +16 24 52.04 X F52
2025-08-08 13:39:34 C 21 59 11.833 +16 24 53.46 X F52
2025-08-09 09:30:19 C 21 58 13.743 +16 27 17.07 X F51
2025-08-09 09:42:44 C 21 58 13.112 +16 27 18.66 X F51
2025-08-09 09:55:04 C 21 58 12.512 +16 27 20.21 X F51
2025-08-09 10:07:26 C 21 58 11.872 +16 27 21.54 X F51
2025-08-13 12:05:20 C 21 53 14.706 +16 36 20.81 X F51
2025-08-13 12:14:52 C 21 53 14.213 +16 36 21.67 X F51
2025-08-13 12:23:35 C 21 53 13.738 +16 36 21.73 X F52
2025-08-13 12:24:20 C 21 53 13.712 +16 36 21.86 X F51
2025-08-13 12:33:45 C 21 53 13.205 +16 36 22.74 X F51
2025-08-13 12:36:34 C 21 53 13.063 +16 36 22.96 X F52
2025-08-13 12:46:30 C 21 53 12.532 +16 36 23.48 X F51
2025-08-13 12:49:35 C 21 53 12.366 +16 36 23.79 X F52
2025-08-13 12:55:52 C 21 53 12.042 +16 36 24.18 X F51
2025-08-13 13:02:33 C 21 53 11.686 +16 36 24.45 X F52
2025-08-13 13:05:17 C 21 53 11.536 +16 36 24.63 X F51
2025-08-13 13:14:42 C 21 53 11.035 +16 36 25.27 X F51
2025-08-14 13:06:22 C 21 51 56.813 +16 37 52.77 X F52
2025-08-14 13:09:33 C 21 51 56.627 +16 37 52.98 X F51
2025-08-14 13:18:18 C 21 51 56.158 +16 37 53.49 X F52
2025-08-14 13:22:46 C 21 51 55.932 +16 37 53.61 X F51
2025-08-14 13:30:12 C 21 51 55.529 +16 37 54.02 X F52
2025-08-14 13:49:14 C 21 51 54.510 +16 37 55.26 X F51
2025-08-14 14:03:01 C 21 51 53.794 +16 37 55.79 X F51
2025-08-14 14:17:17 C 21 51 53.031 +16 37 56.51 X F51
2025-08-14 14:31:32 C 21 51 52.277 +16 37 57.04 X F51
2025-08-15 07:53:57 C 21 50 58.280 +16 38 49.58 X F51
2025-08-15 08:12:15 C 21 50 57.305 +16 38 50.48 X F51
2025-08-15 08:30:34 C 21 50 56.322 +16 38 51.40 X F51
2025-08-15 08:48:57 C 21 50 55.340 +16 38 52.34 X F51
2025-08-15 19:07:22 C 21 50 22.55 +16 39 17.6 V D29
2025-08-15 19:48:05 C 21 50 20.32 +16 39 19.2 V D29
2025-09-02 07:24:49 C 21 28 00.063 +16 12 17.63 X F52
2025-09-02 07:42:27 C 21 27 59.139 +16 12 14.81 X F52
2025-09-02 08:00:08 C 21 27 58.212 +16 12 12.15 X F52
2025-09-02 08:17:55 C 21 27 57.275 +16 12 09.06 X F52
2025-09-03 10:56:05 C 21 26 35.693 +16 07 40.50 X F52
2025-09-03 11:22:20 C 21 26 34.343 +16 07 35.86 X F52
2025-09-03 11:35:33 C 21 26 33.652 +16 07 33.71 X F52
2025-09-14 06:12:57 C 21 14 30.754 +15 10 41.15 X F52
2025-09-14 06:47:53 C 21 14 29.248 +15 10 32.15 X F52