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
2022-07-22 09:16:16 C 21 46 28.963 +09 34 34.68 U F52
2022-07-22 09:32:43 C 21 46 28.281 +09 34 38.04 U F52
2022-07-22 09:49:10 C 21 46 27.601 +09 34 41.12 U F52
2022-07-22 10:05:36 C 21 46 26.928 +09 34 44.50 U F52
2022-07-31 09:05:58 C 21 37 05.607 +10 08 29.04 U F52
2022-07-31 09:21:33 C 21 37 04.875 +10 08 30.97 U F52
2022-07-31 09:37:09 C 21 37 04.121 +10 08 32.73 U F52
2022-07-31 09:52:49 C 21 37 03.371 +10 08 34.61 U F52
2022-08-07 15:54:36 C 21 28 33.54 +10 22 35.9 V D29
2022-08-07 16:35:19 C 21 28 31.45 +10 22 37.3 V D29
2022-08-21 11:06:30 C 21 11 29.831 +10 15 28.27 U F51
2022-08-21 11:39:31 C 21 11 28.103 +10 15 25.52 U F51
2022-08-21 11:56:06 C 21 11 27.245 +10 15 23.97 U F51
2022-09-01 13:17:52 C 20 58 32.65 +09 40 25.8 V D29
2022-09-01 13:38:14 C 20 58 31.73 +09 40 22.4 V D29
2022-09-19 05:41:38 C 20 42 49.135 +08 10 12.19 U F51
2022-09-19 05:57:28 C 20 42 48.676 +08 10 08.42 U F51
2022-09-19 06:13:49 C 20 42 48.207 +08 10 04.54 U F51
2022-09-25 06:28:07 C 20 39 20.889 +07 35 18.14 U F51
2022-09-25 06:39:58 C 20 39 20.642 +07 35 15.42 U F51
2022-09-25 06:52:13 C 20 39 20.377 +07 35 12.39 U F51
2022-11-15 05:01:24 C 20 50 12.661 +04 15 58.60 U F52
2022-11-15 05:09:35 C 20 50 12.916 +04 15 58.50 U F52
2022-11-15 05:17:46 C 20 50 13.205 +04 15 57.69 U F52
2022-11-15 05:25:57 C 20 50 13.478 +04 15 57.50 U F52
2022-11-19 01:22:18 C 20 53 27.820 +04 13 05.23 V G96
2022-11-19 01:29:52 C 20 53 28.136 +04 13 04.48 V G96
2022-11-19 01:37:25 C 20 53 28.360 +04 13 05.16 V G96
2022-11-19 01:44:58 C 20 53 28.622 +04 13 04.58 V G96
2024-07-06 09:25:25 C 17 25 54.578 -31 52 27.17 X F52
2024-07-06 09:37:47 C 17 25 53.938 -31 52 21.86 X F52
2024-07-06 09:50:09 C 17 25 53.309 -31 52 16.41 X F52
2024-07-06 10:02:37 C 17 25 52.638 -31 52 10.85 X F52
2025-06-06 13:36:42 C 22 26 11.441 +07 32 22.71 X F51
2025-06-06 13:53:29 C 22 26 11.634 +07 32 30.59 X F51
2025-06-06 14:10:19 C 22 26 11.827 +07 32 38.35 X F51
2025-06-21 12:52:58 C 22 28 27.520 +10 14 22.19 X F52
2025-06-21 13:08:43 C 22 28 27.494 +10 14 29.12 X F52
2025-06-21 13:24:44 C 22 28 27.462 +10 14 36.39 X F52
2025-07-06 12:06:30 C 22 25 38.482 +12 44 21.71 X F52
2025-07-06 12:22:57 C 22 25 38.199 +12 44 28.09 X F52
2025-07-06 12:39:32 C 22 25 37.939 +12 44 34.50 X F52
2025-07-06 12:56:12 C 22 25 37.660 +12 44 40.93 X F52
2025-08-02 09:55:15 C 22 06 04.401 +16 01 22.72 X F52
2025-08-02 10:12:05 C 22 06 03.649 +16 01 25.99 X F52
2025-08-02 10:28:53 C 22 06 02.892 +16 01 29.14 X F52
2025-08-03 17:24:40 C 22 04 40.01 +16 07 11.7 V D29
2025-08-03 17:25:56 C 22 04 39.98 +16 07 12.2 V D29
2025-08-03 17:45:02 C 22 04 39.02 +16 07 15.7 V D29
2025-08-03 17:46:18 C 22 04 39.00 +16 07 15.8 V D29