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
2020-10-09 12:34:25 C 10 12 43.31 +07 45 58.8 U I41
2020-10-09 12:41:10 C 10 12 44.23 +07 45 48.7 U I41
2020-10-09 12:47:55 C 10 12 45.17 +07 45 38.2 U I41
2020-10-17 12:31:26 C 10 39 03.42 +02 47 51.9 U I41
2020-10-17 12:38:17 C 10 39 04.34 +02 47 41.2 U I41
2020-10-17 12:45:07 C 10 39 05.28 +02 47 30.4 U I41
2020-10-19 12:29:32 C 10 45 33.87 +01 32 34.3 U I41
2020-10-19 12:34:17 C 10 45 34.53 +01 32 27.0 U I41
2020-10-19 12:36:20 C 10 45 34.78 +01 32 23.8 U I41
2020-10-19 12:41:06 C 10 45 35.44 +01 32 16.3 U I41
2020-10-19 12:43:10 C 10 45 35.71 +01 32 13.0 U I41
2020-10-19 12:47:55 C 10 45 36.35 +01 32 05.6 U I41
2020-10-19 12:49:58 C 10 45 36.62 +01 32 02.5 U I41
2020-10-19 13:01:31 C 10 45 38.18 +01 31 44.2 U I41
2020-10-21 12:39:14 C 10 52 04.40 +00 16 51.9 U I41
2020-10-21 12:45:57 C 10 52 05.31 +00 16 41.3 U I41
2020-10-21 12:52:42 C 10 52 06.21 +00 16 30.7 U I41
2020-10-21 12:59:25 C 10 52 07.12 +00 16 20.3 U I41
2020-10-22 14:50:20 C 10 55 36.14 -00 24 16.8 V T08
2020-10-22 15:04:56 C 10 55 38.11 -00 24 39.3 V T08
2020-10-22 15:18:51 C 10 55 40.02 -00 25 02.0 V T08
2020-10-22 15:25:30 C 10 55 40.88 -00 25 12.7 V T08
2020-10-23 12:36:17 C 10 58 31.91 -00 58 31.6 U I41
2020-10-23 12:43:07 C 10 58 32.83 -00 58 42.5 U I41
2020-10-23 12:49:59 C 10 58 33.74 -00 58 53.1 U I41
2020-10-23 12:56:50 C 10 58 34.69 -00 59 04.0 U I41
2020-10-23 13:03:40 C 10 58 35.57 -00 59 14.9 U I41
2020-10-29 12:37:09 C 11 17 49.49 -04 44 05.4 U I41
2020-10-29 12:43:56 C 11 17 50.40 -04 44 15.9 U I41
2020-10-29 12:57:34 C 11 17 52.19 -04 44 37.3 U I41
2020-10-29 13:04:22 C 11 17 53.10 -04 44 47.3 U I41
2020-11-04 12:48:34 C 11 37 02.33 -08 26 41.2 U I41
2020-11-04 12:55:17 C 11 37 03.22 -08 26 51.3 U I41
2020-11-04 13:02:02 C 11 37 04.11 -08 27 01.7 U I41
2020-11-04 13:08:47 C 11 37 04.99 -08 27 11.8 U I41
2020-11-12 12:54:51 C 12 02 34.69 -13 14 16.3 U I41
2020-11-12 13:01:36 C 12 02 35.58 -13 14 26.0 U I41
2020-11-12 13:08:19 C 12 02 36.46 -13 14 35.9 U I41
2020-11-12 13:15:04 C 12 02 37.36 -13 14 45.8 U I41
2021-06-30 08:20:38 C 16 25 13.34 -36 56 47.5 V T08
2021-06-30 08:27:18 C 16 25 13.07 -36 56 43.1 V T08
2021-06-30 08:35:16 C 16 25 12.74 -36 56 38.7 V T08
2021-06-30 08:51:51 C 16 25 12.06 -36 56 27.8 V T08
2022-05-27 10:16:53 C 22 02 23.093 +01 56 46.90 V G96
2022-05-27 10:24:20 C 22 02 23.201 +01 56 50.10 V G96
2022-05-27 10:31:46 C 22 02 23.316 +01 56 53.48 V G96
2022-05-27 10:39:11 C 22 02 23.399 +01 56 55.97 V G96
2022-06-28 13:03:29 C 22 02 26.806 +06 55 34.26 U F52
2022-06-28 13:19:15 C 22 02 26.550 +06 55 39.57 U F52
2022-06-28 13:35:03 C 22 02 26.285 +06 55 44.94 U F52