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
2020-08-22 12:12:48 C 07 18 27.01 +31 01 46.9 U I41
2020-08-24 11:54:27 C 07 26 15.74 +30 24 29.1 U I41
2020-08-24 12:01:35 C 07 26 16.90 +30 24 23.5 U I41
2020-08-24 12:08:41 C 07 26 18.07 +30 24 17.7 U I41
2020-08-26 11:56:22 C 07 34 05.32 +29 44 48.5 U I41
2020-08-26 11:58:26 C 07 34 05.68 +29 44 47.1 U I41
2020-08-26 12:02:51 C 07 34 06.40 +29 44 43.5 U I41
2020-08-26 12:03:31 C 07 34 06.50 +29 44 42.8 U I41
2020-08-26 12:05:36 C 07 34 06.83 +29 44 40.9 U I41
2020-08-26 12:10:02 C 07 34 07.54 +29 44 37.5 U I41
2020-08-26 12:10:42 C 07 34 07.66 +29 44 36.6 U I41
2020-08-26 12:12:47 C 07 34 08.00 +29 44 35.0 U I41
2020-08-26 12:17:11 C 07 34 08.72 +29 44 31.2 U I41
2020-08-26 12:19:56 C 07 34 09.16 +29 44 29.1 U I41
2020-08-30 11:53:01 C 07 49 35.20 +28 19 18.7 U I41
2020-08-30 11:55:46 C 07 49 35.63 +28 19 16.2 U I41
2020-08-30 12:00:05 C 07 49 36.32 +28 19 12.2 U I41
2020-08-30 12:02:51 C 07 49 36.76 +28 19 09.6 U I41
2020-08-30 12:07:10 C 07 49 37.47 +28 19 05.6 U I41
2020-08-30 12:09:56 C 07 49 37.90 +28 19 03.0 U I41
2020-08-30 12:14:15 C 07 49 38.58 +28 18 59.1 U I41
2020-08-30 12:17:01 C 07 49 39.02 +28 18 56.4 U I41
2020-09-01 11:55:15 C 07 57 16.31 +27 33 25.5 U I41
2020-09-01 12:02:02 C 07 57 17.36 +27 33 19.0 U I41
2020-09-01 12:09:07 C 07 57 18.52 +27 33 12.2 U I41
2020-09-01 12:15:53 C 07 57 19.59 +27 33 05.8 U I41
2020-09-01 12:22:40 C 07 57 20.68 +27 32 59.4 U I41
2020-09-15 12:04:41 C 08 49 30.15 +21 18 44.1 U I41
2020-09-15 12:11:28 C 08 49 31.17 +21 18 35.6 U I41
2020-09-15 12:18:18 C 08 49 32.19 +21 18 27.4 U I41
2020-09-15 12:25:06 C 08 49 33.22 +21 18 18.7 U I41
2020-09-15 12:31:54 C 08 49 34.25 +21 18 10.3 U I41
2020-09-17 12:24:34 C 08 56 46.60 +20 17 47.6 U I41
2020-09-17 12:31:21 C 08 56 47.62 +20 17 39.1 U I41
2020-09-17 12:33:25 C 08 56 47.96 +20 17 36.3 U I41
2020-09-17 12:38:07 C 08 56 48.67 +20 17 29.8 U I41
2020-09-21 12:11:34 C 09 11 01.13 +18 12 23.7 U I41
2020-09-21 12:18:23 C 09 11 02.14 +18 12 14.6 U I41
2020-09-21 12:25:11 C 09 11 03.13 +18 12 05.6 U I41
2020-09-21 12:31:58 C 09 11 04.14 +18 11 56.6 U I41
2020-09-21 12:38:46 C 09 11 05.14 +18 11 47.4 U I41
2020-10-01 12:15:36 C 09 45 45.01 +12 34 48.7 U I41
2020-10-01 12:22:24 C 09 45 45.97 +12 34 38.7 U I41
2020-10-01 12:29:11 C 09 45 46.92 +12 34 28.7 U I41
2020-10-01 12:35:58 C 09 45 47.89 +12 34 18.7 U I41
2020-10-01 12:42:46 C 09 45 48.87 +12 34 08.9 U I41
2020-10-07 12:24:36 C 10 06 01.69 +08 59 29.3 U I41
2020-10-07 12:31:24 C 10 06 02.62 +08 59 19.1 U I41
2020-10-07 12:38:09 C 10 06 03.56 +08 59 08.7 U I41
2020-10-07 12:44:57 C 10 06 04.51 +08 58 58.4 U I41