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
2019-10-27 05:25:39 C 20 19 20.614 +00 25 54.38 U F52
2019-10-27 05:41:31 C 20 19 20.921 +00 25 53.13 U F52
2019-10-27 05:57:21 C 20 19 21.243 +00 25 51.83 U F52
2020-07-15 11:13:11 C 04 48 18.74 +36 19 24.2 U I41
2020-07-15 11:27:23 C 04 48 20.99 +36 19 24.0 U I41
2020-07-15 11:34:31 C 04 48 22.07 +36 19 24.1 U I41
2020-07-17 11:14:42 C 04 55 54.35 +36 19 57.2 U I41
2020-07-17 11:21:42 C 04 55 55.46 +36 19 57.5 U I41
2020-07-17 11:28:45 C 04 55 56.62 +36 19 57.3 U I41
2020-07-17 11:35:45 C 04 55 57.70 +36 19 57.7 U I41
2020-07-21 11:18:41 C 05 11 17.21 +36 16 00.5 U I41
2020-07-21 11:24:25 C 05 11 18.11 +36 16 00.2 U I41
2020-07-21 11:31:32 C 05 11 19.26 +36 15 59.9 U I41
2020-07-21 11:38:40 C 05 11 20.39 +36 15 59.2 U I41
2020-07-27 11:22:42 C 05 34 45.00 +35 56 36.2 U I41
2020-07-27 11:29:23 C 05 34 46.09 +35 56 35.1 U I41
2020-07-27 11:36:44 C 05 34 47.31 +35 56 33.7 U I41
2020-07-27 11:44:07 C 05 34 48.51 +35 56 32.3 U I41
2020-07-29 11:25:30 C 05 42 39.55 +35 46 20.8 U I41
2020-07-29 11:32:00 C 05 42 40.59 +35 46 19.2 U I41
2020-07-29 11:39:14 C 05 42 41.80 +35 46 17.7 U I41
2020-07-29 11:46:28 C 05 42 43.02 +35 46 16.0 U I41
2020-07-31 11:29:36 C 05 50 36.27 +35 34 06.7 U I41
2020-07-31 11:36:50 C 05 50 37.47 +35 34 04.5 U I41
2020-07-31 11:44:05 C 05 50 38.65 +35 34 02.8 U I41
2020-07-31 11:51:19 C 05 50 39.84 +35 34 00.6 U I41
2020-07-31 11:58:32 C 05 50 41.03 +35 33 58.7 U I41
2020-08-04 11:41:00 C 06 06 34.69 +35 03 34.3 U I41
2020-08-04 12:02:40 C 06 06 38.35 +35 03 25.7 U I41
2020-08-06 11:35:18 C 06 14 33.60 +34 45 16.6 U I41
2020-08-06 11:42:23 C 06 14 34.80 +34 45 13.9 U I41
2020-08-06 11:49:28 C 06 14 35.98 +34 45 11.2 U I41
2020-08-06 11:56:34 C 06 14 37.19 +34 45 08.3 U I41
2020-08-06 12:03:40 C 06 14 38.36 +34 45 05.9 U I41
2020-08-08 11:43:37 C 06 22 35.40 +34 24 48.4 U I41
2020-08-08 11:51:01 C 06 22 36.61 +34 24 44.6 U I41
2020-08-08 12:05:54 C 06 22 39.06 +34 24 38.8 U I41
2020-08-10 11:39:07 C 06 30 35.16 +34 02 18.7 U I41
2020-08-10 11:46:20 C 06 30 36.37 +34 02 15.0 U I41
2020-08-10 11:53:33 C 06 30 37.58 +34 02 11.8 U I41
2020-08-10 11:55:35 C 06 30 37.91 +34 02 10.8 U I41
2020-08-10 12:00:48 C 06 30 38.77 +34 02 08.2 U I41
2020-08-10 12:02:50 C 06 30 39.12 +34 02 07.4 U I41
2020-08-10 12:08:02 C 06 30 40.00 +34 02 05.0 U I41
2020-08-14 11:41:58 C 06 46 35.71 +33 10 50.5 U I41
2020-08-14 11:48:59 C 06 46 36.88 +33 10 46.1 U I41
2020-08-14 11:56:00 C 06 46 38.05 +33 10 42.4 U I41
2020-08-14 12:10:03 C 06 46 40.39 +33 10 34.2 U I41
2020-08-22 11:58:43 C 07 18 24.70 +31 01 57.9 U I41
2020-08-22 12:05:45 C 07 18 25.84 +31 01 52.4 U I41