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
2011-12-28 20:10:22 C 01 22 44.02 +39 44 37.2 w I99
2011-12-28 20:17:00 C 01 22 44.70 +39 44 24.2 w I99
2011-12-31 08:40:49 C 01 29 08.80 +37 48 22.6 u 379
2011-12-31 08:57:46 C 01 29 10.58 +37 47 50.0 u 379
2011-12-31 09:12:18 C 01 29 12.08 +37 47 21.6 u 379
2011-12-31 09:24:21 C 01 29 13.32 +37 46 58.2 u 379
2011-12-31 09:29:40 C 01 29 13.85 +37 46 48.2 u 379
2011-12-31 09:35:15 C 01 29 14.42 +37 46 37.1 u 379
2011-12-31 09:37:55 C 01 29 14.69 +37 46 31.8 u 379
2012-01-01 19:32:31 C 01 32 59.12 +36 40 10.7 a 233
2012-01-01 19:40:40 C 01 32 59.99 +36 39 54.7 a 233
2012-01-01 19:45:22 C 01 33 00.46 +36 39 45.4 a 233
2012-01-02 09:04:27 C 01 34 31.16 +36 13 34.3 u 379
2012-01-02 09:21:06 C 01 34 32.96 +36 13 01.8 u 379
2012-01-02 09:23:47 C 01 34 33.22 +36 12 56.6 u 379
2012-01-06 08:52:41 C 01 45 45.43 +33 01 44.2 u 379
2012-01-06 09:00:55 C 01 45 46.34 +33 01 27.0 u 379
2012-01-06 09:03:35 C 01 45 46.64 +33 01 21.9 u 379
2012-01-06 09:06:14 C 01 45 46.99 +33 01 16.5 u 379
2012-01-06 09:11:51 C 01 45 47.59 +33 01 04.9 u 379
2012-01-09 20:47:12 C 01 56 08.66 +30 09 55.6 c A24
2012-01-09 20:48:15 C 01 56 08.80 +30 09 53.4 c A24
2012-01-09 21:02:16 C 01 56 10.52 +30 09 24.2 c A24
2012-01-09 21:30:17 C 01 56 13.99 +30 08 25.9 c A24
2012-01-09 21:31:20 C 01 56 14.11 +30 08 23.6 c A24
2012-01-10 18:38:45 C 01 58 56.32 +29 24 46.6 c A24
2012-01-10 18:39:48 C 01 58 56.46 +29 24 44.4 c A24
2012-01-10 19:02:41 C 01 58 59.28 +29 23 56.9 c A24
2012-01-10 19:48:28 C 01 59 04.95 +29 22 21.6 c A24
2012-01-10 19:49:30 C 01 59 05.04 +29 22 19.6 c A24
2012-01-11 18:43:50 C 02 02 02.34 +28 34 50.0 c A24
2012-01-11 18:44:52 C 02 02 02.46 +28 34 47.8 c A24
2012-01-11 19:30:44 C 02 02 08.20 +28 33 12.1 c A24
2012-01-11 19:53:11 C 02 02 11.03 +28 32 25.4 c A24
2012-01-11 19:54:13 C 02 02 11.14 +28 32 23.3 c A24
2012-01-12 20:03:30 C 02 05 19.78 +27 42 07.9 c A24
2012-01-12 20:04:48 C 02 05 19.95 +27 42 05.2 c A24
2012-01-13 19:01:35 C 02 08 21.20 +26 54 14.4 c A24
2012-01-13 20:11:30 C 02 08 30.15 +26 51 47.2 c A24
2012-01-13 20:12:33 C 02 08 30.27 +26 51 45.1 c A24
2012-01-14 09:04:57 C 02 10 13.21 +26 24 56.3 u 379
2012-01-14 09:06:46 C 02 10 13.43 +26 24 52.3 u 379
2012-01-14 09:21:21 C 02 10 15.29 +26 24 21.8 u 379
2012-01-14 09:23:11 C 02 10 15.52 +26 24 17.9 u 379
2012-01-14 18:41:48 C 02 11 29.63 +26 04 46.7 c A24
2012-01-14 18:42:50 C 02 11 29.77 +26 04 44.4 c A24
2012-01-16 20:10:04 C 02 18 08.33 +24 21 09.8 o J16
2012-01-16 20:15:36 C 02 18 09.06 +24 20 57.7 o J16
2012-01-16 20:21:02 C 02 18 09.76 +24 20 46.6 o J16
2012-01-21 19:27:39 C 02 34 34.47 +20 11 47.7 c A24