163667 (2002 WC1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5717124294 ± 2.11e-07
Semi-major axis (a)2.5822662736 AU ± 1.42e-07
Inclination (i)4.63995874° ± 2.50e-05
Long. of Asc. Node (Ω)41.47601195° ± 1.59e-04
Arg. of Perihelion (ω)82.68416703° ± 1.85e-04
Mean Anomaly (M)188.21241759° ± 2.13e-04
Mean Motion (n)0.2375257738°/day ± 1.97e-08
Perihelion dist (q)1.10595255 AU ± 5.47e-07
Aphelion dist (Q)4.05858000 AU ± 5.88e-07
Orbital Period4.14955509 yr ± 3.43e-07
Physical Parameters
H (abs. magnitude)19.88
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.754″
Uncertainty0
Orbit TypeAmor
MOID0.147474 AU
Observations Used56
Oppositions7
Arc Total1998-2007
First Observation Used1998-12-21
Last Observation Used2007-03-12
Observations (57)
Date Type RA Dec Mag Band Observatory
2003-01-05 01:55:42 C 01 28 54.26 +17 30 36.8 19.4 c 704
2003-01-05 02:17:39 C 01 28 55.17 +17 30 52.4 19.7 c 704
2003-01-05 02:39:21 C 01 28 56.12 +17 31 08.0 19.9 c 704
2006-11-17 06:00:44 C 00 19 53.96 -00 22 59.7 21.5 g 705
2006-11-17 06:01:54 C 00 19 53.94 -00 22 59.4 g 705
2007-03-12 03:15:37 C 03 40 49.20 +25 01 17.3 o 291
2007-03-12 03:21:52 C 03 40 50.25 +25 01 20.7 o 291