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
1998-12-21 10:01:09 C 11 10 20.77 +24 16 28.8 18.9 a 704
1998-12-21 10:16:26 C 11 10 25.03 +24 16 10.5 19.3 a 704
1998-12-21 10:31:36 C 11 10 29.40 +24 15 51.4 19.6 a 704
1998-12-21 11:02:17 C 11 10 38.12 +24 15 14.8 19.3 a 704
1998-12-22 03:16:57 C 11 15 25.57 +23 54 56.4 046
1998-12-22 03:18:35 C 11 15 26.14 +23 54 54.4 046
1998-12-22 03:22:37 C 11 15 27.23 +23 54 49.4 046
1998-12-22 03:24:27 C 11 15 27.82 +23 54 47.4 046
1998-12-22 03:25:44 C 11 15 28.10 +23 54 46.1 046
1998-12-22 03:27:12 C 11 15 28.58 +23 54 44.0 046
1999-04-15 07:25:14 C 13 40 32.59 -05 21 47.6 693
1999-04-15 07:36:13 C 13 40 31.92 -05 21 48.6 693
1999-04-15 07:47:04 C 13 40 31.34 -05 21 49.6 693
2002-11-22 04:54:58 C 01 44 25.36 +11 39 37.2 20.2 c 644
2002-11-22 05:25:25 C 01 44 23.26 +11 39 37.5 20.1 c 644
2002-11-22 05:55:33 C 01 44 21.23 +11 39 38.3 20.4 c 644
2002-11-23 05:05:40 C 01 42 53.33 +11 40 19.2 673
2002-11-23 05:11:40 C 01 42 53.01 +11 40 19.3 673
2002-11-23 05:30:29 C 01 42 51.73 +11 40 19.5 673
2002-11-23 06:11:01 C 01 42 48.84 +11 40 21.9 c 448
2002-11-23 06:16:16 C 01 42 48.50 +11 40 21.9 c 448
2002-11-23 06:24:14 C 01 42 48.01 +11 40 22.2 c 448
2002-11-23 06:38:22 C 01 42 47.05 +11 40 22.8 c 448
2002-11-23 17:59:22 C 01 42 05.52 +11 40 42.7 c 046
2002-11-23 18:04:21 C 01 42 05.23 +11 40 40.9 c 046
2002-11-23 18:13:44 C 01 42 04.75 +11 40 43.1 c 046
2002-11-23 18:38:42 C 01 42 03.05 +11 40 43.6 d 557
2002-11-23 18:44:04 C 01 42 02.61 +11 40 43.8 d 557
2002-11-23 18:46:46 C 01 42 02.54 +11 40 43.9 d 557
2002-11-23 18:52:07 C 01 42 02.31 +11 40 43.7 d 557
2002-11-24 03:08:29 C 01 41 31.73 +11 41 09.6 673
2002-11-24 03:14:30 C 01 41 31.33 +11 41 10.0 673
2002-11-24 03:28:40 C 01 41 30.46 +11 41 10.7 673
2002-11-24 03:35:40 C 01 41 29.82 +11 41 11.2 673
2002-11-24 04:54:39 C 01 41 24.48 +11 41 18.6 c 926
2002-11-24 05:00:19 C 01 41 24.25 +11 41 16.1 c 926
2002-11-24 05:05:54 C 01 41 23.84 +11 41 16.3 c 926
2002-11-24 05:11:32 C 01 41 23.42 +11 41 16.6 c 926
2002-11-28 02:50:21 C 01 35 54.90 +11 47 18.6 c 715
2002-11-28 02:58:47 C 01 35 54.40 +11 47 19.4 c 715
2002-11-28 03:07:12 C 01 35 53.92 +11 47 19.9 c 715
2002-12-01 18:19:34 C 01 31 22.03 +11 56 44.6 c 246
2002-12-01 18:21:22 C 01 31 21.97 +11 56 44.8 c 246
2002-12-01 18:24:30 C 01 31 21.79 +11 56 45.9 c 246
2002-12-01 18:26:05 C 01 31 21.74 +11 56 45.7 c 246
2002-12-01 18:27:55 C 01 31 21.58 +11 56 46.1 c 246
2002-12-01 18:29:40 C 01 31 21.51 +11 56 46.6 c 246
2003-01-02 03:01:09 C 01 25 55.60 +16 43 02.2 c 448
2003-01-02 03:21:41 C 01 25 56.39 +16 43 14.0 c 448
2003-01-02 03:42:14 C 01 25 57.03 +16 43 26.7 c 448