141018 (2001 WC47)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2410885219 ± 2.37e-09
Semi-major axis (a)1.3986835315 AU ± 4.83e-10
Inclination (i)2.86931443° ± 3.16e-07
Long. of Asc. Node (Ω)91.59689055° ± 9.08e-06
Arg. of Perihelion (ω)101.46958094° ± 8.15e-06
Mean Anomaly (M)84.09314752° ± 1.97e-06
Mean Motion (n)0.5958447047°/day ± 3.09e-10
Perihelion dist (q)1.06147699 AU ± 3.34e-09
Aphelion dist (Q)1.73589008 AU ± 3.37e-09
Orbital Period1.65416639 yr ± 8.57e-10
Physical Parameters
H (abs. magnitude)19.04
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.274″
Uncertainty0
Orbit TypeAmor
MOID0.078185 AU
Observations Used1601
Radar Obs Used4
Oppositions8
Arc Total1991-2012
First Observation Used1991-12-07
Last Observation Used2025-03-20
Observations (1697)
Date Type RA Dec Mag Band Observatory
1991-12-07 05:06:59 02 47 55.11 +12 32 05.0 d 261
1991-12-07 06:01:59 02 47 51.69 +12 31 59.1 d 261
1997-02-03 02:18:59 C 03 31 08.25 +20 04 22.0 a 691
1997-02-03 02:51:30 C 03 31 09.90 +20 04 32.5 a 691
1997-02-03 03:23:40 C 03 31 11.46 +20 04 42.8 a 691
2001-11-20 08:53:08 C 05 48 14.23 +20 28 05.2 18.9 c 704
2001-11-20 09:35:21 C 05 48 12.52 +20 28 07.8 19.4 c 704
2001-11-20 09:56:30 C 05 48 11.69 +20 28 08.5 19.7 c 704
2001-11-21 09:25:01 C 05 47 18.39 +20 29 38.4 19.6 c 704
2001-11-21 09:46:09 C 05 47 17.45 +20 29 40.1 19.8 c 704
2001-11-21 10:07:19 C 05 47 16.57 +20 29 41.2 19.6 c 704
2001-11-21 10:28:28 C 05 47 15.63 +20 29 42.5 19.7 c 704
2001-12-06 05:21:42 C 05 26 19.49 +20 58 09.6 19.0 c 704
2001-12-06 06:26:41 C 05 26 14.16 +20 58 16.1 19.3 c 704
2001-12-06 06:48:11 C 05 26 12.43 +20 58 18.1 19.2 c 704
2001-12-06 22:56:52 C 05 24 57.36 +20 59 41.8 d 946
2001-12-06 23:10:37 C 05 24 56.17 +20 59 43.5 d 946
2001-12-06 23:14:30 C 05 24 55.84 +20 59 43.9 d 946
2001-12-07 06:50:30 C 05 24 19.86 +21 00 27.1 18.8 c 704
2001-12-07 06:58:16 C 05 24 19.19 +21 00 28.3 19.0 c 704
2001-12-07 07:12:11 C 05 24 18.01 +21 00 28.4 19.9 c 704
2001-12-07 07:19:42 C 05 24 17.41 +21 00 30.4 19.0 c 704
2001-12-07 07:33:49 C 05 24 16.20 +21 00 31.5 19.1 c 704
2001-12-07 07:40:57 C 05 24 15.59 +21 00 32.3 19.3 c 704
2001-12-07 07:55:31 C 05 24 14.35 +21 00 32.7 19.6 c 704
2001-12-07 08:02:16 C 05 24 13.83 +21 00 33.7 19.3 c 704
2001-12-08 06:59:49 C 05 22 23.84 +21 02 37.8 18.9 c 704
2001-12-08 07:21:44 C 05 22 21.98 +21 02 40.4 18.8 c 704
2001-12-08 08:05:37 C 05 22 18.20 +21 02 43.9 18.7 c 704
2001-12-08 08:27:33 C 05 22 16.29 +21 02 46.1 18.8 c 704
2001-12-08 22:00:07 C 05 21 10.55 +21 03 54.0 c 118
2001-12-08 22:02:52 C 05 21 10.32 +21 03 54.2 c 118
2001-12-08 22:11:48 C 05 21 09.61 +21 03 55.3 c 118
2001-12-09 22:14:49 C 05 19 10.02 +21 06 04.5 c 118
2001-12-09 22:16:30 C 05 19 09.89 +21 06 04.5 c 118
2001-12-09 22:22:49 C 05 19 09.32 +21 06 05.1 c 118
2001-12-10 06:59:10 C 05 18 25.92 +21 06 56.3 19.0 c 704
2001-12-10 07:20:47 C 05 18 23.97 +21 06 58.5 18.9 c 704
2001-12-10 07:42:27 C 05 18 22.04 +21 06 59.6 19.0 c 704
2001-12-10 08:04:08 C 05 18 20.11 +21 07 02.0 18.9 c 704
2001-12-10 08:25:48 C 05 18 18.16 +21 07 03.0 18.7 c 704
2001-12-14 05:33:30 C 05 10 14.29 +21 15 14.8 18.4 c 704
2001-12-14 05:55:14 C 05 10 12.24 +21 15 17.2 18.4 c 704
2001-12-14 06:17:01 C 05 10 10.21 +21 15 19.2 18.7 c 704
2001-12-14 06:39:29 C 05 10 08.01 +21 15 21.9 19.1 c 704
2001-12-14 07:01:17 C 05 10 06.04 +21 15 23.2 18.6 c 704
2001-12-17 05:29:24 C 05 03 47.44 +21 21 21.3 19.3 c 704
2001-12-17 05:51:46 C 05 03 45.38 +21 21 23.7 18.5 c 704
2001-12-17 06:13:46 C 05 03 43.28 +21 21 25.9 18.5 c 704
2001-12-17 06:35:31 C 05 03 41.21 +21 21 28.3 18.3 c 704
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2012-02-23 03:49:00 144453538.71 1 us 2380 -1 -1
2012-02-24 03:41:00 142926781.41 1 us 2380 -1 -1
2012-04-25 01:34:00 101829197.45 8 us 2380 -1 -1
2012-04-27 02:37:00 102564234.66 2 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)