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
2017-03-15 08:22:13 C 16 18 17.20 -02 32 27.0 u H21
2017-03-15 12:57:44 C 16 19 13.52 -02 34 29.7 L T05
2017-03-15 13:23:45 C 16 19 18.51 -02 34 42.6 L T05
2017-03-15 13:51:08 C 16 19 23.67 -02 34 56.2 L T05
2017-03-15 14:17:30 C 16 19 28.66 -02 35 09.3 L T05
2017-03-17 02:43:23 C 16 26 49.29 -02 53 29.3 q 160
2017-03-17 02:45:20 C 16 26 49.65 -02 53 30.1 q 160
2017-03-17 02:47:16 C 16 26 50.00 -02 53 31.1 q 160
2017-03-23 07:55:43 C 16 55 32.66 -04 04 01.5 q W88
2017-03-23 08:25:21 C 16 55 37.73 -04 04 15.2 q W88
2017-03-23 08:40:11 C 16 55 40.28 -04 04 21.9 q W88
2017-03-23 08:55:52 C 16 55 43.00 -04 04 29.7 q W88
2017-03-28 01:48:25 C 17 15 45.53 -04 57 05.6 q 160
2017-03-28 01:50:26 C 17 15 45.84 -04 57 06.3 q 160
2017-03-28 01:52:27 C 17 15 46.17 -04 57 07.2 q 160
2017-04-09 01:25:18 C 17 59 20.64 -07 00 40.0 q 160
2017-04-09 01:27:19 C 17 59 20.92 -07 00 39.9 q 160
2017-04-09 01:29:21 C 17 59 21.10 -07 00 41.8 q 160
2017-04-14 10:31:51 C 18 15 20.46 -07 54 14.4 q H15
2017-04-14 10:45:47 C 18 15 21.80 -07 54 20.3 q H15
2017-04-14 10:59:40 C 18 15 23.26 -07 54 26.3 q H15
2017-05-24 02:28:39 C 19 00 57.59 -15 59 41.7 d Z35
2017-05-24 02:38:38 C 19 00 57.27 -15 59 48.1 d Z35
2017-05-24 02:48:40 C 19 00 57.00 -15 59 52.4 d Z35
2017-05-25 01:18:16 C 19 00 28.67 -16 14 39.5 d Z35
2017-05-25 01:33:46 C 19 00 28.14 -16 14 49.1 d Z35
2017-05-25 01:51:05 C 19 00 27.58 -16 14 58.6 d Z35
2017-05-26 01:49:45 C 18 59 51.81 -16 30 52.2 d Z35
2017-05-26 02:06:06 C 18 59 51.26 -16 31 00.1 d Z35
2017-05-26 02:22:07 C 18 59 50.62 -16 31 11.7 d Z35
2017-06-16 06:26:14 C 18 34 16.46 -22 03 49.3 q H15
2017-06-16 06:35:15 C 18 34 15.78 -22 03 55.2 q H15
2017-06-16 06:44:19 C 18 34 15.06 -22 04 00.0 q H15
2017-06-29 07:06:05 C 18 15 26.47 -24 36 45.0 q W88
2017-06-29 08:16:05 C 18 15 22.41 -24 37 10.0 q W88
2019-07-14 14:15:51 C 01 37 35.246 +06 33 50.37 U F51
2019-07-14 14:22:40 C 01 37 35.657 +06 33 52.44 U F51
2019-07-14 14:29:31 C 01 37 36.052 +06 33 54.17 U F51
2019-07-14 14:36:19 C 01 37 36.484 +06 33 56.10 U F51
2019-09-25 12:29:57 C 02 13 15.848 +07 00 07.41 U F51
2019-09-25 12:48:16 C 02 13 15.029 +07 00 01.96 U F51
2019-09-25 13:24:54 C 02 13 13.381 +06 59 50.80 U F51
2019-09-26 12:50:11 C 02 12 12.955 +06 52 39.88 U F51
2019-09-26 13:09:04 C 02 12 12.067 +06 52 33.96 U F51
2019-09-26 13:27:54 C 02 12 11.182 +06 52 28.20 U F51
2019-09-26 13:46:37 C 02 12 10.301 +06 52 22.26 U F51
2019-10-01 10:18:11 C 02 06 28.44 +06 13 57.1 V G96
2019-10-01 10:25:38 C 02 06 28.00 +06 13 54.5 V G96
2019-10-01 10:33:04 C 02 06 27.60 +06 13 52.0 V G96
2019-10-01 10:40:31 C 02 06 27.17 +06 13 49.4 V G96
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)