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
2011-12-24 10:02:47 C 09 04 21.61 +18 44 27.6 r 703
2011-12-24 10:14:58 C 09 04 22.11 +18 44 29.8 r 703
2011-12-24 10:27:13 C 09 04 22.58 +18 44 31.7 r 703
2011-12-24 10:39:24 C 09 04 23.12 +18 44 34.2 r 703
2011-12-24 10:51:56 C 09 04 23.59 +18 44 34.9 r G96
2011-12-24 11:01:59 C 09 04 23.98 +18 44 36.6 r G96
2011-12-24 11:11:56 C 09 04 24.38 +18 44 38.0 r G96
2011-12-24 11:21:57 C 09 04 24.81 +18 44 39.5 r G96
2011-12-28 10:42:19 C 09 08 32.52 +19 02 36.0 o 691
2011-12-28 11:08:10 C 09 08 33.42 +19 02 41.5 o 691
2011-12-28 11:34:01 C 09 08 34.32 +19 02 46.9 o 691
2011-12-30 07:53:42 C 09 10 20.92 +19 13 16.0 18.4 c 704
2011-12-30 08:12:56 C 09 10 21.54 +19 13 21.1 18.5 c 704
2011-12-30 08:32:07 C 09 10 22.16 +19 13 26.3 18.5 c 704
2011-12-30 08:51:15 C 09 10 22.76 +19 13 31.2 18.6 c 704
2011-12-30 09:10:22 C 09 10 23.42 +19 13 36.3 18.2 c 704
2012-01-14 06:52:38 C 09 20 28.67 +21 37 18.2 o 691
2012-01-14 07:18:14 C 09 20 28.93 +21 37 32.8 o 691
2012-01-14 07:43:49 C 09 20 29.17 +21 37 48.0 o 691
2012-01-14 09:31:58 C 09 20 30.04 +21 38 49.7 r 703
2012-01-14 09:39:11 C 09 20 30.15 +21 38 53.7 r 703
2012-01-14 09:46:28 C 09 20 30.19 +21 38 57.7 r 703
2012-01-14 09:53:43 C 09 20 30.26 +21 39 01.9 r 703
2012-01-17 09:59:17 C 09 21 32.82 +22 22 36.2 17.3 c 704
2012-01-17 10:18:19 C 09 21 32.88 +22 22 48.0 17.4 c 704
2012-01-17 10:37:27 C 09 21 32.99 +22 23 00.3 17.5 c 704
2012-01-17 10:56:27 C 09 21 33.04 +22 23 11.4 17.5 c 704
2012-01-17 11:15:38 C 09 21 33.15 +22 23 23.5 17.5 c 704
2012-01-18 06:34:18 C 09 21 48.73 +22 36 01.4 o 691
2012-01-18 07:06:39 C 09 21 48.87 +22 36 23.4 o 691
2012-01-18 07:29:45 C 09 21 48.91 +22 36 39.3 o 691
2012-01-19 10:37:33 C 09 22 04.634 +22 55 07.56 L F51
2012-01-19 10:55:31 C 09 22 04.608 +22 55 20.28 L F51
2012-01-19 14:03:26 C 09 22 04.321 +22 57 28.80 L F51
2012-01-21 08:16:31 C 09 22 23.77 +23 27 35.0 r 703
2012-01-21 08:23:59 C 09 22 23.77 +23 27 39.9 r 703
2012-01-21 08:31:30 C 09 22 23.70 +23 27 45.8 r 703
2012-01-21 08:39:06 C 09 22 23.66 +23 27 51.6 r 703
2012-01-22 21:08:43 C 09 22 34.77 +23 55 11.1 c A24
2012-01-22 21:09:45 C 09 22 34.76 +23 55 11.9 c A24
2012-01-23 22:19:59 C 09 22 37.92 +24 14 58.6 c A24
2012-01-23 22:21:01 C 09 22 37.93 +24 14 59.4 c A24
2012-01-24 00:51:59 C 09 22 36.82 +24 17 01.7 i C91
2012-01-24 01:07:00 C 09 22 36.70 +24 17 13.8 i C91
2012-01-24 06:03:28 C 09 22 37.95 +24 21 13.9 u H21
2012-01-24 06:12:19 C 09 22 37.89 +24 21 21.2 u H21
2012-01-24 06:29:56 C 09 22 37.75 +24 21 35.5 u H21
2012-01-24 17:42:15 C 09 22 39.10 +24 30 25.2 16.9 r 168
2012-01-24 17:48:20 C 09 22 39.08 +24 30 30.3 17.1 r 168
2012-01-24 18:42:35 C 09 22 38.83 +24 31 16.1 17.0 r 168
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)