163692 (2003 CY18)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4107994583 ± 2.32e-09
Semi-major axis (a)1.5259798196 AU ± 4.97e-10
Inclination (i)7.20751808° ± 7.45e-07
Long. of Asc. Node (Ω)114.32553875° ± 5.93e-06
Arg. of Perihelion (ω)180.98936307° ± 5.92e-06
Mean Anomaly (M)285.20386436° ± 7.03e-07
Mean Motion (n)0.5228644210°/day ± 2.55e-10
Perihelion dist (q)0.89910814 AU ± 3.55e-09
Aphelion dist (Q)2.15285150 AU ± 3.61e-09
Orbital Period1.88505135 yr ± 9.20e-10
Physical Parameters
H (abs. magnitude)18.27
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.268″
Uncertainty0
Orbit TypeApollo
MOID0.092638 AU
Observations Used1263
Radar Obs Used4
Oppositions9
Arc Total2003-2022
First Observation Used2003-02-09
Last Observation Used2025-01-03
Observations (1493)
Date Type RA Dec Mag Band Observatory
2014-01-04 07:20:41 C 08 19 06.42 +19 30 25.7 o 691
2014-01-04 07:46:13 C 08 19 04.78 +19 30 34.3 o 691
2014-01-21 08:43:54 C 07 50 59.18 +21 51 14.8 q G96
2014-01-21 08:52:41 C 07 50 58.56 +21 51 17.6 q G96
2014-01-21 09:01:28 C 07 50 57.92 +21 51 20.6 q G96
2014-01-21 09:10:16 C 07 50 57.27 +21 51 23.1 q G96
2014-01-22 14:10:56 C 07 48 53.30 +22 00 47.1 q D29
2014-01-22 14:35:16 C 07 48 51.53 +22 00 54.6 q D29
2016-01-07 03:22:09 C 09 29 41.11 +17 07 51.9 20.7 u J43
2016-01-07 03:35:56 C 09 29 40.55 +17 07 55.9 20.1 u J43
2016-01-07 03:49:42 C 09 29 40.01 +17 08 01.4 20.1 u J43
2016-01-07 04:03:28 C 09 29 39.32 +17 08 05.8 19.8 u J43
2016-01-07 14:13:58 C 09 29 15.038 +17 11 48.78 L F51
2016-01-07 14:35:26 C 09 29 14.136 +17 11 56.59 L F51
2016-01-07 14:56:51 C 09 29 13.230 +17 12 04.19 L F51
2016-01-07 15:18:29 C 09 29 12.326 +17 12 12.05 L F51
2016-01-08 04:01:04 C 09 28 41.51 +17 16 51.0 c J04
2016-01-08 04:17:14 C 09 28 40.81 +17 16 57.2 c J04
2016-01-08 04:33:23 C 09 28 40.05 +17 17 03.4 c J04
2016-01-08 04:49:34 C 09 28 39.34 +17 17 09.7 c J04
2016-01-08 10:00:10 C 09 28 26.929 +17 19 04.45 L F51
2016-01-08 10:41:58 C 09 28 25.104 +17 19 20.30 L F51
2016-01-08 11:02:57 C 09 28 24.197 +17 19 28.14 L F51
2016-01-28 06:06:38 C 09 01 24.63 +20 41 51.2 q G96
2016-01-28 06:15:53 C 09 01 24.02 +20 41 55.7 q G96
2016-01-28 06:25:08 C 09 01 23.35 +20 41 59.7 q G96
2016-01-28 06:34:23 C 09 01 22.71 +20 42 04.2 q G96
2016-01-28 07:23:36 C 09 01 19.24 +20 42 26.4 q G96
2016-01-28 07:32:13 C 09 01 18.61 +20 42 30.1 q G96
2016-01-28 07:40:49 C 09 01 18.03 +20 42 34.1 q G96
2016-01-28 07:49:26 C 09 01 17.42 +20 42 37.9 q G96
2016-01-29 04:30:28 C 08 59 52.39 +20 51 50.9 q G96
2016-01-29 04:33:04 C 08 59 52.25 +20 51 52.5 q G96
2016-01-29 04:41:26 C 08 59 51.58 +20 51 56.4 q G96
2016-01-29 04:44:03 C 08 59 51.49 +20 51 57.2 q G96
2016-01-29 04:52:25 C 08 59 50.83 +20 52 01.3 q G96
2016-01-29 04:55:00 C 08 59 50.69 +20 52 02.4 q G96
2016-01-29 05:03:24 C 08 59 50.07 +20 52 05.8 q G96
2016-01-29 05:06:00 C 08 59 49.89 +20 52 07.4 q G96
2016-01-29 12:44:00 C 08 59 17.633 +20 55 33.04 L F51
2016-01-29 13:02:27 C 08 59 16.326 +20 55 41.07 L F51
2016-01-29 13:20:48 C 08 59 15.008 +20 55 49.32 L F51
2016-01-29 13:39:14 C 08 59 13.694 +20 55 57.25 L F51
2016-02-09 07:51:13 C 08 40 59.016 +22 44 36.82 L F51
2016-02-09 08:26:24 C 08 40 56.480 +22 44 50.63 L F51
2016-02-09 08:44:05 C 08 40 55.201 +22 44 57.51 L F51
2016-02-15 04:13:10 C 08 31 24.39 +23 35 21.8 m V30
2016-02-15 04:46:06 C 08 31 22.21 +23 35 33.3 m V30
2016-02-15 05:18:54 C 08 31 19.93 +23 35 43.6 m V30
2016-03-04 05:42:44 C 08 08 28.082 +25 21 35.67 L F51
Radar Observations (5)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2005-07-12 16:45:00 116007280.98 2 us 2380 -1 -1
2005-07-12 16:45:00 2251.6404 0.05 Hz 2380 -1 -1
2022-05-29 20:40:00 93212479.79 2 us 8560 -14 -14
2022-05-29 21:30:00 71333.27 0.2 Hz 8560 -14 -14
2022-06-01 06:20:00 92325795.86 0.5 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)