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
2005-11-03 06:57:29 C 02 58 20.89 -06 12 29.0 c 844
2005-11-03 06:57:55 C 02 58 21.86 -06 12 50.6 r 703
2005-11-03 07:07:07 C 02 58 21.00 -06 12 48.2 r 703
2005-11-03 07:16:21 C 02 58 20.13 -06 12 45.8 r 703
2005-11-03 20:13:26 C 02 57 12.35 -06 08 51.8 19.4 i 071
2005-11-03 20:17:34 C 02 57 11.99 -06 08 49.8 19.0 i 071
2005-11-03 20:20:34 C 02 57 12.15 -06 08 49.0 19.5 i 071
2005-11-28 03:37:48 C 02 23 22.93 -01 50 42.7 o 644
2005-11-28 04:08:21 C 02 23 21.97 -01 50 26.7 o 644
2005-11-28 04:40:55 C 02 23 20.96 -01 50 09.7 o 644
2005-12-01 07:23:28 C 02 21 30.969 -01 10 45.03 e 645
2005-12-01 07:28:28 C 02 21 30.851 -01 10 42.42 21.04 e 645
2005-12-05 04:38:23 C 02 19 58.41 -00 20 49.0 o 699
2005-12-05 05:12:31 C 02 19 57.97 -00 20 31.8 o 699
2005-12-05 05:46:43 C 02 19 57.50 -00 20 12.0 o 699
2005-12-05 06:20:55 C 02 19 56.86 -00 19 55.5 o 699
2005-12-06 04:29:08 C 02 19 42.09 -00 07 57.7 r 703
2005-12-06 04:39:56 C 02 19 41.95 -00 07 52.3 r 703
2005-12-06 04:50:44 C 02 19 41.77 -00 07 46.2 r 703
2005-12-06 05:01:31 C 02 19 41.66 -00 07 40.8 r 703
2007-02-26 11:27:10 C 16 14 08.26 -09 46 17.0 o 691
2007-02-26 11:50:17 C 16 14 11.69 -09 46 20.2 o 691
2007-11-11 07:54:21 C 05 30 24.97 +11 09 57.7 20.0 c 704
2007-11-11 08:12:14 C 05 30 23.73 +11 09 57.8 20.2 c 704
2007-11-11 08:30:15 C 05 30 22.40 +11 09 57.4 20.4 c 704
2007-11-11 08:48:10 C 05 30 21.19 +11 09 56.6 20.0 c 704
2010-01-04 02:36:10 C 05 35 46.58 +18 26 41.1 o 691
2010-01-04 03:14:32 C 05 35 44.12 +18 26 48.1 o 691
2010-01-04 03:52:53 C 05 35 41.60 +18 26 54.4 o 691
2010-01-09 04:17:23 C 05 28 32.37 +18 46 40.9 20.6 c H12
2010-01-09 04:38:02 C 05 28 31.23 +18 46 44.3 20.6 c H12
2010-01-09 04:58:21 C 05 28 29.90 +18 46 47.5 20.6 c H12
2010-01-12 03:24:40 C 05 24 48.47 +18 58 15.0 20.7 c H12
2010-01-12 03:44:52 C 05 24 47.46 +18 58 18.0 20.7 c H12
2010-01-12 04:05:04 C 05 24 46.26 +18 58 21.3 20.7 c H12
2010-01-16 02:02:49 C 05 20 27.23 +19 13 29.6 o 691
2010-01-16 02:26:57 C 05 20 26.23 +19 13 32.8 o 691
2011-12-30 04:46:19 C 07 10 27.54 +19 40 04.2 o 691
2011-12-30 05:11:52 C 07 10 25.63 +19 40 11.5 o 691
2011-12-30 05:37:26 C 07 10 23.69 +19 40 18.8 o 691
2013-12-24 09:12:32 C 08 33 09.09 +18 07 30.6 q G96
2013-12-24 09:28:28 C 08 33 08.40 +18 07 35.5 q G96
2013-12-24 09:44:22 C 08 33 07.64 +18 07 40.2 q G96
2013-12-24 10:00:18 C 08 33 06.95 +18 07 45.1 q G96
2013-12-31 07:00:15 C 08 24 46.92 +18 58 18.3 o 691
2013-12-31 07:30:05 C 08 24 45.23 +18 58 28.3 o 691
2013-12-31 07:55:37 C 08 24 43.74 +18 58 36.5 o 691
2014-01-01 10:11:53 C 08 23 14.166 +19 07 14.29 L F51
2014-01-01 10:51:58 C 08 23 11.768 +19 07 27.69 L F51
2014-01-04 06:55:09 C 08 19 08.02 +19 30 17.0 o 691
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)