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
2016-03-04 06:00:27 C 08 08 27.402 +25 21 38.59 L F51
2016-03-04 06:18:15 C 08 08 26.694 +25 21 41.36 L F51
2016-03-04 06:36:09 C 08 08 25.999 +25 21 44.21 L F51
2016-03-13 05:57:21 C 08 02 18.698 +25 46 56.27 L F51
2016-03-13 06:13:58 C 08 02 18.334 +25 46 57.65 L F51
2016-03-13 06:30:41 C 08 02 17.972 +25 46 59.06 L F51
2018-01-15 11:22:14 C 10 36 54.024 +13 56 00.59 U F51
2018-01-15 11:39:59 C 10 36 53.607 +13 56 07.08 U F51
2018-01-15 11:57:46 C 10 36 53.199 +13 56 13.77 U F51
2018-01-15 12:15:43 C 10 36 52.775 +13 56 20.33 U F51
2018-01-24 08:15:24 C 10 30 37.50 +15 25 15.3 U G96
2018-01-24 08:22:46 C 10 30 37.24 +15 25 18.7 U G96
2018-01-24 08:30:08 C 10 30 36.96 +15 25 23.0 U G96
2018-02-08 07:44:52 C 10 12 24.07 +18 35 58.7 U 703
2018-02-08 07:52:26 C 10 12 23.61 +18 36 02.6 U 703
2018-02-08 08:00:03 C 10 12 23.13 +18 36 07.0 U 703
2018-02-08 08:07:38 C 10 12 22.63 +18 36 11.3 U 703
2018-02-11 08:31:16 C 10 07 42.77 +19 17 37.0 U 703
2018-02-11 08:46:47 C 10 07 41.75 +19 17 44.1 U 703
2018-02-11 08:54:33 C 10 07 41.30 +19 17 48.1 U 703
2018-03-06 06:39:39 C 09 29 14.337 +23 51 27.16 U F51
2018-03-06 06:55:32 C 09 29 13.277 +23 51 33.01 U F51
2018-03-07 06:55:40 C 09 27 40.74 +24 00 13.1 U 703
2018-03-07 07:03:17 C 09 27 40.18 +24 00 15.1 U 703
2018-03-07 07:10:54 C 09 27 39.63 +24 00 18.3 U 703
2018-03-07 07:18:31 C 09 27 39.24 +24 00 21.1 U 703
2018-03-08 06:28:14 C 09 26 12.704 +24 08 26.00 U F51
2018-03-08 06:47:11 C 09 26 11.487 +24 08 32.69 U F51
2018-03-08 07:06:11 C 09 26 10.266 +24 08 39.20 U F51
2018-03-08 07:25:19 C 09 26 09.036 +24 08 45.89 U F51
2018-03-14 05:07:03 C 09 18 01.11 +24 50 47.3 U G96
2018-03-14 05:14:31 C 09 18 00.69 +24 50 48.8 U G96
2018-03-14 05:21:59 C 09 18 00.27 +24 50 50.7 U G96
2018-03-14 05:29:27 C 09 17 59.87 +24 50 52.7 U G96
2018-03-18 06:00:53 C 09 13 18.741 +25 12 30.01 U F51
2018-03-18 06:18:06 C 09 13 17.928 +25 12 33.56 U F51
2018-03-18 06:35:05 C 09 13 17.131 +25 12 36.97 U F51
2018-03-18 06:52:06 C 09 13 16.324 +25 12 40.39 U F51
2018-03-19 05:54:36 C 09 12 16.108 +25 16 59.50 U F51
2018-03-19 06:10:27 C 09 12 15.398 +25 17 02.49 U F51
2018-03-19 06:26:21 C 09 12 14.678 +25 17 05.50 U F51
2018-03-19 06:42:15 C 09 12 13.960 +25 17 08.36 U F51
2018-06-10 03:47:11 C 10 10 47.97 +18 43 35.0 U G96
2018-06-10 03:55:31 C 10 10 48.75 +18 43 31.5 U G96
2018-06-10 04:03:50 C 10 10 49.39 +18 43 26.8 U G96
2018-06-10 04:12:10 C 10 10 50.07 +18 43 24.0 U G96
2019-12-27 14:28:10 C 11 39 06.572 +07 15 12.83 U F51
2019-12-27 14:46:37 C 11 39 07.267 +07 15 12.49 U F51
2019-12-27 15:05:08 C 11 39 07.989 +07 15 11.28 U F51
2020-01-19 13:46:35 C 11 55 25.552 +07 52 41.31 U F52
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)