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
2020-11-08 14:14:13 S 23 10 09.31 -24 59 06.8 L C51
2020-11-08 17:22:21 S 23 10 36.37 -24 54 18.0 L C51
2020-11-08 23:38:59 S 23 11 30.072 -24 44 39.26 L C51
2020-11-09 18:29:04 S 23 14 09.163 -24 16 01.99 L C51
2020-11-09 21:37:23 S 23 14 35.542 -24 11 19.00 L C51
2020-11-10 07:14:22 C 23 15 54.94 -23 56 58.0 V T08
2020-11-10 07:19:00 C 23 15 55.58 -23 56 51.1 V T08
2020-11-10 07:26:58 C 23 15 56.63 -23 56 38.9 V T08
2020-11-10 07:44:14 C 23 15 58.92 -23 56 12.9 V T08
2020-11-11 22:16:35 S 23 21 10.483 -22 58 50.63 L C51
2020-11-13 02:31:05 S 23 24 50.772 -22 17 40.70 L C51
2020-11-13 05:39:57 S 23 25 14.986 -22 13 08.22 L C51
2020-11-13 18:13:24 S 23 26 50.671 -21 55 06.13 L C51
2020-11-13 21:21:43 S 23 27 14.405 -21 50 36.28 L C51
2020-11-14 09:54:59 S 23 28 48.631 -21 32 43.04 L C51
2020-11-17 03:29:07 C 23 36 44.09 -20 01 42.8 V 703
2020-11-17 03:36:46 C 23 36 44.85 -20 01 31.4 V 703
2020-11-17 03:44:25 C 23 36 45.78 -20 01 21.3 V 703
2020-11-17 03:52:04 C 23 36 46.61 -20 01 09.7 V 703
2020-11-20 03:30:02 C 23 44 56.55 -18 25 28.8 V 703
2020-11-20 03:37:37 C 23 44 57.34 -18 25 18.9 V 703
2020-11-20 03:45:12 C 23 44 58.19 -18 25 10.8 V 703
2020-11-20 03:52:47 C 23 44 59.05 -18 24 59.8 V 703
2020-12-06 06:08:04 C 00 23 00.997 -10 51 59.84 U F52
2020-12-06 06:24:53 C 00 23 02.435 -10 51 42.16 U F52
2020-12-06 06:41:38 C 00 23 03.887 -10 51 24.54 U F52
2020-12-06 06:58:25 C 00 23 05.338 -10 51 06.70 U F52
2020-12-10 05:01:33 C 00 31 20.726 -09 14 28.84 U F52
2020-12-10 05:18:10 C 00 31 22.115 -09 14 12.24 U F52
2020-12-10 05:34:46 C 00 31 23.501 -09 13 55.55 U F52
2020-12-10 05:51:24 C 00 31 24.888 -09 13 38.96 U F52
2021-01-04 05:21:29 C 01 20 03.576 -00 27 23.70 U F51
2021-01-04 05:37:33 C 01 20 04.789 -00 27 11.42 U F51
2021-01-04 05:53:35 C 01 20 06.013 -00 26 59.16 U F51
2021-01-12 02:05:56 C 01 34 42.11 +01 52 56.8 V G96
2021-01-12 02:14:03 C 01 34 42.76 +01 53 01.7 V G96
2021-01-12 02:22:09 C 01 34 43.37 +01 53 07.4 V G96
2021-01-12 02:30:17 C 01 34 44.00 +01 53 13.7 V G96
2021-01-12 05:22:23 C 01 34 57.302 +01 55 18.20 U F51
2021-01-12 05:55:58 C 01 34 59.843 +01 55 42.36 U F51
2021-01-12 06:12:51 C 01 35 01.147 +01 55 54.57 U F51
2022-01-08 12:28:50 C 13 00 19.47 +00 37 09.1 V G96
2022-01-08 12:36:21 C 13 00 19.99 +00 37 07.9 V G96
2022-01-08 12:43:51 C 13 00 20.56 +00 37 06.7 V G96
2022-01-08 12:51:20 C 13 00 21.03 +00 37 05.3 V G96
2022-02-02 13:07:46 C 13 40 51.887 -00 24 20.57 U F52
2022-02-02 13:22:21 C 13 40 52.812 -00 24 20.57 U F52
2022-02-02 13:36:57 C 13 40 53.742 -00 24 20.29 U F52
2022-02-12 14:22:48 C 13 56 16.619 -00 11 56.09 U F52
2022-02-12 14:41:18 C 13 56 17.729 -00 11 54.08 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)