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
2020-04-22 08:32:26 C 10 21 45.15 +25 20 27.2 V T08
2020-04-22 08:37:13 C 10 21 45.06 +25 20 26.7 V T08
2020-04-22 08:46:52 C 10 21 44.82 +25 20 25.9 V T08
2020-04-22 09:13:23 C 10 21 44.24 +25 20 23.6 V T08
2020-05-19 04:00:09 C 10 29 19.91 +22 35 59.1 V G96
2020-05-19 04:07:33 C 10 29 20.17 +22 35 55.6 V G96
2020-05-19 04:14:57 C 10 29 20.44 +22 35 52.5 V G96
2020-05-19 04:22:22 C 10 29 20.71 +22 35 49.3 V G96
2020-10-03 05:18:29 C 18 59 56.27 -45 11 12.5 V T05
2020-10-03 05:33:47 C 19 00 03.20 -45 11 11.9 V T05
2020-10-03 05:35:06 C 19 00 03.80 -45 11 12.2 V T05
2020-10-03 05:57:40 C 19 00 14.02 -45 11 11.9 V T05
2020-10-03 05:58:59 C 19 00 14.61 -45 11 12.5 V T05
2020-10-03 06:05:36 C 19 00 17.57 -45 11 12.4 V T05
2020-10-06 07:35:25 C 19 33 48.08 -44 53 27.9 q E89
2020-10-06 07:47:45 C 19 33 53.46 -44 53 21.5 q E89
2020-10-06 07:59:06 C 19 33 58.39 -44 53 15.7 q E89
2020-10-09 06:13:12 C 20 04 20.63 -44 04 40.5 V T08
2020-10-09 06:17:51 C 20 04 22.55 -44 04 36.7 V T08
2020-10-09 06:28:32 C 20 04 26.95 -44 04 26.3 V T08
2020-10-13 21:41:51 C 20 47 45.64 -41 55 47.3 o K95
2020-10-13 21:50:36 C 20 47 48.72 -41 55 35.5 o K95
2020-10-15 06:00:47 C 20 59 09.36 -41 10 18.8 V T05
2020-10-15 06:05:24 C 20 59 10.94 -41 10 12.2 V T05
2020-10-15 06:13:59 C 20 59 13.75 -41 09 59.5 V T05
2020-10-15 06:29:11 C 20 59 18.84 -41 09 36.8 V T05
2020-10-23 06:24:05 C 21 55 56.25 -35 54 52.3 V T05
2020-10-23 06:29:21 C 21 55 57.53 -35 54 43.1 V T05
2020-10-23 06:37:55 C 21 55 59.68 -35 54 28.4 V T05
2020-10-23 07:23:58 C 21 56 10.80 -35 53 07.2 V T05
2020-10-26 20:10:25 S 22 16 02.722 -33 25 13.73 L C51
2020-10-27 05:35:22 S 22 18 05.431 -33 08 48.16 L C51
2020-10-27 11:52:00 S 22 19 26.366 -32 57 57.92 L C51
2020-10-27 15:00:20 S 22 20 06.348 -32 52 28.85 L C51
2020-10-28 03:33:47 S 22 22 44.851 -32 30 44.06 L C51
2020-10-28 12:58:44 S 22 24 41.87 -32 14 28.5 L C51
2020-10-28 14:32:59 S 22 25 01.17 -32 11 45.6 L C51
2020-10-28 16:07:03 S 22 25 20.42 -32 09 03.5 L C51
2020-10-28 16:07:14 S 22 25 20.41 -32 09 03.2 L C51
2020-10-28 17:41:18 S 22 25 39.64 -32 06 21.0 L C51
2020-10-28 19:15:33 S 22 25 58.822 -32 03 37.98 L C51
2020-10-28 20:49:37 S 22 26 18.007 -32 00 56.59 L C51
2020-10-29 03:06:15 S 22 27 34.01 -31 50 07.0 L C51
2020-10-29 04:40:30 S 22 27 52.97 -31 47 25.4 L C51
2020-10-29 06:14:34 S 22 28 11.83 -31 44 43.6 L C51
2020-10-29 06:14:45 S 22 28 11.86 -31 44 43.3 L C51
2020-10-29 07:48:50 S 22 28 30.62 -31 42 01.7 L C51
2020-10-29 09:23:04 S 22 28 49.46 -31 39 19.8 L C51
2020-10-29 15:39:42 S 22 30 04.09 -31 28 33.3 L C51
2020-10-29 17:13:46 S 22 30 22.68 -31 25 52.2 L C51
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)