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
2020-01-19 14:03:41 C 11 55 25.822 +07 52 44.89 U F52
2020-01-19 14:20:49 C 11 55 26.075 +07 52 47.87 U F52
2020-01-19 14:37:58 C 11 55 26.309 +07 52 51.40 U F52
2020-01-23 14:04:39 C 11 56 48.020 +08 14 35.80 U F52
2020-01-23 14:22:05 C 11 56 48.171 +08 14 40.22 U F52
2020-01-23 14:39:27 C 11 56 48.350 +08 14 44.57 U F52
2020-01-23 14:56:43 C 11 56 48.508 +08 14 49.06 U F52
2020-01-26 11:00:19 C 11 57 26.68 +08 33 36.4 V G96
2020-01-26 11:07:42 C 11 57 26.70 +08 33 38.6 V G96
2020-01-26 11:33:38 C 11 57 26.87 +08 33 45.8 V G96
2020-01-26 11:41:02 C 11 57 26.87 +08 33 48.2 V G96
2020-02-03 07:35:25 C 11 57 36.91 +09 40 50.8 V G96
2020-02-03 07:50:40 C 11 57 36.78 +09 40 57.4 V G96
2020-02-03 07:59:09 C 11 57 36.73 +09 41 00.9 V G96
2020-02-03 08:05:53 C 11 57 36.63 +09 41 03.6 V G96
2020-02-15 10:31:19 C 11 52 37.33 +12 09 54.0 V G96
2020-02-15 10:38:43 C 11 52 37.07 +12 09 58.4 V G96
2020-02-15 10:46:06 C 11 52 36.85 +12 10 02.7 V G96
2020-02-15 10:53:31 C 11 52 36.63 +12 10 07.4 V G96
2020-02-22 22:36:12 C 11 45 57.96 +14 08 00.0 V C95
2020-02-22 22:45:16 C 11 45 57.55 +14 08 06.2 V C95
2020-02-26 08:04:43 C 11 42 01.65 +15 06 33.4 V 703
2020-02-26 08:12:15 C 11 42 01.20 +15 06 38.7 V 703
2020-02-26 08:19:48 C 11 42 00.89 +15 06 43.0 V 703
2020-02-26 08:27:23 C 11 42 00.44 +15 06 49.8 V 703
2020-02-26 16:21:51 C 11 41 35.87 +15 12 38.1 q D29
2020-02-26 16:21:51 C 11 41 35.89 +15 12 38.2 q D29
2020-02-26 16:42:13 C 11 41 34.76 +15 12 53.1 q D29
2020-02-26 16:42:13 C 11 41 34.78 +15 12 53.2 q D29
2020-02-26 17:02:35 C 11 41 33.65 +15 13 08.4 q D29
2020-02-26 17:02:35 C 11 41 33.67 +15 13 08.5 q D29
2020-02-26 17:14:19 S 11 42 19.308 +15 14 30.66 V C57
2020-02-26 17:14:19 s 1 -122975.35 1 +389195.18 2030.0 C57
2020-02-26 17:44:19 S 11 42 17.381 +15 14 53.81 V C57
2020-02-26 17:44:19 s 1 -123963.28 2 +388740.35 1290.0 C57
2020-02-26 19:44:19 S 11 42 10.267 +15 16 24.38 V C57
2020-02-26 19:44:19 s 1 -127892.55 0 +386846.55 3530.0 C57
2020-02-26 22:14:19 S 11 42 02.280 +15 18 22.43 V C57
2020-02-26 22:14:19 s 1 -132751.99 2 +384311.80 1240.0 C57
2020-02-27 05:14:19 S 11 41 38.868 +15 23 41.17 V C57
2020-02-27 05:14:19 s 1 -146027.68 0 +376224.45 1260.0 C57
2020-02-27 05:58:35 C 11 40 52.94 +15 22 40.0 U I41
2020-02-27 06:44:19 S 11 41 33.778 +15 24 47.66 V C57
2020-02-27 06:44:19 s 1 -148804.78 8 +374301.51 3910.0 C57
2020-02-27 07:31:27 C 11 40 47.73 +15 23 49.2 U I41
2020-02-27 08:29:53 C 11 40 44.43 +15 24 32.9 U I41
2020-02-27 09:44:19 S 11 41 23.770 +15 27 12.74 V C57
2020-02-27 09:44:19 s 1 -154282.43 2 +370254.23 9860.0 C57
2020-02-27 10:43:26 C 11 40 36.91 +15 26 11.7 U I41
2020-02-27 10:44:19 S 11 41 20.609 +15 27 51.98 V C57
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)