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
2005-04-17 22:40:24 C 12 54 54.17 +24 27 24.3 r 084
2005-04-17 22:44:35 C 12 54 53.87 +24 27 28.4 r 084
2005-04-18 20:37:50 C 12 53 04.64 +24 50 28.1 c A48
2005-04-18 20:41:53 C 12 53 04.28 +24 50 32.2 c A48
2005-04-18 20:59:34 C 12 53 02.69 +24 50 50.6 c A48
2005-04-18 21:03:19 C 12 53 02.37 +24 50 54.6 c A48
2005-04-18 22:36:02 C 12 52 53.70 +24 52 24.4 r 084
2005-04-18 22:40:13 C 12 52 53.32 +24 52 28.9 r 084
2005-04-22 19:32:19 C 12 44 53.02 +26 24 40.1 o 151
2005-04-22 19:38:05 C 12 44 52.47 +26 24 46.0 o 151
2005-04-22 19:39:48 C 12 44 52.31 +26 24 47.8 o 151
2005-04-22 19:42:10 C 12 44 52.05 +26 24 50.4 o 151
2005-04-24 22:49:54 C 12 40 19.00 +27 11 50.7 r 170
2005-04-24 22:51:07 C 12 40 18.89 +27 11 51.8 r 170
2005-04-24 22:51:43 C 12 40 18.83 +27 11 52.3 r 170
2005-04-24 22:55:24 C 12 40 18.47 +27 11 55.6 r 170
2005-04-25 21:47:50 C 12 38 15.66 +27 31 51.0 r 084
2005-04-25 21:52:00 C 12 38 15.20 +27 31 54.6 r 084
2005-04-26 20:11:42 C 12 36 16.08 +27 51 01.0 r A06
2005-04-26 20:19:33 C 12 36 15.41 +27 51 08.4 r A06
2005-04-26 20:22:44 C 12 36 14.79 +27 51 09.7 r A30
2005-04-26 20:23:31 C 12 36 14.72 +27 51 10.3 r A30
2005-04-26 20:24:22 C 12 36 14.64 +27 51 11.1 r A30
2005-04-26 20:26:48 C 12 36 14.41 +27 51 13.2 r A30
2005-04-26 20:27:42 C 12 36 14.31 +27 51 14.0 r A30
2005-04-26 21:20:07 C 12 36 09.32 +27 51 58.1 r 203
2005-04-26 22:48:28 C 12 36 00.59 +27 53 04.8 r 084
2005-04-26 22:49:24 C 12 36 00.75 +27 53 12.5 r 203
2005-04-26 22:52:39 C 12 36 00.22 +27 53 07.8 r 084
2005-04-30 06:10:17 C 12 28 52.17 +28 55 41.5 r 703
2005-04-30 06:22:34 C 12 28 50.98 +28 55 50.5 r 703
2005-04-30 06:34:18 C 12 28 49.83 +28 55 58.9 r 703
2005-04-30 06:45:58 C 12 28 48.61 +28 56 05.2 r 703
2005-04-30 21:09:06 C 12 27 31.81 +29 06 30.1 c A48
2005-04-30 21:17:13 C 12 27 31.03 +29 06 36.0 c A48
2005-04-30 21:25:19 C 12 27 30.27 +29 06 41.6 c A48
2005-04-30 21:30:23 C 12 27 29.78 +29 06 45.2 c A48
2005-04-30 22:34:05 C 12 27 23.84 +29 07 32.5 r A06
2005-04-30 22:36:45 C 12 27 23.59 +29 07 33.9 r A06
2005-04-30 22:39:25 C 12 27 23.34 +29 07 35.5 r A06
2005-04-30 23:56:50 C 12 27 15.70 +29 08 28.1 d A56
2005-05-01 00:04:11 C 12 27 15.03 +29 08 33.4 d A56
2005-05-01 00:18:47 C 12 27 13.63 +29 08 42.9 d A56
2005-05-01 00:27:51 C 12 27 12.81 +29 08 49.7 d A56
2005-05-01 21:00:03 C 12 25 23.58 +29 23 16.7 c A53
2005-05-01 21:10:35 C 12 25 22.56 +29 23 22.4 c A53
2005-05-01 21:28:32 C 12 25 20.82 +29 23 35.7 c A53
2005-05-06 20:12:48 C 12 14 53.56 +30 36 05.3 r A06
2005-05-06 20:15:15 C 12 14 53.31 +30 36 06.3 r A06
2005-05-06 20:17:42 C 12 14 53.06 +30 36 07.2 r A06
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)