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
2005-09-28 09:06:46 C 04 19 00.87 -05 49 19.6 17.7 c 704
2005-09-28 09:37:14 C 04 18 58.55 -05 49 28.6 17.9 c 704
2005-09-28 09:52:26 C 04 18 57.38 -05 49 33.5 17.8 c 704
2005-10-08 09:21:29 C 03 59 23.77 -06 48 46.7 o 699
2005-10-08 09:31:39 C 03 59 22.70 -06 48 49.1 r 703
2005-10-08 09:41:48 C 03 59 21.73 -06 48 49.7 r 703
2005-10-08 09:51:46 C 03 59 20.72 -06 48 51.6 r 703
2005-10-08 10:01:44 C 03 59 19.78 -06 48 53.7 r 703
2005-10-08 10:03:37 C 03 59 19.84 -06 48 54.7 o 699
2005-10-08 11:27:52 C 03 59 11.40 -06 49 09.4 o 699
2005-10-09 01:03:53 C 03 57 56.68 -06 51 38.9 o A32
2005-10-09 01:54:10 C 03 57 51.55 -06 51 48.1 r 084
2005-10-11 00:45:44 C 03 53 26.58 -06 58 58.8 o A32
2005-10-11 00:52:59 C 03 53 25.86 -06 58 59.9 o A32
2005-10-11 01:17:12 C 03 53 23.42 -06 59 02.4 o A32
2005-10-12 02:42:02 C 03 50 55.58 -07 02 18.5 r 084
2005-10-13 01:47:52 C 03 48 40.19 -07 04 51.1 r 084
2005-10-14 05:40:30 C 03 45 55.31 -07 06 49.3 o 808
2005-10-14 05:53:30 C 03 45 53.96 -07 06 50.3 o 808
2005-10-14 06:05:30 C 03 45 52.80 -07 06 52.8 o 808
2005-10-17 05:10:30 C 03 38 43.46 -07 10 34.7 o 808
2005-10-17 05:23:40 C 03 38 42.01 -07 10 34.0 o 808
2005-10-17 05:34:29 C 03 38 40.73 -07 10 36.4 o 808
2005-10-17 05:46:30 C 03 38 39.64 -07 10 33.9 o 808
2005-10-19 00:55:00 C 03 34 14.87 -07 11 20.1 r 084
2005-10-24 09:57:46 C 03 21 03.78 -07 02 52.0 r 703
2005-10-24 10:08:22 C 03 21 02.62 -07 02 50.8 r 703
2005-10-24 10:19:51 C 03 21 01.44 -07 02 49.4 r 703
2005-10-24 10:30:38 C 03 21 00.25 -07 02 48.1 r 703
2005-10-27 23:25:50 C 03 12 32.12 -06 49 57.2 o 084
2005-10-30 07:47:38 C 03 07 05.58 -06 38 06.3 o 699
2005-10-30 08:25:42 C 03 07 01.78 -06 37 57.1 o 699
2005-10-30 08:53:17 C 03 06 59.04 -06 37 50.6 r 703
2005-10-30 09:02:39 C 03 06 58.06 -06 37 48.2 r 703
2005-10-30 09:12:05 C 03 06 57.16 -06 37 45.9 r 703
2005-10-30 09:21:29 C 03 06 56.19 -06 37 44.0 r 703
2005-10-30 09:30:54 C 03 06 55.29 -06 37 42.3 o 699
2005-10-30 10:09:35 C 03 06 51.43 -06 37 32.7 o 699
2005-10-31 09:51:21 C 03 04 37.80 -06 31 50.4 o 644
2005-10-31 10:23:06 C 03 04 34.71 -06 31 42.1 o 644
2005-10-31 10:54:21 C 03 04 31.68 -06 31 34.3 o 644
2005-11-01 06:06:31 C 03 02 45.09 -06 26 15.6 c 844
2005-11-01 06:27:38 C 03 02 43.07 -06 26 09.3 c 844
2005-11-01 06:49:18 C 03 02 41.03 -06 26 04.0 c 844
2005-11-01 23:16:39 C 03 01 11.51 -06 22 03.6 o 084
2005-11-03 05:57:27 C 02 58 26.41 -06 12 49.6 c 844
2005-11-03 06:08:53 C 02 58 25.42 -06 12 46.7 c 844
2005-11-03 06:22:13 C 02 58 24.10 -06 12 39.3 c 844
2005-11-03 06:33:54 C 02 58 22.98 -06 12 37.1 c 844
2005-11-03 06:48:42 C 02 58 22.69 -06 12 53.8 r 703
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)