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
2005-03-18 10:06:23 C 13 33 19.23 +11 03 42.4 r 703
2005-03-30 01:13:24 C 13 24 46.74 +15 51 22.8 o 084
2005-03-30 20:44:45 C 13 23 54.20 +16 13 19.1 16.9 A70
2005-03-30 20:52:45 C 13 23 53.77 +16 13 26.7 16.9 A70
2005-03-30 21:14:19 C 13 23 52.58 +16 13 52.5 16.8 A70
2005-04-01 00:19:36 C 13 22 34.19 +16 44 37.5 o 084
2005-04-01 00:25:14 C 13 22 33.92 +16 44 43.7 o 084
2005-04-02 09:20:24 C 13 20 52.89 +17 22 35.5 r 703
2005-04-02 09:33:20 C 13 20 52.39 +17 22 46.7 r 703
2005-04-02 09:46:16 C 13 20 51.40 +17 23 05.0 r 703
2005-04-02 09:59:10 C 13 20 50.66 +17 23 19.5 r 703
2005-04-02 20:34:26 C 13 20 18.21 +17 35 25.9 c 046
2005-04-02 20:36:18 C 13 20 18.08 +17 35 29.0 c 046
2005-04-02 20:37:27 C 13 20 17.96 +17 35 30.2 c 046
2005-04-02 20:38:51 C 13 20 17.98 +17 35 32.1 c 046
2005-04-02 20:40:11 C 13 20 17.83 +17 35 33.0 c 046
2005-04-02 20:41:15 C 13 20 17.77 +17 35 34.4 c 046
2005-04-02 20:42:25 C 13 20 17.75 +17 35 35.6 c 046
2005-04-02 20:43:49 C 13 20 17.61 +17 35 37.8 c 046
2005-04-02 20:44:34 C 13 20 17.65 +17 35 39.0 r A31
2005-04-02 20:50:27 C 13 20 17.31 +17 35 45.4 r A31
2005-04-02 21:06:51 C 13 20 16.33 +17 36 05.6 r A31
2005-04-02 23:01:25 C 13 20 09.50 +17 38 12.8 17.0 A70
2005-04-02 23:11:15 C 13 20 08.96 +17 38 25.1 17.9 A70
2005-04-02 23:16:15 C 13 20 08.69 +17 38 30.5 18.0 A70
2005-04-02 23:23:45 C 13 20 08.25 +17 38 38.6 17.3 A70
2005-04-03 22:54:45 C 13 18 50.57 +18 05 56.6 18.1 r 469
2005-04-03 23:04:50 C 13 18 49.89 +18 06 08.8 17.9 r 469
2005-04-03 23:15:00 C 13 18 49.28 +18 06 21.0 18.1 r 469
2005-04-04 00:00:52 C 13 18 46.21 +18 07 10.4 o 084
2005-04-04 00:06:31 C 13 18 45.89 +18 07 17.4 o 084
2005-04-05 00:02:34 C 13 17 22.87 +18 35 06.5 o 084
2005-04-05 00:08:13 C 13 17 22.55 +18 35 13.0 o 084
2005-04-06 23:51:39 C 13 14 26.97 +19 30 53.2 o 084
2005-04-06 23:57:18 C 13 14 26.60 +19 30 59.7 o 084
2005-04-13 09:18:45 C 13 03 39.13 +22 27 57.3 17.7 c 704
2005-04-13 09:35:58 C 13 03 37.75 +22 28 16.4 17.7 c 704
2005-04-13 09:50:05 C 13 03 36.57 +22 28 32.2 17.8 c 704
2005-04-13 10:04:19 C 13 03 35.45 +22 28 47.8 18.1 c 704
2005-04-13 10:18:09 C 13 03 34.33 +22 29 03.3 17.9 c 704
2005-04-14 20:40:05 C 13 00 55.78 +23 07 22.7 r 151
2005-04-14 20:48:15 C 13 00 55.11 +23 07 31.1 r 151
2005-04-14 23:01:07 C 13 00 43.65 +23 09 55.2 o 084
2005-04-14 23:05:46 C 13 00 43.27 +23 09 59.9 o 084
2005-04-16 22:32:55 C 12 56 53.86 +24 01 43.9 r 084
2005-04-16 22:37:05 C 12 56 53.54 +24 01 48.6 r 084
2005-04-17 06:16:54 C 12 56 16.18 +24 10 11.9 r 703
2005-04-17 06:26:10 C 12 56 15.34 +24 10 21.6 r 703
2005-04-17 06:35:26 C 12 56 14.53 +24 10 31.6 r 703
2005-04-17 06:44:44 C 12 56 13.68 +24 10 41.5 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)