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
2003-03-20 00:32:34 C 10 26 35.35 +23 14 49.9 941
2003-03-20 00:35:12 C 10 26 35.16 +23 14 50.6 941
2003-03-20 00:37:50 C 10 26 34.96 +23 14 51.8 941
2003-03-20 00:45:44 C 10 26 34.27 +23 14 55.2 941
2003-03-20 05:06:10 C 10 26 16.70 +23 16 54.6 c 673
2003-03-20 05:11:19 C 10 26 16.36 +23 16 56.8 c 673
2003-03-20 05:16:09 C 10 26 16.00 +23 16 59.5 c 673
2003-03-20 05:21:00 C 10 26 15.64 +23 17 02.0 c 673
2003-03-24 03:09:19 C 10 19 55.85 +23 56 04.8 c 644
2003-03-24 03:38:00 C 10 19 53.93 +23 56 16.1 c 644
2003-03-24 21:30:02 C 10 18 44.61 +24 02 50.4 c 240
2003-03-24 21:33:39 C 10 18 44.38 +24 02 51.0 c 240
2003-03-24 21:39:03 C 10 18 44.04 +24 02 51.9 c 240
2003-03-26 05:58:21 C 10 16 42.49 +24 14 12.9 19.4 c 704
2003-03-26 06:15:04 C 10 16 41.38 +24 14 19.0 19.8 c 704
2003-03-26 06:31:49 C 10 16 40.38 +24 14 24.7 19.4 c 704
2003-03-28 22:12:59 C 10 12 54.31 +24 34 06.2 d 941
2003-03-28 22:15:41 C 10 12 54.15 +24 34 06.8 d 941
2003-03-28 22:23:51 C 10 12 53.62 +24 34 08.8 d 941
2003-03-28 22:26:30 C 10 12 53.46 +24 34 09.2 d 941
2003-03-28 22:29:09 C 10 12 53.28 +24 34 09.9 d 941
2003-04-02 07:00:04 C 10 07 24.18 +24 59 11.0 c 711
2003-04-02 07:26:29 C 10 07 23.05 +24 59 16.0 c 711
2003-04-02 07:41:48 C 10 07 22.17 +24 59 18.7 c 711
2003-04-23 09:43:23 C 09 55 24.75 +25 08 14.3 e 413
2003-04-23 09:48:22 C 09 55 24.74 +25 08 13.6 e 413
2003-04-23 09:53:21 C 09 55 24.73 +25 08 13.0 e 413
2003-07-20 08:51:06 C 12 11 43.42 +05 28 32.3 c 413
2003-07-20 08:59:05 C 12 11 44.27 +05 28 24.6 c 413
2003-08-19 08:46:13 C 13 40 55.15 -08 33 11.6 r 413
2003-08-19 09:00:06 C 13 40 57.11 -08 33 30.3 r 413
2003-10-19 10:30:13 C 19 36 58.66 -35 45 53.4 c 474
2003-10-19 10:38:14 C 19 37 01.31 -35 45 50.1 c 474
2003-10-19 10:45:25 C 19 37 03.52 -35 45 46.8 c 474
2005-01-18 11:55:52 C 12 54 45.57 +02 10 45.8 d 291
2005-01-18 12:08:53 C 12 54 46.20 +02 10 43.1 d 291
2005-01-19 12:06:50 C 12 56 03.56 +02 10 03.3 c 673
2005-01-19 12:12:19 C 12 56 03.85 +02 10 03.1 c 673
2005-01-19 12:23:30 C 12 56 04.42 +02 10 02.8 c 673
2005-01-19 12:31:09 C 12 56 04.79 +02 10 02.7 c 673
2005-01-20 12:58:39 C 12 57 22.78 +02 09 34.2 c 673
2005-01-20 13:07:30 C 12 57 23.30 +02 09 34.0 c 673
2005-01-20 13:16:20 C 12 57 23.76 +02 09 33.7 c 673
2005-01-20 13:25:20 C 12 57 24.25 +02 09 33.5 c 673
2005-03-07 00:25:50 C 13 34 46.50 +07 22 43.4 c A41
2005-03-07 01:07:06 C 13 34 46.62 +07 23 13.3 c A41
2005-03-07 01:47:48 C 13 34 46.76 +07 23 41.8 c A41
2005-03-18 09:24:46 C 13 33 20.10 +11 03 03.9 r 703
2005-03-18 09:38:40 C 13 33 19.79 +11 03 18.0 r 703
2005-03-18 09:52:31 C 13 33 19.52 +11 03 28.5 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)