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
2022-05-25 00:11:27 C 17 01 45.64 +69 33 58.6 V 094
2022-05-25 23:44:57 C 17 23 10.84 +71 56 46.8 V 094
2022-05-25 23:45:29 C 17 23 11.25 +71 56 49.5 V 094
2022-05-26 00:23:47 C 17 23 49.15 +72 00 35.0 V 094
2022-05-26 00:24:19 C 17 23 49.64 +72 00 38.0 V 094
2022-05-26 10:26:41 C 17 35 14.230 +73 00 13.25 V T08
2022-05-26 10:31:20 C 17 35 19.339 +73 00 40.57 V T08
2022-05-26 10:35:58 C 17 35 24.550 +73 01 08.08 V T08
2022-05-26 10:44:36 C 17 35 34.068 +73 01 58.91 V T08
2022-05-26 20:11:17 C 17 47 37.31 +73 55 02.5 V L99
2022-05-26 20:13:36 C 17 47 40.44 +73 55 15.2 V L99
2022-05-26 20:15:46 C 17 47 43.27 +73 55 28.1 V L99
2022-05-28 16:46:45 C 19 08 08.08 +77 28 37.7 V 186
2022-05-28 16:51:55 C 19 08 20.26 +77 28 59.9 V 186
2022-05-28 21:12:05 C 19 18 23.14 +77 44 59.9 V 186
2022-05-28 21:18:17 C 19 18 37.55 +77 45 20.3 V 186
2022-05-29 17:46:37 C 20 13 11.44 +78 34 05.4 V 186
2022-05-29 21:02:53 C 20 22 23.09 +78 39 11.2 V 186
2022-05-29 21:08:03 C 20 22 37.80 +78 39 18.3 V 186
2022-05-30 13:21:17 C 21 10 16.030 +78 43 59.30 V T08
2022-05-30 13:25:55 C 21 10 29.222 +78 43 57.14 V T08
2022-05-30 13:33:53 C 21 10 51.775 +78 43 53.15 V T08
2022-05-30 13:53:44 C 21 11 47.940 +78 43 42.49 V T08
2022-05-30 14:15:38 C 21 12 49.769 +78 43 29.10 V T08
2022-05-30 14:22:11 C 21 13 08.390 +78 43 24.53 V T08
2022-05-30 14:29:30 C 21 13 29.030 +78 43 19.92 V T08
2022-05-30 14:37:28 C 21 13 51.437 +78 43 14.34 V T08
2022-05-30 17:03:21 C 21 21 20.36 +78 39 07.9 V 186
2022-05-30 20:59:40 C 21 32 45.90 +78 35 23.4 V 186
2022-05-30 21:04:50 C 21 33 00.85 +78 35 17.2 V 186
2022-05-30 21:10:01 C 21 33 15.45 +78 35 10.7 V 186
2022-06-03 12:22:53 C 00 27 56.899 +71 33 47.77 V T08
2022-06-03 12:30:55 C 00 28 05.974 +71 32 55.68 V T08
2022-06-03 12:50:19 C 00 28 27.770 +71 30 49.64 V T08
2022-07-29 14:12:49 C 03 54 40.710 +10 01 07.33 U F52
2022-07-29 14:20:10 C 03 54 41.245 +10 01 04.61 U F52
2022-07-29 14:27:30 C 03 54 41.769 +10 01 01.97 U F52
2022-07-29 14:34:49 C 03 54 42.294 +10 00 59.28 U F52
2022-08-29 13:21:52 C 04 42 12.180 +06 48 24.91 V T05
2022-08-29 13:26:26 C 04 42 12.391 +06 48 24.41 V T05
2022-08-29 14:04:30 C 04 42 13.975 +06 48 16.24 V T05
2022-08-29 14:29:39 C 04 42 15.065 +06 48 10.98 V T05
2022-09-02 13:55:12 C 04 46 20.275 +06 26 12.71 U F51
2022-09-02 14:14:02 C 04 46 20.940 +06 26 08.43 U F51
2022-09-02 14:43:27 C 04 46 21.976 +06 26 01.68 U F51
2022-09-02 15:02:18 C 04 46 22.630 +06 25 57.33 U F51
2022-09-03 13:42:17 S 04 47 14.14 +06 20 42.6 L C51
2022-09-03 16:50:03 S 04 47 21.20 +06 20 00.2 L C51
2022-09-03 19:58:01 S 04 47 28.22 +06 19 17.0 L C51
2022-09-04 05:21:19 S 04 47 49.13 +06 17 03.5 L C51
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)