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
2003-02-09 11:34:38 C 11 25 01.15 +13 31 11.1 21.1 c 608
2003-02-09 11:49:53 C 11 25 00.58 +13 31 20.0 21.2 c 608
2003-02-09 12:04:58 C 11 24 59.99 +13 31 29.1 21.2 c 608
2003-02-10 07:34:13 C 11 24 17.98 +13 42 48.4 c 926
2003-02-10 07:40:31 C 11 24 17.75 +13 42 52.9 c 926
2003-02-10 07:46:58 C 11 24 17.43 +13 42 53.7 c 926
2003-02-11 08:51:04 C 11 23 20.07 +13 57 48.7 d 734
2003-02-11 09:01:55 C 11 23 19.54 +13 57 57.1 d 734
2003-02-11 09:12:42 C 11 23 19.18 +13 58 01.9 d 734
2003-02-19 20:43:33 C 11 13 43.00 +16 08 54.0 c 540
2003-02-19 21:02:03 C 11 13 41.99 +16 09 06.6 c 540
2003-02-22 06:09:23 C 11 10 25.65 +16 48 13.1 c 448
2003-02-22 06:23:16 C 11 10 24.80 +16 48 22.5 c 448
2003-02-22 06:30:29 C 11 10 24.34 +16 48 27.0 c 858
2003-02-22 06:32:02 C 11 10 24.25 +16 48 28.7 c 448
2003-02-22 06:40:55 C 11 10 23.65 +16 48 34.0 c 858
2003-02-22 06:51:25 C 11 10 23.06 +16 48 42.0 c 858
2003-02-22 23:55:14 C 11 09 21.51 +17 00 27.1 c 246
2003-02-22 23:56:31 C 11 09 21.37 +17 00 27.1 c 246
2003-02-22 23:58:11 C 11 09 21.32 +17 00 28.3 c 246
2003-02-23 00:02:45 C 11 09 21.05 +17 00 32.3 c 246
2003-02-23 00:04:13 C 11 09 20.96 +17 00 32.9 c 246
2003-02-23 00:06:44 C 11 09 20.69 +17 00 34.2 c 246
2003-02-23 00:08:11 C 11 09 20.71 +17 00 36.0 c 246
2003-02-25 00:06:40 C 11 06 21.78 +17 33 55.1 c 246
2003-02-25 00:07:57 C 11 06 21.73 +17 33 55.9 c 246
2003-02-25 00:09:12 C 11 06 21.64 +17 33 56.8 c 246
2003-02-25 00:10:41 C 11 06 21.49 +17 33 58.1 c 246
2003-02-25 00:11:55 C 11 06 21.44 +17 33 58.7 c 246
2003-02-25 00:13:12 C 11 06 21.38 +17 34 00.1 c 246
2003-02-26 00:46:16 C 11 04 46.35 +17 51 07.4 c 246
2003-02-26 00:47:26 C 11 04 46.30 +17 51 07.7 c 246
2003-02-26 00:48:53 C 11 04 46.16 +17 51 08.5 c 246
2003-02-26 00:50:11 C 11 04 46.06 +17 51 09.4 c 246
2003-02-26 00:51:27 C 11 04 45.98 +17 51 10.0 c 246
2003-03-03 07:37:00 C 10 56 04.92 +19 19 00.2 18.5 c 704
2003-03-03 08:14:38 C 10 56 02.16 +19 19 25.0 18.8 c 704
2003-03-03 08:33:41 C 10 56 00.76 +19 19 38.1 19.1 c 704
2003-03-04 01:19:35 C 10 54 48.55 +19 30 58.0 c 621
2003-03-04 01:27:40 C 10 54 47.94 +19 31 03.3 c 621
2003-03-04 01:35:43 C 10 54 47.36 +19 31 08.8 c 621
2003-03-04 01:43:48 C 10 54 46.74 +19 31 14.2 c 621
2003-03-04 01:51:54 C 10 54 46.13 +19 31 19.5 c 621
2003-03-06 06:41:36 C 10 50 55.59 +20 06 43.9 c 670
2003-03-06 08:36:23 C 10 50 46.76 +20 07 59.9 c 670
2003-03-07 07:40:30 C 10 49 04.43 +20 23 07.8 c 711
2003-03-07 07:51:45 C 10 49 03.56 +20 23 15.0 c 711
2003-03-07 08:03:01 C 10 49 02.69 +20 23 22.7 c 711
2003-03-20 00:27:18 C 10 26 35.79 +23 14 47.6 941
2003-03-20 00:29:56 C 10 26 35.61 +23 14 48.7 941
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)