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
2005-05-06 21:15:31 C 12 14 47.39 +30 36 36.8 r 203
2005-05-06 22:33:11 C 12 14 40.16 +30 37 17.2 18.3 o 130
2005-05-06 22:37:32 C 12 14 39.74 +30 37 19.6 18.0 o 130
2005-05-06 22:42:06 C 12 14 39.33 +30 37 21.6 18.0 o 130
2005-05-06 22:46:15 C 12 14 38.97 +30 37 23.7 18.4 o 130
2005-05-06 23:14:54 C 12 14 36.35 +30 37 37.9 r 203
2005-05-08 20:08:25 C 12 10 47.90 +31 00 17.6 o 493
2005-05-08 20:09:46 C 12 10 47.77 +31 00 18.3 o 493
2005-05-08 20:11:05 C 12 10 47.65 +31 00 18.9 o 493
2005-05-08 21:31:48 C 12 10 39.86 +31 00 52.3 r 203
2005-05-08 22:46:56 C 12 10 33.02 +31 01 26.8 r 203
2005-05-09 21:48:01 C 12 08 37.30 +31 11 50.8 r 084
2005-05-09 21:52:12 C 12 08 36.98 +31 11 52.7 r 084
2005-05-10 05:55:22 C 12 07 56.26 +31 15 35.9 r H45
2005-05-10 05:57:58 C 12 07 56.06 +31 15 36.2 r H45
2005-05-10 06:02:08 C 12 07 55.68 +31 15 38.4 r H45
2005-05-10 06:05:13 C 12 07 55.38 +31 15 39.9 r H45
2005-05-10 06:07:45 C 12 07 55.15 +31 15 40.7 r H45
2005-05-11 20:13:38 C 12 04 48.69 +31 31 19.9 c 434
2005-05-11 20:16:28 C 12 04 48.39 +31 31 20.8 c 434
2005-05-11 20:19:35 C 12 04 48.19 +31 31 22.0 c 434
2005-05-11 20:23:49 C 12 04 47.75 +31 31 24.1 c 434
2005-05-14 22:14:38 C 11 58 54.44 +31 56 57.6 r 084
2005-05-14 22:18:46 C 11 58 54.09 +31 56 58.7 r 084
2005-05-15 22:46:56 C 11 57 00.61 +32 04 14.5 r 084
2005-05-15 22:51:04 C 11 57 00.31 +32 04 15.9 r 084
2005-05-20 04:21:57 C 11 49 26.53 +32 28 53.2 17.8 c 704
2005-05-20 04:48:51 C 11 49 24.36 +32 28 57.2 18.1 c 704
2005-05-20 05:02:04 C 11 49 23.29 +32 29 00.2 18.2 c 704
2005-05-20 05:15:15 C 11 49 22.17 +32 29 01.9 18.4 c 704
2005-05-29 21:02:17 C 11 32 59.40 +32 57 11.4 c 434
2005-05-29 21:07:14 C 11 32 59.00 +32 57 11.8 c 434
2005-05-31 03:52:28 C 11 30 47.55 +32 59 05.9 18.7 c 704
2005-05-31 04:07:09 C 11 30 46.35 +32 59 05.6 18.6 c 704
2005-05-31 04:22:11 C 11 30 45.09 +32 59 06.1 18.5 c 704
2005-05-31 04:36:53 C 11 30 43.96 +32 59 05.7 19.4 c 704
2005-05-31 04:51:37 C 11 30 42.78 +32 59 06.0 18.8 c 704
2005-06-06 05:44:13 C 11 19 41.70 +33 03 21.2 r 703
2005-06-06 05:58:54 C 11 19 40.47 +33 03 20.7 r 703
2005-06-06 06:13:19 C 11 19 39.21 +33 03 19.6 r 703
2005-06-06 06:27:45 C 11 19 37.95 +33 03 18.8 r 703
2005-09-11 01:35:51 C 04 40 09.35 -03 22 57.6 r 084
2005-09-17 10:01:44 C 04 34 09.57 -04 20 27.3 c 699
2005-09-17 10:43:01 C 04 34 07.40 -04 20 42.5 c 699
2005-09-17 11:22:19 C 04 34 05.41 -04 20 58.0 c 699
2005-09-25 10:20:39 C 04 23 44.52 -05 27 05.6 r 703
2005-09-25 10:26:51 C 04 23 44.19 -05 27 07.6 r 703
2005-09-25 10:33:22 C 04 23 43.65 -05 27 11.4 r 703
2005-09-25 10:39:37 C 04 23 43.22 -05 27 13.5 r 703
2005-09-28 08:50:58 C 04 19 02.07 -05 49 14.3 17.4 c 704
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)