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
2020-02-27 10:44:19 s 1 -156084.90 5 +368845.41 2420.0 C57
2020-02-27 10:44:47 C 11 40 36.82 +15 26 12.8 U I41
2020-02-27 22:14:19 S 11 40 40.550 +15 36 39.13 V C57
2020-02-27 22:14:19 s 1 -175894.91 4 +350488.18 6950.0 C57
2020-02-28 01:14:19 S 11 40 30.461 +15 38 53.70 V C57
2020-02-28 01:14:19 s 1 -180759.89 9 +345043.36 6420.0 C57
2020-03-01 02:44:19 S 11 37 25.087 +16 16 47.39 V C57
2020-03-01 02:44:19 s 1 -234590.07 9 +214340.02 4790.0 C57
2020-03-01 17:14:19 S 11 36 26.525 +16 27 52.02 V C57
2020-03-01 17:14:19 s 1 -236030.78 5 +160553.18 6680.0 C57
2020-03-01 17:44:19 S 11 36 24.466 +16 28 10.78 V C57
2020-03-01 17:44:19 s 1 -235905.91 7 +158565.86 4610.0 C57
2020-03-01 19:44:19 S 11 36 15.977 +16 29 46.93 V C57
2020-03-01 19:44:19 s 1 -235273.72 0 +150527.60 2650.0 C57
2020-03-01 21:44:19 S 11 36 08.131 +16 31 13.58 V C57
2020-03-01 21:44:19 s 1 -234421.00 8 +142346.95 410.0 C57
2020-03-02 09:36:35 C 11 35 09.54 +16 37 32.9 V 703
2020-03-02 09:44:07 C 11 35 09.11 +16 37 38.0 V 703
2020-03-02 09:44:19 S 11 35 17.446 +16 40 23.41 V C57
2020-03-02 09:44:19 s 1 -223956.60 3 +90311.358 3310.0 C57
2020-03-02 09:51:40 C 11 35 08.63 +16 37 44.1 V 703
2020-03-02 09:59:11 C 11 35 08.03 +16 37 49.6 V 703
2020-03-02 11:14:19 S 11 35 11.131 +16 41 22.31 V C57
2020-03-02 11:14:19 s 1 -221904.00 9 +83462.112 8640.0 C57
2020-03-02 11:44:19 S 11 35 09.089 +16 41 50.75 V C57
2020-03-02 11:44:19 s 1 -221177.79 4 +81162.873 7980.0 C57
2020-03-04 18:19:32 C 11 31 35.32 +17 20 44.9 q D29
2020-03-04 18:39:54 C 11 31 33.81 +17 21 00.8 q D29
2020-03-05 05:23:20 C 11 30 52.58 +17 29 11.5 V G96
2020-03-05 05:31:23 C 11 30 52.05 +17 29 17.7 V G96
2020-03-05 05:39:27 C 11 30 51.48 +17 29 23.9 V G96
2020-03-05 05:47:31 C 11 30 50.94 +17 29 30.0 V G96
2020-03-05 08:56:41 C 11 30 38.52 +17 31 57.4 V T08
2020-03-05 09:02:15 C 11 30 38.13 +17 32 01.4 V T08
2020-03-05 09:17:11 C 11 30 37.18 +17 32 12.5 V T08
2020-03-05 09:33:06 C 11 30 36.04 +17 32 24.8 V T08
2020-03-11 12:14:19 S 11 21 13.174 +19 24 05.76 V C57
2020-03-11 12:14:19 s 1 -68894.456 0 +398343.48 9320.0 C57
2020-03-11 14:44:19 S 11 21 01.750 +19 26 06.58 V C57
2020-03-11 14:44:19 s 1 -74319.004 0 +397476.47 3550.0 C57
2020-03-12 00:44:19 S 11 20 16.716 +19 33 45.50 V C57
2020-03-12 00:44:19 s 1 -95614.662 0 +392060.78 9350.0 C57
2020-03-12 01:14:19 S 11 20 14.165 +19 34 08.54 V C57
2020-03-12 01:14:19 s 1 -96660.624 0 +391708.53 7080.0 C57
2020-03-12 02:14:19 S 11 20 09.394 +19 35 00.64 V C57
2020-03-12 02:14:19 s 1 -98746.679 0 +390980.82 7140.0 C57
2020-03-12 03:14:19 S 11 20 05.021 +19 35 44.16 V C57
2020-03-12 03:14:19 s 1 -100824.76 7 +390222.17 800.0 C57
2020-03-12 16:14:19 S 11 19 04.783 +19 45 32.80 V C57
2020-03-12 16:14:19 s 1 -127033.94 2 +377548.37 810.0 C57
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)