2016 XK18

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6197851000
Semi-major axis (a)2.5689695000 AU
Inclination (i)5.78388000°
Long. of Asc. Node (Ω)270.21599000°
Arg. of Perihelion (ω)184.49550000°
Mean Anomaly (M)57.02549000°
Mean Motion (n)0.2393677600°/day
Perihelion dist (q)0.97676050 AU
Aphelion dist (Q)4.16117850 AU
Orbital Period4.11754560 yr
Physical Parameters
H (abs. magnitude)24.50
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date2026-04-13
RMS Residual0.340″
Uncertainty5
Orbit TypeApollo
MOID0.006157 AU
Observations Used78
Radar Obs Used6
Oppositions1
Arc Total
First Observation Used
Last Observation Used2016-12-21
Observations (81)
Date Type RA Dec Mag Band Observatory
2016-12-15 00:52:03 C 02 40 42.19 +51 05 14.4 q Z21
2016-12-15 01:01:59 C 02 40 58.78 +51 06 10.3 q Z21
2016-12-15 01:11:54 C 02 41 15.37 +51 07 05.6 q Z21
2016-12-15 01:19:50 C 02 41 28.76 +51 07 49.5 q Z21
2016-12-15 01:37:57 C 02 41 59.43 +51 09 28.5 q Z21
2016-12-15 06:36:22 C 02 51 28.48 +51 40 52.2 t 705
2016-12-15 06:37:50 C 02 51 31.36 +51 41 00.9 t 705
2016-12-15 06:39:18 C 02 51 34.03 +51 41 09.1 t 705
2016-12-15 17:56:03 C 03 16 55.96 +52 44 37.4 q C77
2016-12-15 17:59:21 C 03 17 03.72 +52 44 57.3 q C77
2016-12-15 18:06:10 C 03 17 19.53 +52 45 37.8 q C77
2016-12-15 18:09:44 C 03 17 27.82 +52 45 59.0 q C77
2016-12-17 04:37:19 C 05 08 12.41 +53 27 42.4 o 926
2016-12-17 04:39:00 C 05 08 18.86 +53 27 33.9 o 926
2016-12-18 03:24:38 C 06 39 43.24 +48 35 51.7 U 204
2016-12-18 03:26:23 C 06 39 50.01 +48 35 14.7 U 204
2016-12-18 03:27:58 C 06 39 56.08 +48 34 41.3 U 204
2016-12-18 03:28:46 C 06 39 59.13 +48 34 24.6 U 204
2016-12-18 03:29:33 C 06 40 02.18 +48 34 08.0 U 204
2016-12-18 09:50:52 C 07 04 48.63 +46 16 45.7 o 926
2016-12-18 09:51:31 C 07 04 50.97 +46 16 29.6 o 926
2016-12-18 09:52:11 C 07 04 53.29 +46 16 13.4 o 926
2016-12-18 11:58:23 C 07 12 20.90 +45 22 37.6 o 926
2016-12-18 11:59:02 C 07 12 23.13 +45 22 20.2 o 926
2016-12-18 11:59:41 C 07 12 25.47 +45 22 02.5 o 926
2016-12-20 11:37:02 C 09 16 29.47 +21 12 25.8 q W25
2016-12-20 11:40:50 C 09 16 35.48 +21 10 34.4 q W25
2016-12-21 23:18:25 C 10 01 44.93 +07 01 51.5 q 246
2016-12-21 23:18:49 C 10 01 45.34 +07 01 44.1 q 246
2016-12-21 23:19:07 C 10 01 45.59 +07 01 37.7 q 246
2016-12-21 23:19:25 C 10 01 45.82 +07 01 32.6 q 246
Radar Observations (6)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2016-12-16 01:20:00 344958.107 5 Hz 8560 -14 -14
2016-12-16 01:40:00 20485586.19 10 us 8560 -14 -14
2016-12-16 02:00:00 20437512.44 2 us 8560 -14 -14
2016-12-17 03:40:00 17287920 10 us 8560 -14 -14
2016-12-21 07:20:00 -81695.2333 2 Hz 2380 -1 -1
2016-12-21 08:01:00 19078208.21 0.5 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)