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
2016-12-07 01:47:21 C 00 48 35.30 +38 37 23.7 q G96
2016-12-07 01:53:30 C 00 48 36.18 +38 37 36.3 q G96
2016-12-07 01:59:40 C 00 48 36.85 +38 37 48.5 q G96
2016-12-07 02:07:24 C 00 48 37.81 +38 38 03.6 q G96
2016-12-07 04:42:50 C 00 48 57.08 +38 42 56.8 q G96
2016-12-07 04:45:13 C 00 48 57.38 +38 43 00.9 q G96
2016-12-07 04:51:29 C 00 48 58.25 +38 43 12.2 q G96
2016-12-07 20:05:27 C 00 51 48.27 +39 13 27.5 S 595
2016-12-07 20:37:39 C 00 51 53.35 +39 14 32.4 S 595
2016-12-07 21:10:03 C 00 51 58.65 +39 15 35.7 S 595
2016-12-07 23:42:03 C 00 52 25.42 +39 20 33.3 19.3 q 104
2016-12-07 23:50:28 C 00 52 27.02 +39 20 49.0 19.3 q 104
2016-12-07 23:58:51 C 00 52 28.65 +39 21 04.2 19.6 q 104
2016-12-08 10:21:00 C 00 54 52.92 +39 45 43.9 o 300
2016-12-08 10:27:33 C 00 54 54.06 +39 45 59.2 o 300
2016-12-08 10:34:07 C 00 54 55.11 +39 46 14.7 o 300
2016-12-08 10:40:41 C 00 54 56.29 +39 46 30.2 o 300
2016-12-08 17:51:10 C 00 56 39.54 +40 03 10.4 q 160
2016-12-08 17:55:13 C 00 56 40.35 +40 03 20.3 q 160
2016-12-08 17:59:12 C 00 56 41.11 +40 03 29.9 q 160
2016-12-08 18:03:10 C 00 56 41.91 +40 03 40.3 q 160
2016-12-08 18:07:08 C 00 56 42.67 +40 03 50.9 q 160
2016-12-10 06:20:27 C 01 07 03.81 +41 45 10.2 o 291
2016-12-10 06:25:05 C 01 07 05.22 +41 45 23.3 o 291
2016-12-10 06:29:45 C 01 07 06.65 +41 45 36.5 o 291
2016-12-10 19:47:05 C 01 12 17.42 +42 29 45.3 U 204
2016-12-10 19:59:26 C 01 12 21.78 +42 30 27.6 U 204
2016-12-10 20:11:29 C 01 12 26.00 +42 31 09.0 U 204
2016-12-12 04:21:20 C 01 28 26.06 +44 39 58.1 t 705
2016-12-12 04:22:48 C 01 28 26.94 +44 40 05.2 t 705
2016-12-12 04:24:16 C 01 28 27.70 +44 40 11.2 t 705
2016-12-13 00:50:41 C 01 42 35.24 +46 18 40.6 q Z21
2016-12-13 00:51:17 C 01 42 35.66 +46 18 43.2 q Z21
2016-12-13 22:19:55 C 02 03 18.76 +48 20 14.8 q Z21
2016-12-13 22:22:03 C 02 03 20.93 +48 20 27.6 q Z21
2016-12-13 22:24:22 C 02 03 23.24 +48 20 40.5 q Z21
2016-12-13 22:28:57 C 02 03 27.88 +48 21 07.3 q Z21
2016-12-13 22:31:09 C 02 03 30.18 +48 21 20.2 q Z21
2016-12-13 22:33:52 C 02 03 32.89 +48 21 35.9 q Z21
2016-12-13 22:40:28 C 02 03 39.60 +48 22 13.5 q Z21
2016-12-13 22:45:16 C 02 03 44.45 +48 22 41.8 q Z21
2016-12-13 22:49:29 C 02 03 48.77 +48 23 05.3 q Z21
2016-12-13 22:51:28 C 02 03 50.82 +48 23 16.7 q Z21
2016-12-14 23:51:15 C 02 39 02.79 +50 59 24.5 q Z21
2016-12-14 23:58:54 C 02 39 15.11 +51 00 09.4 q Z21
2016-12-15 00:08:44 C 02 39 31.06 +51 01 06.6 q Z21
2016-12-15 00:16:34 C 02 39 43.82 +51 01 52.5 q Z21
2016-12-15 00:24:46 C 02 39 57.19 +51 02 39.3 q Z21
2016-12-15 00:36:22 C 02 40 16.25 +51 03 45.7 q Z21
2016-12-15 00:46:16 C 02 40 32.62 +51 04 41.6 q Z21
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)