2018 XN

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3295418089 ± 2.00e+00
Semi-major axis (a)1.3933353100 AU ± 3.00e+00
Inclination (i)1.07035925° ± 4.00e+00
Long. of Asc. Node (Ω)82.08912237° ± 5.00e+00
Arg. of Perihelion (ω)58.14161470° ± 6.00e+00
Mean Anomaly (M)45.98454351° ± 7.94e-02
Mean Motion (n)0.5992786578°/day ± 1.94e+00
Perihelion dist (q)0.93417307 AU ± 3.44e+00
Aphelion dist (Q)1.85249755 AU ± 4.87e+00
Orbital Period1.64468778 yr ± 5.31e+00
Physical Parameters
H (abs. magnitude)23.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-14
RMS Residual0.255″
Uncertainty2
Orbit TypeApollo
MOID0.006557 AU
Observations Used86
Oppositions1
Arc Total2018-2019
First Observation Used2018-12-04
Last Observation Used2019-01-12
Observations (89)
Date Type RA Dec Mag Band Observatory
2018-12-04 05:19:37 C 03 37 20.43 +17 25 51.5 V G96
2018-12-04 05:27:43 C 03 37 19.52 +17 25 50.4 V G96
2018-12-04 05:35:51 C 03 37 18.65 +17 25 49.8 V G96
2018-12-04 05:43:57 C 03 37 17.75 +17 25 49.3 V G96
2018-12-04 08:52:07 C 03 36 57.28 +17 25 26.5 V I52
2018-12-04 08:54:40 C 03 36 57.01 +17 25 26.0 V I52
2018-12-04 08:57:13 C 03 36 56.74 +17 25 25.8 V I52
2018-12-04 08:59:46 C 03 36 56.47 +17 25 25.5 V I52
2018-12-04 09:16:47 C 03 36 54.58 +17 25 20.5 V H01
2018-12-04 09:21:29 C 03 36 54.08 +17 25 19.9 V H01
2018-12-04 09:43:59 C 03 36 51.76 +17 25 16.3 V H01
2018-12-04 09:53:05 C 03 36 50.83 +17 25 14.9 V H01
2018-12-04 18:09:03 C 03 36 09.81 +17 24 16.7 V L01
2018-12-04 18:12:57 C 03 36 09.41 +17 24 16.7 V L01
2018-12-04 18:17:26 C 03 36 08.91 +17 24 16.0 V L01
2018-12-04 18:45:57 C 03 36 05.80 +17 24 08.7 S 033
2018-12-04 18:50:35 C 03 36 05.33 +17 24 08.8 S 033
2018-12-04 18:55:14 C 03 36 04.84 +17 24 08.4 S 033
2018-12-04 20:46:45 C 03 35 53.04 +17 24 00.7 S 033
2018-12-04 20:51:24 C 03 35 52.55 +17 24 00.1 S 033
2018-12-04 20:56:02 C 03 35 52.04 +17 23 59.9 S 033
2018-12-04 21:27:51 C 03 35 50.562 +17 24 17.75 V J04
2018-12-04 21:29:26 C 03 35 50.387 +17 24 17.46 V J04
2018-12-04 21:31:01 C 03 35 50.233 +17 24 17.47 V J04
2018-12-04 21:49:25 C 03 35 46.45 +17 24 00.5 U 587
2018-12-04 21:54:02 C 03 35 45.94 +17 24 00.1 U 587
2018-12-04 21:55:28 C 03 35 45.78 +17 24 00.1 U 587
2018-12-04 22:06:21 C 03 35 44.48 +17 24 00.0 20.9 V 104
2018-12-04 22:17:04 C 03 35 43.31 +17 23 59.1 20.8 V 104
2018-12-04 22:27:48 C 03 35 42.13 +17 23 57.9 V 104
2018-12-04 23:49:48 C 03 35 33.28 +17 23 46.9 V 204
2018-12-05 00:02:53 C 03 35 31.87 +17 23 45.2 V 204
2018-12-05 02:21:57 C 03 35 23.05 +17 23 39.3 V H01
2018-12-05 02:27:50 C 03 35 22.43 +17 23 38.9 V H01
2018-12-05 02:48:25 C 03 35 20.22 +17 23 38.0 V H01
2018-12-05 02:58:23 C 03 35 19.14 +17 23 37.6 V H01
2018-12-05 18:38:07 C 03 33 46.92 +17 21 51.7 o K88
2018-12-05 18:56:30 C 03 33 44.92 +17 21 50.0 o K88
2018-12-09 03:12:33 C 03 25 21.66 +17 14 15.0 V I52
2018-12-09 03:14:09 C 03 25 21.48 +17 14 15.0 V I52
2018-12-09 03:15:46 C 03 25 21.31 +17 14 15.0 V I52
2018-12-09 03:17:21 C 03 25 21.09 +17 14 15.2 V I52
2018-12-09 04:51:31 C 03 25 07.89 +17 14 01.2 U 734
2018-12-09 04:53:49 C 03 25 08.78 +17 14 09.5 o 691
2018-12-09 05:02:43 C 03 25 06.48 +17 13 59.9 U 734
2018-12-09 05:11:09 C 03 25 06.52 +17 14 07.8 o 691
2018-12-09 05:25:03 C 03 25 03.58 +17 13 57.4 U 734
2018-12-09 05:28:13 C 03 25 04.28 +17 14 06.4 o 691
2018-12-09 05:36:14 C 03 25 02.17 +17 13 56.2 U 734
2018-12-10 04:48:05 C 03 22 26.74 +17 11 51.6 V I52
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2019-01-14 18:13:00 -2921.8701 0.05 Hz 2380 -1 -1
2019-01-14 18:45:00 30339490.34 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)