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
2018-12-10 04:51:05 C 03 22 26.34 +17 11 51.5 V I52
2018-12-10 04:53:44 C 03 22 25.95 +17 11 50.8 V I52
2018-12-10 04:56:22 C 03 22 25.61 +17 11 50.5 V I52
2018-12-10 06:03:21 C 03 22 16.65 +17 11 45.2 o 691
2018-12-10 06:30:33 C 03 22 12.98 +17 11 42.1 o 691
2018-12-10 06:57:40 C 03 22 09.36 +17 11 38.9 o 691
2018-12-12 05:11:21 C 03 16 40.90 +17 07 22.6 o 691
2018-12-12 05:17:32 C 03 16 40.04 +17 07 21.7 o 691
2018-12-12 05:23:45 C 03 16 39.13 +17 07 21.0 o 691
2018-12-13 03:58:45 C 03 13 51.29 +17 05 17.5 V G96
2018-12-13 04:06:46 C 03 13 50.10 +17 05 16.5 V G96
2018-12-13 04:14:47 C 03 13 48.90 +17 05 15.9 V G96
2018-12-13 05:05:01 C 03 13 41.48 +17 05 12.8 o 691
2018-12-13 05:25:26 C 03 13 38.46 +17 05 10.7 o 691
2018-12-13 05:45:39 C 03 13 35.43 +17 05 08.9 o 691
2018-12-13 10:35:55 C 03 12 55.798 +17 04 54.84 U F51
2018-12-13 11:12:19 C 03 12 50.472 +17 04 49.17 U F51
2018-12-13 11:30:31 C 03 12 47.848 +17 04 46.19 U F51
2018-12-13 13:49:17 C 03 12 34.18 +17 04 25.1 q D29
2018-12-13 14:09:39 C 03 12 31.10 +17 04 22.8 q D29
2018-12-17 04:43:42 C 03 00 33.55 +16 56 52.0 19.3 q H21
2018-12-17 04:51:32 C 03 00 32.27 +16 56 50.6 19.4 q H21
2018-12-30 20:41:37 C 01 49 40.79 +16 16 55.1 V 595
2018-12-30 20:49:51 C 01 49 37.88 +16 16 52.0 V 595
2018-12-30 20:57:44 C 01 49 35.04 +16 16 49.5 V 595
2018-12-31 03:46:17 C 01 47 20.12 +16 15 32.9 o 691
2018-12-31 03:54:50 C 01 47 16.80 +16 15 30.0 o 691
2018-12-31 04:03:25 C 01 47 13.67 +16 15 27.1 o 691
2019-01-03 06:31:02 C 01 18 09.637 +15 44 28.80 U F51
2019-01-03 06:50:17 C 01 18 00.096 +15 44 15.68 U F51
2019-01-03 07:09:33 C 01 17 50.552 +15 44 02.22 U F51
2019-01-03 07:28:54 C 01 17 41.033 +15 43 48.42 U F51
2019-01-08 02:54:21 C 00 11 58.71 +13 41 57.9 V I52
2019-01-08 02:57:04 C 00 11 56.66 +13 41 51.6 V I52
2019-01-08 02:58:26 C 00 11 55.64 +13 41 49.8 V I52
2019-01-12 01:45:38 C 22 53 18.71 +09 47 03.5 V I52
2019-01-12 01:48:27 C 22 53 15.98 +09 46 54.0 V I52
2019-01-12 01:51:15 C 22 53 13.24 +09 46 44.3 V I52
2019-01-12 01:54:02 C 22 53 10.42 +09 46 35.7 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)