2018 XQ4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4890577117 ± 3.99e-08
Semi-major axis (a)2.2349825379 AU ± 1.92e-08
Inclination (i)4.86744951° ± 2.55e-06
Long. of Asc. Node (Ω)145.02371778° ± 4.51e-05
Arg. of Perihelion (ω)14.59112458° ± 4.55e-05
Mean Anomaly (M)10.16060228° ± 8.99e-06
Mean Motion (n)0.2949857757°/day ± 3.80e-09
Perihelion dist (q)1.14194709 AU ± 8.97e-08
Aphelion dist (Q)3.32801798 AU ± 9.36e-08
Orbital Period3.34126715 yr ± 4.31e-08
Physical Parameters
H (abs. magnitude)20.15
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.230″
Uncertainty0
Orbit TypeAmor
MOID0.152976 AU
Observations Used132
Oppositions7
Arc Total2009-2019
First Observation Used2009-06-15
Last Observation Used2019-07-25
Observations (136)
Date Type RA Dec Mag Band Observatory
2019-05-08 11:21:43 C 15 56 19.074 -05 02 09.80 U F51
2019-05-08 11:37:18 C 15 56 18.245 -05 02 10.21 U F51
2019-05-11 12:05:34 C 15 52 49.150 -05 05 13.83 U F51
2019-05-11 12:20:29 C 15 52 48.369 -05 05 14.72 U F51
2019-05-11 12:50:17 C 15 52 46.811 -05 05 16.40 U F51
2019-05-23 06:00:18 C 15 40 28.42 -05 39 36.6 u 807
2019-05-23 06:05:38 C 15 40 28.20 -05 39 37.4 u 807
2019-05-23 06:10:58 C 15 40 27.96 -05 39 37.9 u 807
2019-05-24 08:42:07 C 15 39 28.860 -05 44 46.77 U F52
2019-05-24 08:57:02 C 15 39 28.256 -05 44 49.65 U F52
2019-05-24 09:11:56 C 15 39 27.647 -05 44 52.51 U F52
2019-05-24 09:26:51 C 15 39 27.034 -05 44 55.38 U F52
2019-05-24 09:46:29 C 15 39 25.59 -05 45 01.3 V I52
2019-05-24 09:53:24 C 15 39 25.29 -05 45 02.5 V I52
2019-05-24 10:04:26 C 15 39 24.91 -05 45 04.8 V I52
2019-05-26 06:57:11 C 15 37 49.39 -05 53 59.3 V G96
2019-05-26 07:05:16 C 15 37 49.05 -05 54 00.8 V G96
2019-05-26 07:13:22 C 15 37 48.72 -05 54 02.8 V G96
2019-05-26 07:21:27 C 15 37 48.41 -05 54 04.5 V G96
2019-05-26 15:32:02 C 15 37 31.76 -05 55 47.1 q D29
2019-05-26 15:52:24 C 15 37 30.93 -05 55 51.8 q D29
2019-06-06 04:48:54 C 15 30 48.65 -06 57 58.6 u 807
2019-06-06 04:55:42 C 15 30 48.53 -06 58 00.0 u 807
2019-06-06 07:10:29 C 15 30 46.10 -06 58 50.2 V G96
2019-06-06 07:17:55 C 15 30 45.94 -06 58 53.2 V G96
2019-06-06 07:32:46 C 15 30 45.63 -06 58 57.6 V G96
2019-06-07 07:40:55 C 15 30 20.666 -07 05 44.62 U F52
2019-06-07 07:45:34 C 15 30 20.587 -07 05 45.84 U F52
2019-06-07 08:02:21 C 15 30 20.256 -07 05 50.42 U F52
2019-06-07 08:14:34 C 15 30 19.991 -07 05 54.13 U F52
2019-06-07 08:19:10 C 15 30 19.893 -07 05 55.18 U F52
2019-06-07 08:31:24 C 15 30 19.662 -07 05 58.83 U F52
2019-07-25 07:00:00 C 15 47 21.470 -13 26 22.94 V F51
2019-07-25 07:02:46 C 15 47 21.564 -13 26 24.23 V F51
2019-07-25 07:30:52 C 15 47 22.616 -13 26 32.95 V F51
2019-07-25 07:33:38 C 15 47 22.701 -13 26 33.74 V F51