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
2009-06-15 09:38:34 C 16 30 17.143 -11 41 02.04 V F51
2009-06-15 09:59:24 C 16 30 16.283 -11 41 05.61 V F51
2011-10-25 13:39:45 C 02 51 13.933 +07 55 43.82 V F51
2011-10-25 13:58:14 C 02 51 13.080 +07 55 38.49 V F51
2011-11-05 09:06:36 C 02 38 16.680 +06 34 12.71 V F51
2011-12-02 07:23:53 C 02 06 14.742 +04 01 47.51 V F51
2016-07-04 11:43:49 C 20 00 58.595 -16 09 55.31 V F51
2016-07-04 12:30:07 C 20 00 56.222 -16 10 03.93 V F51
2018-11-13 13:34:40 C 08 34 04.617 +11 48 07.63 V F52
2018-11-13 14:09:56 C 08 34 08.586 +11 47 50.79 V F52
2018-11-13 14:27:41 C 08 34 10.632 +11 47 42.32 V F52
2018-12-13 14:10:35 C 10 07 26.743 +04 40 02.95 U F51
2018-12-13 14:29:39 C 10 07 29.480 +04 39 49.54 U F51
2018-12-13 14:48:44 C 10 07 32.183 +04 39 36.24 U F51
2018-12-14 10:09:32 C 10 10 22.83 +04 25 58.0 V I52
2018-12-14 10:11:20 C 10 10 23.11 +04 25 57.4 V I52
2018-12-14 10:13:08 C 10 10 23.35 +04 25 55.4 V I52
2018-12-14 10:14:56 C 10 10 23.64 +04 25 54.4 V I52
2018-12-14 11:42:20 C 10 10 36.23 +04 24 52.6 o 691
2018-12-14 12:02:44 C 10 10 39.18 +04 24 38.6 o 691
2018-12-14 12:22:51 C 10 10 42.05 +04 24 24.8 o 691
2018-12-14 15:20:33 C 10 11 08.244 +04 22 21.82 V 568
2018-12-14 15:21:55 C 10 11 08.439 +04 22 20.96 V 568
2018-12-14 15:23:18 C 10 11 08.629 +04 22 19.87 V 568
2018-12-15 02:59:16 C 10 12 51.82 +04 14 02.1 V L01
2018-12-15 03:04:18 C 10 12 52.51 +04 13 58.8 V L01
2018-12-20 12:19:13 C 10 32 31.25 +02 40 37.1 V I52
2018-12-20 12:23:23 C 10 32 31.85 +02 40 34.0 V I52
2018-12-20 12:28:09 C 10 32 32.56 +02 40 31.0 V I52
2018-12-20 12:30:34 C 10 32 32.95 +02 40 29.1 V I52
2019-01-08 15:04:32 C 11 50 18.414 -03 02 56.39 U F51
2019-01-08 15:19:35 C 11 50 21.078 -03 03 07.39 U F51
2019-01-08 15:34:37 C 11 50 23.733 -03 03 18.31 U F51
2019-01-08 15:49:39 C 11 50 26.383 -03 03 29.25 U F51
2019-01-16 15:43:37 C 12 26 05.970 -05 16 54.92 V T12
2019-01-16 15:44:29 C 12 26 06.123 -05 16 55.50 V T12
2019-01-16 15:45:31 C 12 26 06.313 -05 16 56.14 V T12
2019-01-17 16:07:54 C 12 30 42.791 -05 32 44.91 V T12
2019-01-17 16:09:53 C 12 30 43.157 -05 32 46.18 V T12
2019-02-04 14:46:34 C 13 51 46.616 -09 07 26.18 U F51
2019-02-04 15:01:38 C 13 51 49.239 -09 07 31.11 U F51
2019-02-04 15:16:40 C 13 51 51.868 -09 07 36.04 U F51
2019-02-04 15:31:43 C 13 51 54.497 -09 07 40.96 U F51
2019-02-08 11:17:32 C 14 08 14.36 -09 34 27.6 U H36
2019-02-08 11:26:02 C 14 08 15.80 -09 34 29.5 U H36
2019-02-08 12:27:44 C 14 08 26.19 -09 34 44.1 U H36
2019-03-01 06:40:18 C 15 23 23.86 -10 05 42.4 u 807
2019-03-01 06:42:58 C 15 23 24.16 -10 05 42.2 u 807
2019-03-01 06:45:39 C 15 23 24.50 -10 05 41.9 u 807
2019-03-12 15:38:28 C 15 51 45.347 -09 22 08.22 V T12