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
2019-03-12 15:40:53 C 15 51 45.542 -09 22 07.68 V T12
2019-03-12 15:42:22 C 15 51 45.657 -09 22 07.40 V T12
2019-03-17 11:00:20 C 16 00 44.36 -08 55 55.5 V G96
2019-03-17 11:07:41 C 16 00 44.88 -08 55 53.9 V G96
2019-03-17 11:15:00 C 16 00 45.31 -08 55 51.8 V G96
2019-03-17 11:22:19 C 16 00 45.78 -08 55 50.3 V G96
2019-03-17 11:41:02 C 16 00 47.01 -08 55 46.3 V I52
2019-03-17 11:46:07 C 16 00 47.35 -08 55 44.4 V I52
2019-03-17 11:51:15 C 16 00 47.65 -08 55 43.6 V I52
2019-03-17 11:56:24 C 16 00 48.00 -08 55 42.3 V I52
2019-03-18 09:41:46 C 16 02 17.89 -08 50 25.4 V I52
2019-03-18 09:45:08 C 16 02 18.11 -08 50 23.6 V I52
2019-03-18 09:49:36 C 16 02 18.43 -08 50 21.8 V I52
2019-03-18 09:53:10 C 16 02 18.65 -08 50 21.9 V I52
2019-04-05 19:39:12 C 16 18 40.50 -06 53 22.3 q D29
2019-04-05 20:21:46 C 16 18 40.54 -06 53 11.6 q D29
2019-04-06 12:48:42 C 16 18 47.828 -06 48 51.02 U F51
2019-04-06 13:06:48 C 16 18 47.823 -06 48 46.39 U F51
2019-04-06 13:24:48 C 16 18 47.816 -06 48 41.78 U F51
2019-04-06 13:42:51 C 16 18 47.806 -06 48 37.09 U F51
2019-04-14 09:53:32 C 16 17 45.58 -06 03 35.3 V G96
2019-04-14 10:00:21 C 16 17 45.44 -06 03 34.0 V G96
2019-04-14 10:07:11 C 16 17 45.28 -06 03 32.4 V G96
2019-04-14 10:14:03 C 16 17 45.13 -06 03 30.8 V G96
2019-04-16 11:07:42 C 16 16 50.68 -05 53 16.7 V I52
2019-04-16 11:16:22 C 16 16 50.44 -05 53 15.4 V I52
2019-04-16 11:26:55 C 16 16 50.20 -05 53 12.6 V I52
2019-04-25 11:24:01 C 16 10 19.18 -05 17 54.2 V G96
2019-04-25 11:28:07 C 16 10 19.03 -05 17 53.5 V G96
2019-04-25 11:32:14 C 16 10 18.87 -05 17 52.9 V G96
2019-04-25 11:36:18 C 16 10 18.65 -05 17 52.5 V G96
2019-05-01 10:48:18 C 16 04 16.66 -05 05 00.3 V I52
2019-05-01 10:55:31 C 16 04 16.31 -05 05 00.2 V I52
2019-05-01 10:59:08 C 16 04 16.12 -05 05 00.1 V I52
2019-05-01 11:08:29 C 16 04 15.64 -05 04 59.2 V I52
2019-05-02 09:13:19 C 16 03 15.60 -05 03 50.9 V G96
2019-05-02 09:20:41 C 16 03 15.22 -05 03 50.3 V G96
2019-05-02 09:28:08 C 16 03 14.86 -05 03 50.2 V G96
2019-05-02 09:35:31 C 16 03 14.48 -05 03 50.0 V G96
2019-05-04 17:30:20 C 16 00 37.64 -05 01 58.7 q D29
2019-05-04 17:50:41 C 16 00 36.58 -05 01 59.1 q D29
2019-05-06 09:47:56 C 15 58 41.94 -05 01 36.2 V I52
2019-05-06 09:52:48 C 15 58 41.65 -05 01 36.2 V I52
2019-05-06 09:56:52 C 15 58 41.44 -05 01 36.1 V I52
2019-05-07 12:02:43 C 15 57 26.336 -05 01 43.48 U F51
2019-05-07 12:18:38 C 15 57 25.494 -05 01 43.70 U F51
2019-05-07 12:34:32 C 15 57 24.653 -05 01 43.88 U F51
2019-05-07 12:50:21 C 15 57 23.814 -05 01 44.06 U F51
2019-05-08 10:50:30 C 15 56 20.738 -05 02 09.02 U F51
2019-05-08 11:06:07 C 15 56 19.905 -05 02 09.43 U F51