137078 (1998 XZ4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6379071136 ± 7.58e-09
Semi-major axis (a)1.9385185544 AU ± 1.50e-09
Inclination (i)23.14653620° ± 3.85e-07
Long. of Asc. Node (Ω)324.43101836° ± 3.94e-06
Arg. of Perihelion (ω)9.64010941° ± 4.32e-06
Mean Anomaly (M)29.30107170° ± 2.11e-06
Mean Motion (n)0.3651802931°/day ± 4.24e-10
Perihelion dist (q)0.70192378 AU ± 1.47e-08
Aphelion dist (Q)3.17511333 AU ± 1.49e-08
Orbital Period2.69901279 yr ± 3.14e-09
Physical Parameters
H (abs. magnitude)16.36
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.018″
Uncertainty0
Orbit TypeApollo
MOID0.300990 AU
Observations Used845
Gaia Obs Used132
Oppositions12
Arc Total1998-2017
First Observation Used1998-12-11
Last Observation Used2026-01-08
Observations (933)
Date Type RA Dec Mag Band Observatory
2013-04-07 03:41:07 C 08 34 13.58 +19 00 48.7 u G96
2013-04-07 03:48:40 C 08 34 13.58 +19 00 47.7 u G96
2013-04-07 03:56:26 C 08 34 13.54 +19 00 46.9 u G96
2014-03-13 06:25:41 C 11 46 38.85 -23 27 26.9 q 448
2014-03-13 07:08:26 C 11 46 35.77 -23 27 27.6 q 448
2014-03-29 06:40:45 C 11 20 10.49 -22 45 30.0 q 448
2014-03-29 07:05:05 C 11 20 08.83 -22 45 25.2 q 448
2014-03-29 07:30:35 C 11 20 07.07 -22 45 20.1 q 448
2014-12-11 18:15:24 C 20 24 30.91 -00 18 02.0 q 160
2014-12-11 18:18:18 C 20 24 31.57 -00 17 53.7 q 160
2014-12-11 18:21:18 C 20 24 32.22 -00 17 47.1 q 160
2014-12-18 17:41:17 C 21 00 49.12 +06 04 34.9 q 160
2014-12-18 17:43:25 C 21 00 49.56 +06 04 39.9 q 160
2014-12-18 17:45:55 C 21 00 50.13 +06 04 44.4 q 160
2014-12-31 17:52:52 C 22 10 20.52 +17 16 13.8 q 160
2014-12-31 17:55:33 C 22 10 20.91 +17 16 22.6 q 160
2015-01-01 17:34:33 C 22 15 42.77 +18 02 35.5 q 160
2015-01-01 17:37:33 C 22 15 43.46 +18 02 41.4 q 160
2015-01-01 17:40:19 C 22 15 44.10 +18 02 46.6 q 160
2015-01-04 17:19:26 C 22 32 01.84 +20 17 29.5 q 160
2015-01-04 17:23:00 C 22 32 02.70 +20 17 35.7 q 160
2015-01-04 17:24:35 C 22 32 03.13 +20 17 38.2 q 160
2015-01-05 17:11:15 C 22 37 28.39 +21 00 29.3 q 160
2015-01-05 17:14:15 C 22 37 29.06 +21 00 34.5 q 160
2015-01-05 17:17:15 C 22 37 29.73 +21 00 38.9 q 160
2015-02-10 02:34:36 C 01 40 57.63 +35 38 04.3 q 703
2015-02-10 02:41:50 C 01 40 58.99 +35 38 06.8 q 703
2015-02-10 02:56:19 C 01 41 01.78 +35 38 13.8 q 703
2016-01-13 10:58:49 C 10 44 20.58 +06 43 45.7 q G96
2016-01-13 11:07:35 C 10 44 20.31 +06 43 45.8 q G96
2016-01-13 11:27:59 C 10 44 19.65 +06 43 45.9 q G96
2016-02-06 11:25:28 C 10 20 51.219 +07 22 35.43 L F51
2016-02-06 11:44:36 C 10 20 50.236 +07 22 37.50 L F51
2016-02-06 12:03:43 C 10 20 49.264 +07 22 39.74 L F51
2016-02-06 12:22:43 C 10 20 48.297 +07 22 41.94 L F51
2016-02-09 13:24:07 C 10 17 05.380 +07 31 18.23 L F51
2016-02-09 13:43:23 C 10 17 04.373 +07 31 20.63 L F51
2016-02-09 14:02:52 C 10 17 03.355 +07 31 23.01 L F51
2016-02-18 08:05:33 C 10 05 58.21 +07 58 31.9 q G96
2016-02-18 08:13:01 C 10 05 57.79 +07 58 33.2 q G96
2016-02-18 08:20:30 C 10 05 57.38 +07 58 34.1 q G96
2016-02-18 08:27:59 C 10 05 57.00 +07 58 35.0 q G96
2016-02-27 04:41:01 C 09 54 42.72 +08 27 17.4 q G96
2016-02-27 04:48:31 C 09 54 42.37 +08 27 18.7 q G96
2016-02-27 04:55:59 C 09 54 41.95 +08 27 19.6 q G96
2016-02-27 05:03:27 C 09 54 41.57 +08 27 21.0 q G96
2016-03-05 08:34:40 C 09 46 03.844 +08 49 32.89 L F51
2016-03-05 08:52:06 C 09 46 02.984 +08 49 35.22 L F51
2016-03-05 09:09:35 C 09 46 02.118 +08 49 37.10 L F51
2016-03-05 09:27:01 C 09 46 01.248 +08 49 39.30 L F51