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
2017-12-20 07:52:15 C 08 57 00.18 +45 47 35.5 U 703
2017-12-20 07:59:26 C 08 56 59.42 +45 47 36.4 U 703
2017-12-20 08:06:36 C 08 56 58.65 +45 47 38.1 U 703
2017-12-20 08:13:46 C 08 56 57.89 +45 47 39.4 U 703
2017-12-24 08:45:52 C 08 46 34.10 +46 04 11.3 U 703
2017-12-24 08:55:13 C 08 46 33.06 +46 04 13.8 U 703
2017-12-24 09:13:54 C 08 46 30.97 +46 04 15.1 U 703
2017-12-25 13:08:55 C 08 43 21.60 +46 07 45.7 U T05
2017-12-25 13:22:09 C 08 43 20.02 +46 07 47.2 U T05
2017-12-25 13:34:14 C 08 43 18.61 +46 07 48.6 U T05
2017-12-25 13:45:03 C 08 43 17.39 +46 07 49.3 U T05
2017-12-28 07:43:26 C 08 35 38.11 +46 13 24.7 U 703
2017-12-28 07:51:07 C 08 35 37.22 +46 13 25.0 U 703
2017-12-28 07:58:49 C 08 35 36.29 +46 13 26.0 U 703
2017-12-28 08:06:31 C 08 35 35.35 +46 13 26.1 U 703
2017-12-29 13:04:40 C 08 32 08.59 +46 14 43.2 U T05
2017-12-29 13:16:15 C 08 32 07.25 +46 14 44.1 U T05
2017-12-29 13:17:36 C 08 32 07.06 +46 14 43.7 U T05
2017-12-29 13:33:40 C 08 32 05.10 +46 14 43.9 U T05
2017-12-30 05:04:01 C 08 30 14.53 +46 15 00.8 U G96
2017-12-30 05:11:28 C 08 30 13.63 +46 15 01.2 U G96
2017-12-30 05:18:55 C 08 30 12.74 +46 15 01.2 U G96
2017-12-30 05:26:21 C 08 30 11.83 +46 15 01.6 U G96
2018-01-05 11:52:53 C 08 11 54.621 +46 06 31.42 U F51
2018-01-05 12:11:45 C 08 11 52.263 +46 06 28.94 U F51
2018-01-05 12:30:43 C 08 11 49.895 +46 06 26.44 U F51
2018-01-05 12:49:38 C 08 11 47.547 +46 06 23.78 U F51
2018-01-06 06:54:54 C 08 09 36.07 +46 03 50.9 U G96
2018-01-06 07:02:27 C 08 09 35.13 +46 03 49.7 U G96
2018-01-06 07:09:59 C 08 09 34.20 +46 03 48.7 U G96
2018-01-06 07:17:33 C 08 09 33.25 +46 03 47.6 U G96
2018-01-16 11:39:55 C 07 41 12.41 +45 00 07.3 U T08
2018-01-16 11:55:27 C 07 41 10.63 +45 00 02.2 U T08
2018-01-16 12:09:24 C 07 41 09.18 +44 59 57.3 U T08
2018-01-16 12:24:01 C 07 41 07.57 +44 59 52.2 U T08
2018-01-17 10:17:52 C 07 38 47.695 +44 51 43.37 U F51
2018-01-17 10:34:17 C 07 38 45.914 +44 51 37.13 U F51
2018-01-17 11:07:04 C 07 38 42.366 +44 51 24.58 U F51
2018-01-22 04:35:57 C 07 27 21.92 +44 04 00.7 U 703
2018-01-22 04:43:38 C 07 27 21.14 +44 03 56.7 U 703
2018-01-22 04:51:19 C 07 27 20.37 +44 03 53.5 U 703
2018-01-22 04:59:00 C 07 27 19.59 +44 03 49.8 U 703
2018-01-25 04:23:00 C 07 20 53.94 +43 30 21.6 U 703
2018-01-25 04:30:43 C 07 20 53.33 +43 30 17.9 U 703
2018-01-25 04:38:27 C 07 20 52.60 +43 30 14.6 U 703
2018-01-25 04:46:10 C 07 20 51.91 +43 30 11.0 U 703
2018-01-25 05:36:59 C 07 20 47.43 +43 29 45.9 U G96
2018-01-25 05:44:32 C 07 20 46.77 +43 29 42.2 U G96
2018-01-25 05:52:06 C 07 20 46.10 +43 29 38.5 U G96
2018-01-25 05:59:41 C 07 20 45.43 +43 29 35.0 U G96