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
2025-06-24 18:23:19 C 10 39 39.002 -31 25 52.57 V M22
2025-06-27 00:04:24 C 10 41 21.422 -31 04 21.54 V W68
2025-06-27 00:10:23 C 10 41 21.605 -31 04 18.77 V W68
2025-06-27 00:18:20 C 10 41 21.847 -31 04 15.89 V W68
2025-06-27 00:41:38 C 10 41 22.586 -31 04 05.92 V W68
2025-06-27 01:57:39 C 10 41 25.030 -31 03 35.68 V W68
2025-06-29 17:59:20 C 10 43 42.168 -30 39 05.11 V M22
2025-06-29 18:03:15 C 10 43 42.278 -30 39 04.14 V M22
2025-06-29 18:10:27 C 10 43 42.583 -30 39 00.97 V M22
2025-06-29 18:26:32 C 10 43 43.138 -30 38 54.82 V M22
2025-07-07 17:22:05 C 10 51 55.442 -29 30 50.00 V M22
2025-07-07 17:26:43 C 10 51 55.675 -29 30 48.17 V M22
2025-07-07 17:35:53 C 10 51 56.100 -29 30 44.86 V M22
2025-07-07 17:50:56 C 10 51 56.798 -29 30 39.35 V M22
2025-07-08 23:42:54 C 10 53 24.118 -29 20 18.28 V W68
2025-07-08 23:48:17 C 10 53 24.350 -29 20 17.09 V W68
2025-07-08 23:56:10 C 10 53 24.696 -29 20 13.81 V W68
2025-07-09 00:14:45 C 10 53 25.620 -29 20 07.80 V W68
2025-07-09 23:37:18 C 10 54 35.762 -29 12 00.36 V W68
2025-07-09 23:41:20 C 10 54 35.916 -29 11 59.71 V W68
2025-07-09 23:50:40 C 10 54 36.367 -29 11 55.28 V W68
2025-07-10 00:07:15 C 10 54 37.190 -29 11 50.32 V W68
2025-07-12 23:20:06 C 10 58 19.944 -28 46 44.40 V W68
2025-07-12 23:24:46 C 10 58 20.191 -28 46 42.64 V W68
2025-07-12 23:32:45 C 10 58 20.554 -28 46 39.97 V W68
2025-07-12 23:48:35 C 10 58 21.418 -28 46 33.24 V W68
2025-07-14 18:13:56 C 11 00 40.049 -28 31 07.39 V M22
2025-07-14 18:18:30 C 11 00 40.284 -28 31 05.38 V M22
2025-07-14 18:27:03 C 11 00 40.774 -28 31 02.53 V M22
2025-07-14 18:43:50 C 11 00 41.686 -28 30 55.44 V M22
2025-07-17 23:32:18 C 11 05 03.694 -28 01 28.52 V W68
2025-07-17 23:37:00 C 11 05 03.720 -28 01 25.36 V W68
2025-07-17 23:48:10 C 11 05 04.366 -28 01 21.11 V W68
2025-07-18 00:05:00 C 11 05 05.292 -28 01 13.80 V W68
2025-07-18 17:35:08 C 11 06 06.744 -27 54 06.84 V M22
2025-07-18 17:39:44 C 11 06 06.979 -27 54 04.86 V M22
2025-07-18 17:48:56 C 11 06 07.502 -27 54 01.37 V M22
2025-07-18 18:03:31 C 11 06 08.306 -27 53 55.57 V M22
2025-07-19 17:13:48 C 11 07 30.617 -27 44 14.64 V M22
2025-07-19 17:18:26 C 11 07 30.907 -27 44 12.98 V M22
2025-07-19 17:27:52 C 11 07 31.478 -27 44 08.77 V M22
2025-07-19 17:42:16 C 11 07 32.227 -27 44 02.00 V M22
2025-07-23 17:04:46 C 11 13 19.958 -27 00 04.46 V M22
2025-07-23 17:10:47 C 11 13 20.354 -27 00 01.55 V M22
2025-07-23 17:19:20 C 11 13 20.851 -26 59 57.01 V M22
2025-07-23 17:34:23 C 11 13 21.780 -26 59 48.95 V M22
2025-07-24 23:11:02 C 11 15 12.269 -26 44 28.46 V W68
2025-07-24 23:16:28 C 11 15 12.557 -26 44 25.58 V W68
2025-07-24 23:24:31 C 11 15 13.051 -26 44 20.94 V W68
2025-07-24 23:40:50 C 11 15 14.047 -26 44 12.08 V W68