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
2025-06-12 17:58:42 C 10 34 00.662 -33 39 33.19 V M22
2025-06-12 18:03:22 C 10 34 00.677 -33 39 30.85 V M22
2025-06-12 18:20:28 C 10 34 00.775 -33 39 21.46 V M22
2025-06-13 17:59:25 C 10 34 14.069 -33 27 10.98 V M22
2025-06-13 18:04:40 C 10 34 14.150 -33 27 08.06 V M22
2025-06-13 18:15:18 C 10 34 14.177 -33 27 02.27 V M22
2025-06-13 18:34:22 C 10 34 14.338 -33 26 52.04 V M22
2025-06-14 17:38:51 C 10 34 30.146 -33 15 12.38 V M22
2025-06-14 17:39:30 C 10 34 30.139 -33 15 12.89 V M22
2025-06-14 17:40:09 C 10 34 30.154 -33 15 13.14 V M22
2025-06-14 18:56:21 C 10 34 30.898 -33 14 33.65 V M22
2025-06-14 18:57:00 C 10 34 30.883 -33 14 33.36 V M22
2025-06-15 17:06:53 C 10 34 48.787 -33 03 34.74 V M22
2025-06-15 17:24:52 C 10 34 48.991 -33 03 25.99 V M22
2025-06-15 17:25:31 C 10 34 48.972 -33 03 25.85 V M22
2025-06-15 17:40:12 C 10 34 49.147 -33 03 18.36 V M22
2025-06-16 17:49:00 C 10 35 10.982 -32 51 32.90 V M22
2025-06-16 18:13:45 C 10 35 11.371 -32 51 21.20 V M22
2025-06-16 18:33:46 C 10 35 11.652 -32 51 11.34 V M22
2025-06-16 18:43:29 C 10 35 11.842 -32 51 06.48 V M22
2025-06-16 19:03:55 C 10 35 12.077 -32 50 56.40 V M22
2025-06-16 19:04:34 C 10 35 12.086 -32 50 55.57 V M22
2025-06-18 23:35:35 C 10 36 09.547 -32 26 14.39 V W68
2025-06-18 23:46:57 C 10 36 09.734 -32 26 08.77 V W68
2025-06-18 23:50:33 C 10 36 09.778 -32 26 07.37 V W68
2025-06-18 23:56:56 C 10 36 09.883 -32 26 03.59 V W68
2025-06-19 00:02:59 C 10 36 10.003 -32 26 01.03 V W68
2025-06-19 16:48:15 C 10 36 31.109 -32 18 21.74 V M22
2025-06-19 16:50:00 C 10 36 31.099 -32 18 21.17 V M22
2025-06-19 16:54:36 C 10 36 31.193 -32 18 18.86 V M22
2025-06-19 16:56:55 C 10 36 31.243 -32 18 18.36 V M22
2025-06-19 17:00:51 C 10 36 31.332 -32 18 16.09 V M22
2025-06-19 17:01:31 C 10 36 31.332 -32 18 15.91 V M22
2025-06-19 17:04:57 C 10 36 31.414 -32 18 14.44 V M22
2025-06-19 17:08:41 C 10 36 31.474 -32 18 12.46 V M22
2025-06-19 17:09:20 C 10 36 31.493 -32 18 12.17 V M22
2025-06-21 17:38:08 C 10 37 38.993 -31 56 38.11 V M22
2025-06-21 17:44:08 C 10 37 39.142 -31 56 35.63 V M22
2025-06-21 17:52:07 C 10 37 39.300 -31 56 32.35 V M22
2025-06-21 18:07:57 C 10 37 39.658 -31 56 24.54 V M22
2025-06-21 19:32:54 C 10 37 41.645 -31 55 46.81 V M22
2025-06-22 18:50:02 C 10 38 17.928 -31 45 45.68 V M22
2025-06-22 18:59:29 C 10 38 18.103 -31 45 41.00 V M22
2025-06-22 19:06:41 C 10 38 18.336 -31 45 38.12 V M22
2025-06-22 19:09:56 C 10 38 18.413 -31 45 36.86 V M22
2025-06-22 19:14:55 C 10 38 18.578 -31 45 33.91 V M22
2025-06-22 19:15:34 C 10 38 18.602 -31 45 33.88 V M22
2025-06-24 17:51:02 C 10 39 38.146 -31 26 06.72 V M22
2025-06-24 17:55:40 C 10 39 38.249 -31 26 04.09 V M22
2025-06-24 18:07:09 C 10 39 38.525 -31 26 00.31 V M22