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
2025-05-15 19:23:22 C 10 51 01.495 -40 39 48.96 V M22
2025-05-15 19:28:06 C 10 51 01.296 -40 39 47.45 V M22
2025-05-15 19:28:45 C 10 51 01.159 -40 39 44.93 V M22
2025-05-15 19:41:48 C 10 51 00.242 -40 39 36.40 V M22
2025-05-15 19:43:06 C 10 51 00.187 -40 39 35.17 V M22
2025-05-16 19:08:02 C 10 49 32.234 -40 23 58.52 V M22
2025-05-16 19:13:15 C 10 49 31.922 -40 23 54.82 V M22
2025-05-16 19:20:43 C 10 49 31.447 -40 23 49.88 V M22
2025-05-16 19:36:03 C 10 49 30.499 -40 23 38.87 V M22
2025-05-22 01:46:58 C 10 42 46.985 -38 58 32.23 V W68
2025-05-22 01:50:58 C 10 42 46.786 -38 58 29.46 V W68
2025-05-22 02:25:16 C 10 42 45.144 -38 58 05.92 V W68
2025-05-22 02:40:59 C 10 42 44.402 -38 57 55.48 V W68
2025-05-22 18:57:29 C 10 42 01.279 -38 46 56.24 V M22
2025-05-22 19:02:48 C 10 42 00.996 -38 46 53.00 V M22
2025-05-22 19:11:22 C 10 42 00.614 -38 46 46.99 V M22
2025-05-22 19:47:55 C 10 41 58.910 -38 46 22.01 V M22
2025-05-27 18:59:44 C 10 37 39.535 -37 26 52.33 V M22
2025-05-27 19:09:11 C 10 37 39.245 -37 26 45.78 V M22
2025-05-27 19:23:50 C 10 37 38.801 -37 26 35.84 V M22
2025-05-28 19:18:39 C 10 36 58.692 -37 10 59.05 V M22
2025-05-28 19:23:57 C 10 36 58.514 -37 10 55.34 V M22
2025-05-28 19:25:15 C 10 36 58.541 -37 10 54.55 V M22
2025-05-28 19:33:06 C 10 36 58.289 -37 10 49.62 V M22
2025-05-28 19:54:50 C 10 36 57.715 -37 10 34.82 V M22
2025-05-30 19:02:30 C 10 35 50.114 -36 40 15.38 V M22
2025-05-30 19:07:05 C 10 35 50.009 -36 40 12.18 V M22
2025-05-30 19:19:02 C 10 35 49.735 -36 40 04.69 V M22
2025-05-30 19:52:05 C 10 35 48.943 -36 39 42.77 V M22
2025-06-04 01:24:06 C 10 34 12.058 -35 36 45.47 V W68
2025-06-04 01:28:43 C 10 34 12.019 -35 36 42.88 V W68
2025-06-04 01:38:55 C 10 34 11.820 -35 36 36.94 V W68
2025-06-04 01:54:12 C 10 34 11.678 -35 36 27.00 V W68
2025-06-04 18:15:49 C 10 34 02.165 -35 26 39.77 V M22
2025-06-04 18:20:27 C 10 34 02.186 -35 26 36.38 V M22
2025-06-04 18:31:17 C 10 34 01.963 -35 26 30.73 V M22
2025-06-04 18:45:54 C 10 34 01.870 -35 26 21.48 V M22
2025-06-05 18:14:22 C 10 33 50.794 -35 12 29.48 V M22
2025-06-05 18:18:57 C 10 33 50.794 -35 12 25.78 V M22
2025-06-05 18:26:51 C 10 33 50.702 -35 12 21.89 V M22
2025-06-05 18:43:24 C 10 33 50.520 -35 12 10.80 V M22
2025-06-07 01:13:20 C 10 33 40.956 -34 54 27.54 V W68
2025-06-07 01:19:20 C 10 33 40.862 -34 54 25.60 V W68
2025-06-07 01:27:18 C 10 33 40.882 -34 54 19.80 V W68
2025-06-07 01:41:59 C 10 33 40.776 -34 54 10.62 V W68
2025-06-11 01:24:45 C 10 33 44.347 -34 00 58.21 V W68
2025-06-11 01:30:48 C 10 33 44.479 -34 00 55.80 V W68
2025-06-11 01:41:26 C 10 33 44.388 -34 00 49.10 V W68
2025-06-11 02:09:17 C 10 33 44.462 -34 00 33.26 V W68
2025-06-12 17:50:03 C 10 34 00.583 -33 39 37.84 V M22