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
2025-11-08 13:25:50 C 10 24 23.803 +58 55 00.98 V T08
2025-11-08 13:34:27 C 10 24 23.321 +58 55 06.10 V T08
2025-11-08 13:59:29 C 10 24 21.763 +58 55 21.54 V T08
2025-11-09 04:16:37 C 10 23 30.823 +59 03 21.85 V R17
2025-11-09 04:33:48 C 10 23 29.690 +59 03 32.15 V R17
2025-11-09 04:53:26 C 10 23 28.459 +59 03 43.96 V R17
2025-11-09 05:13:05 C 10 23 27.144 +59 03 55.62 V R17
2025-11-10 13:53:54 C 10 21 22.814 +59 22 36.98 V T08
2025-11-10 14:01:13 C 10 21 22.315 +59 22 40.91 V T08
2025-11-10 14:07:50 C 10 21 21.854 +59 22 44.58 V T08
2025-11-10 14:25:03 C 10 21 20.630 +59 22 55.45 V T08
2025-11-11 10:31:32 C 10 19 58.415 +59 34 30.14 V 703
2025-11-11 10:34:52 C 10 19 58.192 +59 34 32.41 V 703
2025-11-11 10:38:12 C 10 19 57.868 +59 34 35.80 V 703
2025-11-11 10:41:32 C 10 19 57.450 +59 34 39.36 V 703
2025-11-11 14:00:40 C 10 19 43.726 +59 36 35.82 V T08
2025-11-11 14:05:56 C 10 19 43.313 +59 36 39.28 V T08
2025-11-11 14:17:11 C 10 19 42.403 +59 36 46.40 V T08
2025-11-11 14:47:35 C 10 19 40.186 +59 37 04.62 V T08
2025-11-15 03:36:20 C 10 12 57.377 +60 27 24.62 V R17
2025-11-15 03:56:41 C 10 12 55.498 +60 27 37.66 V R17
2025-11-15 04:17:05 C 10 12 53.614 +60 27 50.72 V R17
2025-11-15 04:37:26 C 10 12 51.730 +60 28 03.58 V R17
2025-11-18 03:30:16 C 10 06 02.042 +61 11 04.70 V R17
2025-11-18 03:50:41 C 10 05 59.834 +61 11 18.10 V R17
2025-11-18 04:11:01 C 10 05 57.590 +61 11 31.09 V R17
2025-11-18 04:31:24 C 10 05 55.327 +61 11 44.12 V R17
2025-11-25 08:38:47 B 09 43 54.026 +62 54 01.98 V 648
2025-11-25 08:52:20 B 09 43 51.917 +62 54 10.08 V 648
2025-11-25 09:05:58 B 09 43 49.805 +62 54 18.14 V 648
2025-11-25 13:51:47 C 09 43 05.585 +62 57 03.10 V T05
2025-11-25 14:00:25 C 09 43 04.147 +62 57 08.39 V T05
2025-11-25 14:03:41 C 09 43 03.658 +62 57 10.12 V T05
2025-11-25 14:37:45 C 09 42 58.186 +62 57 29.52 V T05
2025-11-26 09:55:59 C 09 39 56.876 +63 08 06.29 V 703
2025-11-26 09:59:20 C 09 39 56.239 +63 08 08.38 V 703
2025-11-26 10:02:40 C 09 39 55.811 +63 08 10.43 V 703
2025-11-26 10:06:00 C 09 39 55.184 +63 08 12.01 V 703
2025-11-27 11:41:51 B 09 35 43.152 +63 21 58.75 V 648
2025-11-27 11:55:30 B 09 35 40.774 +63 22 06.10 V 648
2025-11-27 12:09:08 B 09 35 38.438 +63 22 13.51 V 648
2025-11-28 12:05:39 C 09 31 32.315 +63 34 34.86 V 703
2025-11-28 12:09:16 C 09 31 31.580 +63 34 36.30 V 703
2025-11-28 12:12:53 C 09 31 30.997 +63 34 38.75 V 703
2025-11-28 12:16:30 C 09 31 30.385 +63 34 40.30 V 703
2025-11-28 14:12:21 C 09 31 10.498 +63 35 40.74 V T08
2025-11-28 14:14:58 C 09 31 10.037 +63 35 42.00 V T08
2025-11-28 14:18:55 C 09 31 09.324 +63 35 43.91 V T08
2025-11-28 14:23:32 C 09 31 08.489 +63 35 46.28 V T08
2025-11-28 14:28:54 C 09 31 07.464 +63 35 49.16 V T08