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
2025-11-28 14:30:52 C 09 31 07.116 +63 35 50.14 V T08
2025-11-28 14:43:27 C 09 31 04.858 +63 35 56.72 V T08
2025-11-29 13:24:53 C 09 27 01.589 +63 47 05.03 V T08
2025-11-29 13:29:29 C 09 27 00.766 +63 47 08.02 V T08
2025-11-29 13:45:36 C 09 26 57.677 +63 47 15.79 V T08
2025-11-29 13:53:35 C 09 26 56.146 +63 47 19.43 V T08
2025-11-29 13:58:53 C 09 26 55.145 +63 47 22.13 V T08
2025-11-29 14:03:29 C 09 26 54.264 +63 47 24.32 V T08
2025-11-30 02:14:18 C 09 24 40.260 +63 53 05.57 V R17
2025-11-30 02:15:36 C 09 24 40.097 +63 53 06.04 V R17
2025-11-30 02:18:47 C 09 24 39.492 +63 53 07.73 V R17
2025-11-30 02:34:41 C 09 24 36.358 +63 53 15.32 V R17
2025-11-30 02:35:57 C 09 24 36.168 +63 53 16.15 V R17
2025-11-30 02:39:09 C 09 24 35.580 +63 53 17.92 V R17
2025-11-30 02:55:03 C 09 24 32.470 +63 53 25.48 V R17
2025-11-30 02:56:20 C 09 24 32.282 +63 53 26.16 V R17
2025-11-30 02:59:32 C 09 24 31.685 +63 53 28.14 V R17
2025-11-30 03:15:26 C 09 24 28.570 +63 53 35.59 V R17
2025-11-30 03:16:43 C 09 24 28.361 +63 53 36.53 V R17
2025-11-30 03:19:54 C 09 24 27.744 +63 53 37.97 V R17
2025-12-01 14:01:07 C 09 17 48.329 +64 09 07.52 V T05
2025-12-01 14:04:24 C 09 17 47.652 +64 09 09.07 V T05
2025-12-01 14:10:59 C 09 17 46.315 +64 09 11.66 V T05
2025-12-01 14:27:48 C 09 17 42.806 +64 09 18.97 V T05
2025-12-01 14:37:10 C 09 17 40.939 +64 09 23.26 V T05
2025-12-02 12:46:21 C 09 13 15.883 +64 18 24.55 V T08
2025-12-02 12:50:57 C 09 13 14.861 +64 18 26.86 V T08
2025-12-02 12:55:34 C 09 13 13.963 +64 18 28.73 V T08
2025-12-02 12:57:32 C 09 13 13.474 +64 18 28.98 V T08
2025-12-02 13:06:07 C 09 13 11.700 +64 18 32.90 V T08
2025-12-03 02:13:13 C 09 10 30.818 +64 23 30.84 V R17
2025-12-03 02:33:36 C 09 10 26.518 +64 23 39.34 V R17
2025-12-03 02:53:57 C 09 10 22.190 +64 23 47.80 V R17
2025-12-03 03:14:21 C 09 10 17.849 +64 23 55.36 V R17
2025-12-09 01:01:40 C 08 38 28.579 +64 59 51.83 V R17
2025-12-09 01:22:02 C 08 38 23.604 +64 59 54.74 V R17
2025-12-09 01:42:25 C 08 38 18.638 +64 59 57.80 V R17
2025-12-09 02:02:47 C 08 38 13.654 +65 00 00.94 V R17
2025-12-09 02:07:16 C 08 38 12.571 +65 00 01.48 V R17
2025-12-09 02:27:37 C 08 38 07.522 +65 00 04.25 V R17
2025-12-09 02:48:00 C 08 38 02.491 +65 00 07.09 V R17
2025-12-09 03:08:23 C 08 37 57.518 +65 00 09.76 V R17
2025-12-09 08:55:46 C 08 36 34.222 +65 00 47.41 V 703
2025-12-09 08:59:13 C 08 36 33.419 +65 00 47.38 V 703
2025-12-09 09:02:39 C 08 36 32.494 +65 00 47.34 V 703
2025-12-09 09:06:05 C 08 36 31.561 +65 00 48.13 V 703
2025-12-10 12:39:10 C 08 29 50.062 +65 02 53.27 V T08
2025-12-10 12:41:48 C 08 29 49.548 +65 02 53.38 V T08
2025-12-10 12:46:31 C 08 29 48.326 +65 02 53.45 V T08
2025-12-10 13:14:39 C 08 29 41.174 +65 02 54.92 V T08