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
2024-02-04 14:12:58 C 10 07 36.025 +10 59 55.28 X F52
2024-02-09 08:11:08 C 10 01 30.473 +11 14 05.42 X F52
2024-02-09 08:27:53 C 10 01 29.559 +11 14 07.56 X F52
2024-02-09 08:44:38 C 10 01 28.632 +11 14 09.77 X F52
2024-02-09 09:01:23 C 10 01 27.716 +11 14 11.88 X F52
2024-02-14 08:23:33 C 09 54 55.518 +11 29 21.44 X F52
2024-02-14 08:40:20 C 09 54 54.572 +11 29 23.74 X F52
2024-02-14 08:57:06 C 09 54 53.636 +11 29 25.85 X F52
2024-02-14 09:13:55 C 09 54 52.691 +11 29 27.82 X F52
2024-02-19 04:19:25 C 09 48 33.901 +11 43 49.91 V G96
2024-02-19 04:34:06 C 09 48 33.059 +11 43 51.49 V G96
2024-02-19 04:41:27 C 09 48 32.645 +11 43 52.64 V G96
2025-03-03 12:35:30 C 13 27 42.340 -38 08 42.56 X F51
2025-03-03 12:49:27 C 13 27 41.922 -38 08 51.99 X F51
2025-03-03 13:03:23 C 13 27 41.503 -38 09 01.41 X F51
2025-03-03 13:17:20 C 13 27 41.083 -38 09 10.77 X F51
2025-03-30 03:07:45 B 12 48 54.54 -44 23 50.5 X X07
2025-03-30 03:26:21 B 12 48 52.73 -44 23 58.4 X X07
2025-03-30 03:45:06 B 12 48 50.89 -44 24 06.4 X X07
2025-04-04 22:26:38 C 12 34 36.302 -45 12 20.99 V M22
2025-04-04 23:12:15 C 12 34 31.039 -45 12 34.34 V M22
2025-04-04 23:16:52 C 12 34 30.646 -45 12 34.99 V M22
2025-04-04 23:22:07 C 12 34 30.089 -45 12 36.50 V M22
2025-04-04 23:26:08 C 12 34 29.590 -45 12 37.73 V M22
2025-04-04 23:35:20 C 12 34 28.586 -45 12 39.89 V M22
2025-04-16 05:02:29 C 12 02 54.886 -45 44 28.18 V W68
2025-04-16 05:07:12 C 12 02 54.283 -45 44 26.95 V W68
2025-04-16 05:36:35 C 12 02 50.676 -45 44 25.73 V W68
2025-04-16 05:46:01 C 12 02 49.423 -45 44 25.22 V W68
2025-04-17 22:14:10 C 11 57 53.333 -45 41 17.38 V M22
2025-04-17 22:21:36 C 11 57 52.445 -45 41 16.62 V M22
2025-04-17 22:27:03 C 11 57 51.696 -45 41 16.19 V M22
2025-04-17 22:41:10 C 11 57 49.910 -45 41 14.75 V M22
2025-04-22 03:02:57 B 11 45 39.95 -45 24 19.7 X X07
2025-04-22 03:16:14 B 11 45 38.31 -45 24 16.5 X X07
2025-04-22 03:29:32 B 11 45 36.68 -45 24 13.4 X X07
2025-04-22 03:44:02 B 11 45 34.91 -45 24 10.1 X X07
2025-04-23 02:12:22 B 11 42 54.07 -45 18 37.8 X X07
2025-04-23 02:24:32 B 11 42 52.58 -45 18 34.2 X X07
2025-04-23 02:37:58 B 11 42 50.95 -45 18 30.5 X X07
2025-04-23 02:51:16 B 11 42 49.33 -45 18 27.2 X X07
2025-04-23 03:29:08 C 11 42 44.707 -45 18 17.03 V W68
2025-04-23 03:33:52 C 11 42 44.117 -45 18 15.73 V W68
2025-04-23 03:41:55 C 11 42 43.135 -45 18 13.61 V W68
2025-04-23 03:56:40 C 11 42 41.335 -45 18 09.43 V W68
2025-05-14 19:55:40 C 10 52 33.778 -40 55 19.78 V M22
2025-05-14 19:59:54 C 10 52 33.506 -40 55 17.62 V M22
2025-05-14 20:08:44 C 10 52 32.822 -40 55 11.28 V M22
2025-05-14 20:23:13 C 10 52 31.822 -40 55 01.27 V M22
2025-05-15 19:13:16 C 10 51 02.189 -40 39 55.30 V M22