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
2006-11-02 05:08:33 C 17 38 38.76 +06 08 50.8 r F84
2006-11-02 05:24:16 C 17 38 41.57 +06 09 44.0 r F84
2006-11-13 18:13:13 C 18 30 46.17 +22 22 01.8 17.5 r 130
2006-11-13 18:17:08 C 18 30 46.95 +22 22 15.5 17.6 r 130
2006-11-13 18:21:03 C 18 30 47.77 +22 22 29.2 17.6 r 130
2006-11-13 18:23:17 C 18 30 48.21 +22 22 37.3 17.7 r 130
2006-11-15 16:54:44 C 18 40 28.63 +25 06 54.4 r 113
2006-11-15 16:55:55 C 18 40 28.87 +25 06 58.3 r 113
2006-11-15 17:00:36 C 18 40 29.87 +25 07 15.0 r 113
2006-11-15 17:01:46 C 18 40 30.10 +25 07 18.6 r 113
2006-11-15 17:02:57 C 18 40 30.34 +25 07 23.0 r 113
2006-11-18 16:56:26 C 18 56 15.05 +29 16 31.6 r 113
2006-11-18 16:57:52 C 18 56 15.36 +29 16 36.2 r 113
2006-11-18 16:59:18 C 18 56 15.70 +29 16 41.3 r 113
2006-11-18 17:00:45 C 18 56 16.01 +29 16 46.0 r 113
2006-11-18 17:02:10 C 18 56 16.34 +29 16 50.9 r 113
2006-11-18 17:03:35 C 18 56 16.63 +29 16 55.9 r 113
2006-11-27 16:33:36 C 19 51 01.25 +40 38 03.5 r 113
2006-11-27 16:35:42 C 19 51 01.89 +40 38 08.7 r 113
2006-11-27 16:36:52 C 19 51 02.24 +40 38 12.5 r 113
2006-11-27 16:38:05 C 19 51 02.58 +40 38 15.9 r 113
2006-11-27 16:39:17 C 19 51 02.90 +40 38 18.7 r 113
2006-11-27 16:40:27 C 19 51 03.23 +40 38 22.1 r 113
2006-12-06 09:39:48 C 20 57 18.60 +49 03 14.2 m 355
2006-12-06 09:42:45 C 20 57 19.60 +49 03 21.4 m 355
2006-12-06 09:47:57 C 20 57 21.41 +49 03 31.4 m 355
2006-12-10 01:33:10 C 21 28 51.13 +51 35 11.3 18.0 c 704
2006-12-10 01:50:27 C 21 28 57.39 +51 35 37.1 18.1 c 704
2006-12-10 02:07:45 C 21 29 03.65 +51 36 02.4 18.0 c 704
2006-12-10 02:25:03 C 21 29 09.95 +51 36 27.9 18.0 c 704
2006-12-10 02:42:21 C 21 29 16.25 +51 36 53.2 17.9 c 704
2006-12-11 01:20:58 C 21 37 40.31 +52 09 40.4 17.9 c 704
2006-12-11 01:38:09 C 21 37 46.47 +52 10 04.2 18.1 c 704
2006-12-11 01:55:18 C 21 37 52.72 +52 10 27.6 18.1 c 704
2006-12-11 02:12:32 C 21 37 59.12 +52 10 51.4 18.2 c 704
2006-12-11 02:29:55 C 21 38 05.45 +52 11 13.8 18.3 c 704
2006-12-18 20:25:44 C 22 48 38.29 +55 03 49.8 17.4 o 084
2006-12-18 20:27:53 C 22 48 39.15 +55 03 50.8 17.9 o 084
2006-12-25 17:29:59 C 23 48 37.20 +55 33 11.4 17.3 o 084
2007-01-03 01:51:31 C 00 51 27.45 +54 24 07.0 r H45
2007-01-03 01:52:49 C 00 51 27.79 +54 24 06.5 r H45
2007-01-03 01:54:13 C 00 51 28.20 +54 24 05.6 r H45
2007-01-03 01:55:48 C 00 51 28.69 +54 24 04.6 r H45
2007-01-03 01:57:04 C 00 51 29.04 +54 24 04.1 r H45
2007-01-08 01:31:22 C 01 23 00.65 +53 12 03.3 r H45
2007-01-08 01:32:55 C 01 23 01.03 +53 12 02.2 r H45
2007-01-08 01:34:56 C 01 23 01.51 +53 12 01.1 r H45
2007-01-08 01:36:17 C 01 23 01.84 +53 12 00.2 r H45
2007-01-08 01:37:31 C 01 23 02.13 +53 11 59.5 r H45
2007-01-08 03:14:23 C 01 23 25.68 +53 10 55.1 17.8 c 704