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
2025-07-27 17:41:05 C 11 19 22.896 -26 06 06.80 V M22
2025-07-27 17:45:40 C 11 19 23.179 -26 06 04.32 V M22
2025-07-27 17:56:23 C 11 19 23.842 -26 05 57.19 V M22
2025-07-27 18:10:32 C 11 19 24.689 -26 05 48.16 V M22
2025-08-01 23:38:42 C 11 27 19.039 -24 33 38.84 V W68
2025-08-01 23:43:17 C 11 27 19.327 -24 33 34.81 V W68
2025-08-01 23:51:54 C 11 27 19.894 -24 33 26.82 V W68
2025-08-02 00:06:38 C 11 27 20.798 -24 33 13.39 V W68
2025-10-06 14:32:37 C 10 46 46.618 +52 04 53.18 V T08
2025-10-06 14:36:41 C 10 46 46.433 +52 04 55.99 V T08
2025-10-06 14:43:58 C 10 46 46.174 +52 05 01.36 V T08
2025-10-06 14:58:43 C 10 46 45.785 +52 05 13.42 V T08
2025-10-09 14:52:24 C 10 44 44.090 +52 54 02.41 V T08
2025-10-09 14:57:46 C 10 44 43.934 +52 54 05.69 V T08
2025-10-09 15:08:28 C 10 44 43.634 +52 54 13.64 V T08
2025-10-12 14:27:07 C 10 43 04.862 +53 35 46.10 V T08
2025-10-12 14:32:25 C 10 43 04.733 +53 35 49.81 V T08
2025-10-12 14:42:28 C 10 43 04.541 +53 35 56.33 V T08
2025-10-12 15:07:49 C 10 43 03.967 +53 36 10.94 V T08
2025-10-23 15:17:17 C 10 38 03.118 +55 43 36.19 V T08
2025-10-23 15:21:20 C 10 38 03.029 +55 43 38.39 V T08
2025-10-23 15:25:57 C 10 38 02.926 +55 43 40.01 V T08
2025-10-23 15:29:56 C 10 38 02.880 +55 43 42.02 V T08
2025-10-24 14:26:36 C 10 37 33.852 +55 54 12.53 V T08
2025-10-24 14:30:39 C 10 37 33.775 +55 54 14.83 V T08
2025-10-24 14:40:36 C 10 37 33.557 +55 54 19.73 V T08
2025-10-24 15:04:09 C 10 37 32.899 +55 54 31.10 V T08
2025-10-25 05:07:10 C 10 37 14.386 +56 00 57.17 V R17
2025-10-25 05:27:31 C 10 37 13.853 +56 01 07.14 V R17
2025-10-25 05:47:55 C 10 37 13.310 +56 01 17.26 V R17
2025-10-25 06:08:17 C 10 37 12.802 +56 01 27.73 V R17
2025-10-29 10:01:14 B 10 34 39.581 +56 48 24.44 W U95
2025-10-29 10:16:36 B 10 34 39.122 +56 48 32.51 W U95
2025-10-29 10:33:15 B 10 34 38.604 +56 48 41.18 W U95
2025-10-30 09:01:19 B 10 33 57.948 +56 59 31.63 W U95
2025-10-30 09:16:45 B 10 33 57.475 +56 59 39.77 W U95
2025-10-30 09:33:27 B 10 33 56.952 +56 59 48.62 W U95
2025-10-31 04:58:46 C 10 33 19.423 +57 09 25.78 V R17
2025-10-31 05:19:10 C 10 33 18.694 +57 09 36.58 V R17
2025-10-31 05:39:30 C 10 33 17.950 +57 09 47.48 V R17
2025-10-31 05:59:52 C 10 33 17.184 +57 09 58.10 V R17
2025-11-01 09:50:11 C 10 32 19.943 +57 23 44.66 V G96
2025-11-01 09:57:00 C 10 32 19.684 +57 23 48.48 V G96
2025-11-01 10:03:47 C 10 32 19.442 +57 23 52.04 V G96
2025-11-01 10:10:36 C 10 32 19.172 +57 23 55.90 V G96
2025-11-02 15:16:21 C 10 31 13.507 +57 38 48.95 V T08
2025-11-02 15:21:39 C 10 31 13.274 +57 38 51.76 V T08
2025-11-02 15:28:56 C 10 31 12.941 +57 38 55.75 V T08
2025-11-02 15:33:43 C 10 31 12.734 +57 38 58.45 V T08
2025-11-08 13:21:02 C 10 24 24.199 +58 54 57.85 V T08