450142 (1998 XN2)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5418061766 ± 2.34e-08
Semi-major axis (a)1.9984244916 AU ± 2.48e-10
Inclination (i)1.78991254° ± 3.28e-06
Long. of Asc. Node (Ω)255.18791782° ± 2.17e-05
Arg. of Perihelion (ω)127.00550318° ± 2.47e-05
Mean Anomaly (M)205.72890785° ± 3.43e-06
Mean Motion (n)0.3488836850°/day ± 6.50e-11
Perihelion dist (q)0.91566576 AU ± 4.68e-08
Aphelion dist (Q)3.08118322 AU ± 4.68e-08
Orbital Period2.82508562 yr ± 5.26e-10
Physical Parameters
H (abs. magnitude)19.88
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.275″
Uncertainty0
Orbit TypeApollo
MOID0.008033 AU
Observations Used346
Oppositions14
Arc Total1998-2019
First Observation Used1998-12-09
Last Observation Used2019-01-16
Observations (413)
Date Type RA Dec Mag Band Observatory
2015-12-10 02:37:52 C 08 33 35.33 +17 05 27.5 t 511
2015-12-10 03:35:14 C 08 33 28.05 +17 05 33.8 t 511
2015-12-10 03:36:07 C 08 33 27.94 +17 05 33.9 t 511
2015-12-10 03:37:00 C 08 33 27.81 +17 05 33.9 t 511
2015-12-10 03:37:54 C 08 33 27.71 +17 05 34.1 t 511
2015-12-10 03:38:46 C 08 33 27.60 +17 05 34.1 t 511
2015-12-10 03:39:40 C 08 33 27.48 +17 05 34.3 t 511
2015-12-10 03:40:33 C 08 33 27.37 +17 05 34.3 t 511
2015-12-10 03:41:26 C 08 33 27.27 +17 05 34.5 t 511
2015-12-10 03:42:19 C 08 33 27.15 +17 05 34.6 t 511
2015-12-10 03:43:12 C 08 33 27.04 +17 05 34.6 t 511
2015-12-10 04:03:48 C 08 33 24.43 +17 05 36.7 t 511
2015-12-10 04:04:41 C 08 33 24.31 +17 05 36.8 t 511
2015-12-10 04:05:34 C 08 33 24.20 +17 05 36.9 t 511
2015-12-10 04:24:27 C 08 33 21.81 +17 05 38.7 t 511
2015-12-10 04:25:20 C 08 33 21.70 +17 05 38.9 t 511
2015-12-10 04:26:14 C 08 33 21.59 +17 05 38.9 t 511
2015-12-11 01:08:03 C 08 30 56.85 +17 07 58.1 t 511
2015-12-11 01:08:36 C 08 30 56.78 +17 07 58.0 t 511
2015-12-11 01:09:09 C 08 30 56.71 +17 07 58.2 t 511
2015-12-11 01:11:51 C 08 30 56.37 +17 07 58.5 t 511
2015-12-11 01:12:55 C 08 30 56.24 +17 07 58.7 t 511
2015-12-11 01:13:58 C 08 30 56.10 +17 07 58.8 t 511
2015-12-11 01:15:01 C 08 30 55.96 +17 07 58.9 t 511
2015-12-11 01:16:04 C 08 30 55.83 +17 07 59.0 t 511
2015-12-11 01:23:36 C 08 30 54.89 +17 08 00.0 t 511
2015-12-11 01:24:39 C 08 30 54.76 +17 08 00.2 t 511
2015-12-11 01:25:42 C 08 30 54.63 +17 08 00.3 t 511
2015-12-11 01:26:45 C 08 30 54.49 +17 08 00.4 t 511
2015-12-11 01:27:49 C 08 30 54.35 +17 08 00.6 t 511
2015-12-11 02:44:14 C 08 30 45.65 +17 08 19.2 o Z22
2015-12-11 02:56:13 C 08 30 44.15 +17 08 20.7 o Z22
2015-12-11 03:07:35 C 08 30 42.68 +17 08 22.3 o Z22
2015-12-11 20:24:08 C 08 28 39.54 +17 10 19.5 q D29
2015-12-11 20:54:36 C 08 28 35.72 +17 10 22.2 q D29
2015-12-12 03:17:15 C 08 27 52.42 +17 11 11.4 o Z22
2015-12-12 03:28:48 C 08 27 50.96 +17 11 12.8 o Z22
2015-12-12 03:48:10 C 08 27 48.48 +17 11 16.2 o Z22
2015-12-14 09:32:41 C 08 21 33.12 +17 17 47.2 u H15
2015-12-14 09:46:27 C 08 21 31.59 +17 17 48.9 u H15
2015-12-14 09:47:32 C 08 21 31.49 +17 17 48.9 R G45
2015-12-14 09:54:40 C 08 21 30.61 +17 17 49.8 R G45
2015-12-14 10:00:20 C 08 21 29.86 +17 17 51.4 u H15
2015-12-14 10:01:22 C 08 21 29.76 +17 17 50.8 R G45
2015-12-14 10:12:19 C 08 21 28.38 +17 17 51.9 R G45
2015-12-14 10:19:24 C 08 21 27.52 +17 17 52.8 R G45
2015-12-16 18:18:52 C 08 15 02.70 +17 25 09.0 q D29
2015-12-16 18:44:16 C 08 14 59.56 +17 25 12.7 q D29
2015-12-16 19:09:40 C 08 14 56.46 +17 25 16.2 q D29
2015-12-17 09:53:23 C 08 13 16.51 +17 27 13.1 q 703