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
2015-11-26 20:29:06 C 09 13 01.29 +16 41 30.0 q D29
2015-11-28 02:33:22 C 09 09 01.79 +16 42 44.3 q 160
2015-11-28 02:36:08 C 09 09 01.37 +16 42 45.7 q 160
2015-11-28 02:38:55 C 09 09 00.94 +16 42 46.2 q 160
2015-12-02 11:58:24 C 08 55 36.10 +16 49 06.4 o 691
2015-12-02 12:01:39 C 08 55 35.65 +16 49 06.5 o 691
2015-12-02 12:04:54 C 08 55 35.23 +16 49 06.7 o 691
2015-12-03 11:08:34 C 08 52 45.06 +16 50 45.6 R G45
2015-12-03 11:08:40 C 08 52 45.07 +16 50 45.4 R G45
2015-12-03 11:13:20 C 08 52 44.65 +16 50 47.2 o 691
2015-12-03 11:16:03 C 08 52 44.06 +16 50 46.0 R G45
2015-12-03 11:16:54 C 08 52 44.16 +16 50 47.4 o 691
2015-12-03 11:17:24 C 08 52 43.86 +16 50 46.1 R G45
2015-12-03 11:20:30 C 08 52 43.68 +16 50 47.7 o 691
2015-12-03 11:25:24 C 08 52 42.83 +16 50 46.9 R G45
2015-12-03 11:32:26 C 08 52 41.85 +16 50 47.2 R G45
2015-12-03 11:33:07 C 08 52 41.77 +16 50 47.2 R G45
2015-12-04 11:45:04 C 08 49 44.31 +16 52 40.9 q I52
2015-12-04 11:51:13 C 08 49 43.50 +16 52 41.6 q I52
2015-12-04 11:57:23 C 08 49 42.68 +16 52 42.0 q I52
2015-12-04 12:03:33 C 08 49 41.87 +16 52 42.5 q I52
2015-12-05 20:41:20 C 08 45 44.58 +16 55 27.6 q D29
2015-12-05 21:07:49 C 08 45 41.12 +16 55 29.6 q D29
2015-12-06 20:05:34 C 08 42 55.91 +16 57 35.2 q D29
2015-12-06 20:06:50 C 08 42 55.78 +16 57 35.0 q D29
2015-12-06 20:33:31 C 08 42 52.28 +16 57 37.7 q D29
2015-12-06 20:34:47 C 08 42 52.12 +16 57 37.3 q D29
2015-12-06 21:01:27 C 08 42 48.65 +16 57 40.2 q D29
2015-12-06 21:02:43 C 08 42 48.49 +16 57 39.7 q D29
2015-12-07 12:42:12 C 08 40 57.68 +16 59 16.9 L T05
2015-12-07 13:25:38 C 08 40 52.08 +16 59 22.7 L T05
2015-12-07 13:55:09 C 08 40 48.12 +16 59 25.8 L T05
2015-12-07 14:12:27 C 08 40 45.81 +16 59 27.7 L T05
2015-12-09 22:55:43 C 08 34 02.24 +17 05 03.3 o C41
2015-12-09 23:02:55 C 08 34 01.37 +17 05 04.0 o C41
2015-12-09 23:13:36 C 08 34 00.04 +17 05 05.8 o C41
2015-12-10 01:17:13 C 08 33 45.54 +17 05 17.8 t 511
2015-12-10 01:17:48 C 08 33 45.48 +17 05 17.9 t 511
2015-12-10 01:18:21 C 08 33 45.41 +17 05 18.0 t 511
2015-12-10 01:18:54 C 08 33 45.34 +17 05 18.1 t 511
2015-12-10 01:19:27 C 08 33 45.27 +17 05 18.2 t 511
2015-12-10 01:23:51 C 08 33 44.71 +17 05 18.7 t 511
2015-12-10 01:24:44 C 08 33 44.60 +17 05 18.8 t 511
2015-12-10 01:25:37 C 08 33 44.49 +17 05 18.9 t 511
2015-12-10 01:26:30 C 08 33 44.38 +17 05 19.0 t 511
2015-12-10 01:27:23 C 08 33 44.26 +17 05 19.2 t 511
2015-12-10 02:34:20 C 08 33 35.78 +17 05 27.1 t 511
2015-12-10 02:35:13 C 08 33 35.66 +17 05 27.2 t 511
2015-12-10 02:36:06 C 08 33 35.56 +17 05 27.3 t 511
2015-12-10 02:37:00 C 08 33 35.44 +17 05 27.5 t 511