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
2015-11-22 12:07:37 C 09 27 53.24 +16 37 01.0 R G45
2015-11-22 12:09:19 C 09 27 53.24 +16 37 02.2 q 703
2015-11-22 12:15:27 C 09 27 51.93 +16 37 01.4 R G45
2015-11-22 12:16:31 C 09 27 51.99 +16 37 02.5 q 703
2015-11-22 12:23:45 C 09 27 50.81 +16 37 03.3 q 703
2015-11-22 12:24:10 C 09 27 50.47 +16 37 01.7 R G45
2015-11-22 12:31:00 C 09 27 49.63 +16 37 02.8 q 703
2015-11-22 12:33:17 C 09 27 48.98 +16 37 02.3 R G45
2015-11-22 12:41:47 C 09 27 47.56 +16 37 02.7 R G45
2015-11-23 11:38:40 C 09 24 22.83 +16 38 02.1 R G45
2015-11-23 11:46:58 C 09 24 21.47 +16 38 02.0 R G45
2015-11-23 11:54:41 C 09 24 20.25 +16 38 02.8 R G45
2015-11-23 12:02:58 C 09 24 18.90 +16 38 03.0 R G45
2015-11-23 12:09:05 C 09 24 17.90 +16 38 03.5 R G45
2015-11-23 12:17:16 C 09 24 16.62 +16 38 03.8 R G45
2015-11-23 12:27:13 C 09 24 14.95 +16 38 04.3 R G45
2015-11-23 12:43:28 C 09 24 12.36 +16 38 04.5 R G45
2015-11-24 09:34:08 C 09 21 12.47 +16 38 51.3 u H21
2015-11-24 09:37:09 C 09 21 12.00 +16 38 51.5 u H21
2015-11-24 09:40:10 C 09 21 11.54 +16 38 51.8 u H21
2015-11-24 09:43:10 C 09 21 11.07 +16 38 52.1 u H21
2015-11-24 09:46:11 C 09 21 10.61 +16 38 52.2 u H21
2015-11-24 09:49:11 C 09 21 10.13 +16 38 52.3 u H21
2015-11-24 09:52:12 C 09 21 09.66 +16 38 52.5 u H21
2015-11-24 09:55:13 C 09 21 09.19 +16 38 52.7 u H21
2015-11-24 09:58:14 C 09 21 08.72 +16 38 52.8 u H21
2015-11-24 10:01:14 C 09 21 08.26 +16 38 53.0 u H21
2015-11-24 10:04:15 C 09 21 07.79 +16 38 53.2 u H21
2015-11-24 10:07:15 C 09 21 07.32 +16 38 53.4 u H21
2015-11-24 10:09:33 C 09 21 06.96 +16 38 53.5 u H21
2015-11-25 02:11:02 C 09 18 51.32 +16 39 27.6 q 160
2015-11-25 02:13:36 C 09 18 51.16 +16 39 27.5 q 160
2015-11-25 09:50:42 C 09 17 46.44 +16 39 52.9 u H21
2015-11-25 09:52:43 C 09 17 46.13 +16 39 52.9 u H21
2015-11-25 09:54:43 C 09 17 45.83 +16 39 53.2 u H21
2015-11-25 09:56:43 C 09 17 45.53 +16 39 53.3 u H21
2015-11-25 09:58:44 C 09 17 45.23 +16 39 53.3 u H21
2015-11-25 10:00:44 C 09 17 44.93 +16 39 53.6 u H21
2015-11-25 10:02:45 C 09 17 44.61 +16 39 53.6 u H21
2015-11-25 10:04:45 C 09 17 44.32 +16 39 53.7 u H21
2015-11-25 10:06:46 C 09 17 44.01 +16 39 53.9 u H21
2015-11-25 10:08:46 C 09 17 43.71 +16 39 53.9 u H21
2015-11-25 10:10:47 C 09 17 43.40 +16 39 54.1 u H21
2015-11-25 10:12:47 C 09 17 43.10 +16 39 54.1 u H21
2015-11-25 10:14:48 C 09 17 42.79 +16 39 54.4 u H21
2015-11-25 10:16:48 C 09 17 42.49 +16 39 54.7 u H21
2015-11-25 10:18:49 C 09 17 42.18 +16 39 54.7 u H21
2015-11-25 10:21:03 C 09 17 41.85 +16 39 54.7 u H21
2015-11-26 19:35:13 C 09 13 09.22 +16 41 27.0 q D29
2015-11-26 20:02:10 C 09 13 05.26 +16 41 28.2 q D29