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
2015-12-17 10:07:53 C 08 13 14.74 +17 27 15.2 q 703
2015-12-17 10:15:10 C 08 13 13.88 +17 27 16.1 q 703
2015-12-18 02:50:34 C 08 11 21.35 +17 29 22.6 t 130
2015-12-18 02:52:44 C 08 11 21.12 +17 29 23.0 t 130
2015-12-18 02:54:53 C 08 11 20.85 +17 29 23.2 t 130
2015-12-18 02:57:02 C 08 11 20.58 +17 29 23.0 t 130
2015-12-30 08:57:52 C 07 40 50.49 +18 09 56.0 q 703
2015-12-30 09:05:08 C 07 40 49.75 +18 09 56.7 q 703
2015-12-30 09:12:22 C 07 40 49.08 +18 09 57.4 q 703
2015-12-30 09:19:35 C 07 40 48.30 +18 09 58.9 q 703
2016-01-01 01:30:19 C 07 37 08.87 +18 15 18.3 18.4 u J43
2016-01-01 01:44:04 C 07 37 07.55 +18 15 20.3 18.4 u J43
2016-01-01 01:57:51 C 07 37 06.21 +18 15 21.9 18.4 u J43
2016-01-01 02:11:37 C 07 37 04.89 +18 15 23.8 18.5 u J43
2016-01-02 00:32:26 C 07 35 07.23 +18 18 18.3 18.3 u J43
2016-01-02 00:46:13 C 07 35 05.94 +18 18 20.5 18.4 u J43
2016-01-02 01:00:02 C 07 35 04.62 +18 18 22.8 18.3 u J43
2016-01-02 01:13:48 C 07 35 03.34 +18 18 24.6 18.3 u J43
2016-01-03 10:32:45 C 07 32 11.37 +18 22 37.5 q G96
2016-01-03 10:40:07 C 07 32 10.71 +18 22 38.4 q G96
2016-01-03 10:47:28 C 07 32 10.05 +18 22 39.1 q G96
2016-01-03 10:54:50 C 07 32 09.40 +18 22 39.9 q G96
2016-01-04 07:22:22 C 07 30 28.85 +18 25 15.6 R G45
2016-01-04 07:23:26 C 07 30 28.77 +18 25 15.7 R G45
2016-01-04 07:30:33 C 07 30 28.13 +18 25 16.5 R G45
2016-01-04 07:38:52 C 07 30 27.40 +18 25 17.7 R G45
2016-01-04 07:45:27 C 07 30 26.83 +18 25 18.5 R G45
2016-01-04 07:49:43 C 07 30 26.41 +18 25 18.5 R G45
2016-01-04 07:52:00 C 07 30 26.25 +18 25 19.0 R G45
2016-01-05 12:32:09 C 07 28 07.500 +18 28 56.49 L F51
2016-01-05 12:51:40 C 07 28 05.839 +18 28 58.61 L F51
2016-01-05 13:11:10 C 07 28 04.184 +18 29 00.65 L F51
2016-01-05 13:30:46 C 07 28 02.528 +18 29 02.65 L F51
2016-01-06 23:44:13 C 07 25 25.99 +18 33 07.1 18.6 u J43
2016-01-06 23:58:04 C 07 25 24.88 +18 33 09.0 18.5 u J43
2016-01-07 00:11:55 C 07 25 23.75 +18 33 10.8 18.4 u J43
2016-01-07 00:25:45 C 07 25 22.62 +18 33 12.4 18.4 u J43
2016-01-12 02:35:29 C 07 17 02.72 +18 46 55.3 u H15
2016-01-12 02:50:45 C 07 17 01.68 +18 46 58.2 u H15
2016-01-12 03:04:37 C 07 17 00.75 +18 47 00.6 u H15
2016-01-13 07:11:37 C 07 15 18.84 +18 50 01.2 q G96
2016-01-13 07:20:23 C 07 15 18.21 +18 50 01.1 q G96
2016-01-13 07:34:58 C 07 15 17.27 +18 50 02.6 q G96
2016-01-13 07:43:44 C 07 15 16.71 +18 50 03.5 q G96
2016-01-14 06:49:42 C 07 13 58.08 +18 52 25.6 R G45
2016-01-14 07:02:45 C 07 13 57.30 +18 52 26.8 R G45
2016-01-14 07:15:19 C 07 13 56.50 +18 52 28.0 R G45
2016-01-14 07:25:36 C 07 13 55.92 +18 52 29.2 R G45
2016-01-14 22:51:11 C 07 13 05.98 +18 54 03.2 18.6 u J43
2016-01-14 23:08:27 C 07 13 04.93 +18 54 05.1 18.4 u J43