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
2016-01-14 23:25:43 C 07 13 03.99 +18 54 06.3 19.2 u J43
2016-01-14 23:42:59 C 07 13 02.89 +18 54 08.2 19.1 u J43
2016-01-16 11:09:03 C 07 11 12.774 +18 57 39.73 L F51
2016-01-16 11:24:45 C 07 11 11.910 +18 57 41.09 L F51
2016-01-16 11:40:19 C 07 11 11.062 +18 57 42.41 L F51
2016-01-16 11:55:58 C 07 11 10.206 +18 57 43.72 L F51
2016-02-01 06:41:34 C 07 00 06.423 +19 27 18.05 L F51
2016-02-01 07:00:35 C 07 00 06.143 +19 27 19.35 L F51
2016-02-01 07:19:39 C 07 00 05.872 +19 27 20.73 L F51
2016-02-01 07:38:39 C 07 00 05.590 +19 27 21.90 L F51
2019-01-16 14:36:53 C 10 50 03.285 +04 20 18.06 U F51
2019-01-16 14:52:46 C 10 50 02.642 +04 20 20.86 U F51
2019-01-16 15:08:35 C 10 50 01.965 +04 20 23.67 U F51