439877 (1999 XM141)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3692232612 ± 4.49e-08
Semi-major axis (a)1.2361088574 AU ± 9.40e-10
Inclination (i)21.62274780° ± 8.91e-06
Long. of Asc. Node (Ω)72.97641246° ± 7.21e-06
Arg. of Perihelion (ω)105.78877635° ± 1.07e-05
Mean Anomaly (M)264.67711196° ± 9.03e-06
Mean Motion (n)0.7171783960°/day ± 8.18e-10
Perihelion dist (q)0.77970871 AU ± 5.55e-08
Aphelion dist (Q)1.69250900 AU ± 5.55e-08
Orbital Period1.37431117 yr ± 1.57e-09
Physical Parameters
H (abs. magnitude)19.69
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.434″
Uncertainty0
Orbit TypeApollo
MOID0.034497 AU
Observations Used225
Oppositions7
Arc Total1999-2026
First Observation Used1999-12-13
Last Observation Used2026-01-10
Observations (266)
Date Type RA Dec Mag Band Observatory
2025-12-14 06:18:47 C 01 17 27.148 -05 11 54.50 X F52
2025-12-22 05:45:51 C 01 08 46.467 -00 57 26.88 X F52
2025-12-22 06:03:46 C 01 08 45.785 -00 57 02.83 X F52
2025-12-22 06:39:40 C 01 08 44.426 -00 56 14.54 X F52
2025-12-23 13:57:59 C 01 07 44.077 -00 14 05.59 W O18
2025-12-23 14:06:50 C 01 07 43.774 -00 13 53.53 W O18
2025-12-23 15:03:31 C 01 07 41.891 -00 12 37.33 W O18
2025-12-23 15:12:24 C 01 07 41.587 -00 12 25.19 W O18
2025-12-24 14:19:08 C 01 07 01.519 +00 18 48.59 W O18
2025-12-24 14:25:37 C 01 07 01.303 +00 18 57.49 W O18
2025-12-24 15:35:34 C 01 06 59.180 +00 20 31.82 W O18
2026-01-02 14:09:14 C 01 03 20.838 +05 11 46.93 W O18
2026-01-02 14:35:07 C 01 03 20.602 +05 12 21.90 W O18
2026-01-10 05:22:31 C 01 03 21.297 +09 20 58.68 X F52
2026-01-10 06:04:23 C 01 03 21.419 +09 21 55.14 X F52
2026-01-10 06:25:13 C 01 03 21.497 +09 22 23.62 X F52