369986 (1998 SO)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6985961685 ± 2.00e+00
Semi-major axis (a)0.7314470169 AU ± 3.00e+00
Inclination (i)30.34538022° ± 4.00e+00
Long. of Asc. Node (Ω)176.13671449° ± 5.00e+00
Arg. of Perihelion (ω)359.86491428° ± 6.00e+00
Mean Anomaly (M)347.53985158° ± 4.39e-05
Mean Motion (n)1.5755709566°/day ± 9.69e+00
Perihelion dist (q)0.22046093 AU ± 1.72e+00
Aphelion dist (Q)1.24243310 AU ± 5.30e+00
Orbital Period0.62556769 yr ± 3.85e+00
NGA Modelr2
A22.46814869e-06 AU/d²
Physical Parameters
H (abs. magnitude)20.44
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.422″
Uncertainty0
Orbit TypeAten
MOID0.197798 AU
Observations Used302
Oppositions16
Arc Total1998-2025
First Observation Used1998-09-16
Last Observation Used2025-08-29
Observations (307)
Date Type RA Dec Mag Band Observatory
2023-10-05 03:43:53 C 22 00 46.966 -23 40 41.63 V 703
2023-10-07 05:58:33 C 21 52 16.090 -25 30 25.26 X F51
2023-10-07 06:14:05 C 21 52 13.459 -25 30 57.26 X F51
2023-10-07 06:29:01 C 21 52 10.968 -25 31 27.49 X F51
2025-08-29 14:27:46 C 04 01 47.029 +10 51 12.90 X F51
2025-08-29 14:40:49 C 04 01 48.369 +10 50 56.50 X F51
2025-08-29 14:53:55 C 04 01 49.724 +10 50 40.04 X F51