2025 HS18

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5809761224 ± 1.14e-04
Semi-major axis (a)2.3851038443 AU ± 6.46e-04
Inclination (i)1.09793947° ± 1.47e-04
Long. of Asc. Node (Ω)48.97256425° ± 2.52e-04
Arg. of Perihelion (ω)152.05713128° ± 3.57e-04
Mean Anomaly (M)58.82839079° ± 2.40e-02
Mean Motion (n)0.2675785756°/day ± 1.09e-04
Perihelion dist (q)0.99941546 AU ± 3.83e-04
Aphelion dist (Q)3.77079223 AU ± 1.06e-03
Orbital Period3.68350224 yr ± 1.50e-03
Physical Parameters
H (abs. magnitude)27.34
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-03
RMS Residual0.260″
Uncertainty2
Orbit TypeApollo
MOID0.005539 AU
Observations Used103
Oppositions1
Arc Total2025-2025
First Observation Used2025-04-30
Last Observation Used2025-05-03
Observations (106)
Date Type RA Dec Mag Band Observatory
2025-05-02 00:01:51 B 15 15 32.786 -09 01 26.87 Z K74
2025-05-02 00:15:26 B 15 15 58.795 -09 05 05.10 Z K74
2025-05-03 01:09:21 C 15 58 13.656 -14 25 31.09 X 033
2025-05-03 01:09:59 C 15 58 14.516 -14 25 37.50 X 033
2025-05-03 01:10:36 C 15 58 15.316 -14 25 43.60 X 033
2025-05-03 01:11:13 C 15 58 16.154 -14 25 49.70 X 033