2015 YS9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3671095894 ± 2.00e+00
Semi-major axis (a)1.4303385658 AU ± 3.00e+00
Inclination (i)1.48048135° ± 4.00e+00
Long. of Asc. Node (Ω)100.02349650° ± 5.00e+00
Arg. of Perihelion (ω)305.50913323° ± 6.00e+00
Mean Anomaly (M)306.20161518° ± 7.21e-02
Mean Motion (n)0.5761575500°/day ± 1.81e+00
Perihelion dist (q)0.90524710 AU ± 3.43e+00
Aphelion dist (Q)1.95544990 AU ± 5.00e+00
Orbital Period1.71065640 yr ± 5.38e+00
Physical Parameters
H (abs. magnitude)26.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.491″
Uncertainty2
Orbit TypeApollo
MOID0.003933 AU
Observations Used54
Oppositions1
Arc Total2015-2016
First Observation Used
Last Observation Used2016-01-03
Observations (54)
Date Type RA Dec Mag Band Observatory
2016-01-03 08:12:58 C 06 17 39.06 +24 26 39.9 q I52
2016-01-03 08:18:36 C 06 17 41.09 +24 26 44.2 q I52
2016-01-03 08:23:57 C 06 17 43.05 +24 26 50.4 q I52
2016-01-03 08:28:07 C 06 17 44.46 +24 26 54.1 q I52