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Occultation event

2010 SS43

2010 SS43TNO> Hot C.
event on 2025-09-23
Radius (km)
Geometric albedo
2
Positive chords
Spain, United States of America
Observed from
Size — to scalevs Pluto
2010 SS43 · R KMPLUTO · R 1188 KM
2010 SS43 — this objectPluto — comparison
Physical properties
Radius eq. (km)
Equivalent radius (km)
Oblateness
Axis ratios (b/a · c/a)
Density (g/cm³)
ShapeUndetermined
Albedo (V)
Orbit — top viewheliocentric
Neptune 30 AU
45.6797
a (AU)
0.22288
e
34.48
i (deg)
Occultation record
each line — one station saw the star vanish
Event date2025-09-23
Observed fromSpain, United States of America
Positive chords2
KindMain
Delta (au)45
Star G mag.16.54
Object G mag.21.6
Astrometryfeeds NIMA ephemeris
Position Date (JD)
RA position
Error RA·cos(δ) (mas)
DEC position
Error DEC (mas)
Atmosphere
Pressure (nbar)
Atm. gas
Reference & provenance
Lucky Star projectNo
ReferencePreliminary
DOI
Comment
2010 SS43 occultation — 2025-09-23 · SOSB / Lucky Star