Occultation event
2003 UY117
event on 2020-10-23
166
Radius (km)
0.139
Geometric albedo
4
Positive chords
Spain
Observed from
Size — to scalevs Pluto
2003 UY117 · R 166 KMPLUTO · R 1188 KM
2003 UY117 — this objectPluto — comparison
Physical properties
Radius eq. (km)166 ± 12
Equivalent radius (km)117.5 ± 12.5
Oblateness0.35 ± 0.15
Axis ratios (b/a · c/a)0.65 · 0.54
Density (g/cm³)—
ShapeTri-axial
Albedo (V)0.139 ± 0.026
Orbit — top viewheliocentric
55.2
a (AU)
0.413
e
7.6
i (deg)
Occultation record
Event date2020-10-23
Observed fromSpain
Positive chords4
KindMain
Delta (au)33.4676
Star G mag.14.5
Object G mag.21.1
Astrometryfeeds NIMA ephemeris
Position Date (JD)2459146.4301134259
RA position03 23 26.21404
Error RA·cos(δ) (mas)0.32
DEC position22 47 19.3184
Error DEC (mas)0.38
Atmosphere
Pressure (nbar)—
Atm. gas—
Reference & provenance
Lucky Star projectYes
ReferenceKretlow et al. submitted 2024
DOI—
CommentKretlow et al. submitted 2024