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Occultation event

2001 US179

2001 US179Trojan
event on 2022-08-18
19
Radius (km)
Geometric albedo
1
Positive chords
United Kingdom
Observed from
Size — to scalevs Pluto
2001 US179 · R 19 KMPLUTO · R 1188 KM
2001 US179 — this objectPluto — comparison
Physical properties
Radius eq. (km)> 19
Equivalent radius (km)
Oblateness
Axis ratios (b/a · c/a)
Density (g/cm³)
ShapeUndetermined
Albedo (V)
Orbit — top viewheliocentric
Neptune 30 AU
5.18
a (AU)
0.103
e
15.718
i (deg)
Occultation record
each line — one station saw the star vanish
Event date2022-08-18
Observed fromUnited Kingdom
Positive chords1 // radius lower limit
Kind
Delta (au)3.863
Star G mag.14.575
Object G mag.18.805
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
2001 US179 occultation — 2022-08-18 · SOSB / Lucky Star