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Occultation event

2000 QO218

2000 QO218Trojan
event on 2022-08-28
Radius (km)
Geometric albedo
1
Positive chords
Australia
Observed from
Size — to scalevs Pluto
2000 QO218 · R KMPLUTO · R 1188 KM
2000 QO218 — this objectPluto — comparison
Physical properties
Radius eq. (km)> —
Equivalent radius (km)
Oblateness
Axis ratios (b/a · c/a)
Density (g/cm³)
Shape
Albedo (V)
Orbit — top viewheliocentric
Neptune 30 AU
5.09
a (AU)
0.07
e
2.957
i (deg)
Occultation record
each line — one station saw the star vanish
Event date2022-08-28
Observed fromAustralia
Positive chords1 // radius lower limit
Kind
Delta (au)4.61
Star G mag.10.465
Object G mag.19.987
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
2000 QO218 occultation — 2022-08-28 · SOSB / Lucky Star