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Occultation event

Quaoar

2002 LM60TNO> Hot C.
event on 2019-06-28
560.5
Radius (km)
Geometric albedo
1
Positive chords
Japan
Observed from
Size — to scalevs Pluto
QUAOAR · R 560.5 KMPLUTO · R 1188 KM
Quaoar — this objectPluto — comparison
Physical properties
Radius eq. (km)> 560.5
Equivalent radius (km)
Oblateness
Axis ratios (b/a · c/a)
Density (g/cm³)
ShapeUndetermined
Albedo (V)
Orbit — top viewheliocentric
Neptune 30 AU
43.5
a (AU)
0.041
e
8
i (deg)
Occultation record
each line — one station saw the star vanish
Event date2019-06-28
Observed fromJapan
Positive chords1 // radius lower limit
KindMain
Delta (au)41.85
Star G mag.15.7
Object G mag.18.8
Astrometryfeeds NIMA ephemeris
Position Date (JD)
RA position
Error RA·cos(δ) (mas)
DEC position
Error DEC (mas)
Atmosphere
Pressure (nbar)<10
Atm. gasCH4
Reference & provenance
Lucky Star projectNo
ReferenceArimatsu et al, ArXiv 2019
DOI
Commenthttp://lesia.obspm.fr/lucky-star/occ.php?p=16559
Quaoar occultation — 2019-06-28 · SOSB / Lucky Star