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Occultation event

Hi'iaka (Haumea/1)

Haumea/1TNO> Hot C.
event on 2021-04-16
Radius (km)
Geometric albedo
4
Positive chords
United States of America
Observed from
Size — to scalevs Pluto
HI'IAKA (HAUMEA/1) · R KMPLUTO · R 1188 KM
Hi'iaka (Haumea/1) — this objectPluto — comparison
Physical properties
Radius eq. (km)
Equivalent radius (km)
Oblateness
Axis ratios (b/a · c/a)
Density (g/cm³)
ShapeSpheroid
Albedo (V)
Orbit — top viewheliocentric
Neptune 30 AU
43.35
a (AU)
0.19
e
28.21
i (deg)
Occultation record
each line — one station saw the star vanish
Event date2021-04-16
Observed fromUnited States of America
Positive chords4
KindSatellite
Delta (au)49.37
Star G mag.12.4
Object G mag.20.3
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 projectYes
Referencepreliminary
DOI
Comment
Hi'iaka (Haumea/1) occultation — 2021-04-16 · SOSB / Lucky Star