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Occultation event

Diomedes

1971 RDTrojan
event on 2021-08-20
Radius (km)
Geometric albedo
2
Positive chords
Georgia, Switzerland
Observed from
Size — to scalevs Pluto
DIOMEDES · R KMPLUTO · R 1188 KM
Diomedes — this objectPluto — comparison
Physical properties
Radius eq. (km)
Equivalent radius (km)
Oblateness
Axis ratios (b/a · c/a)
Density (g/cm³)
ShapeUndetermined
Albedo (V)
Orbit — top viewheliocentric
Neptune 30 AU
5.2
a (AU)
0.043
e
20.5
i (deg)
Occultation record
each line — one station saw the star vanish
Event date2021-08-20
Observed fromGeorgia, Switzerland
Positive chords2
KindMain
Delta (au)5.19
Star G mag.14
Object G mag.16.1
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
Diomedes occultation — 2021-08-20 · SOSB / Lucky Star