Diomedes

1971 RDTrojan

event on 1997-11-07

142

Radius (km)

—

Geometric albedo

Positive chords

Japan

Observed from

Size — to scalevs Pluto

DIOMEDES · R 142 KMPLUTO · R 1188 KM

Diomedes — this objectPluto — comparison

Physical properties

Radius eq. (km)142 ± 31

Equivalent radius (km)66 ± 37

Oblateness0.77 ± 0.098

Axis ratios (b/a · c/a)—

Density (g/cm³)—

ShapeJacobi

Albedo (V)—

Orbit — top viewheliocentric

5.2

a (AU)

0.043

20.5

i (deg)

Occultation record

Event date1997-11-07

Observed fromJapan

Positive chords6

KindMain

Delta (au)4.03

Star G mag.7.4

Object G mag.—

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

ReferenceSato et al., Icarus, 2000

DOI10.1006/icar.1999.6316

Linkhttps://doi.org/10.1006/icar.1999.6316

Comment—