Occultation event
2007 JJ43
event on 2020-05-24
139.4
Radius (km)
—
Geometric albedo
1
Positive chords
Australia
Observed from
Size — to scalevs Pluto
2007 JJ43 · R 139.4 KMPLUTO · R 1188 KM
2007 JJ43 — this objectPluto — comparison
Physical properties
Radius eq. (km)> 139.4 ± 8.5
Equivalent radius (km)—
Oblateness0
Axis ratios (b/a · c/a)—
Density (g/cm³)—
ShapeUndetermined
Albedo (V)—
Orbit — top viewheliocentric
48.383
a (AU)
0.166
e
12.02
i (deg)
Occultation record
Event date2020-05-24
Observed fromAustralia
Positive chords1 // radius lower limit
KindMain
Delta (au)39.88
Star G mag.15.6822
Object G mag.20.775
Astrometryfeeds NIMA ephemeris
Position Date (JD)2458993.97916670
RA position16 57 27.967999
Error RA·cos(δ) (mas)0.47
DEC position−26 18 43.95822
Error DEC (mas)0.28
Atmosphere
Pressure (nbar)—
Atm. gas—
Reference & provenance
Lucky Star projectYes
ReferenceRommel et al, A&A, 644, A40, 2020
CommentThis object has an ambiguous solution where the center of it could be north or south of the observed chord. In this case we assumed the north position.