Occultation event
2002 TX300
event on 2009-10-09
143
Radius (km)
0.88
Geometric albedo
2
Positive chords
United States of America
Observed from
Size — to scalevs Pluto
2002 TX300 · R 143 KMPLUTO · R 1188 KM
2002 TX300 — this objectPluto — comparison
Physical properties
Radius eq. (km)143 ± 5
Equivalent radius (km)143 ± 5
Oblateness—
Axis ratios (b/a · c/a)—
Density (g/cm³)—
ShapeSpherical
Albedo (V)0.88 ± 0.15/-0.06
Orbit — top viewheliocentric
43.6
a (AU)
0.125
e
25.8
i (deg)
Occultation record
Event date2009-10-09
Observed fromUnited States of America
Positive chords2
KindMain
Delta (au)40.61
Star G mag.—
Object G mag.—
Astrometryfeeds NIMA ephemeris
Position Date (JD)2455113.93750
RA position00 37 13.625731
Error RA·cos(δ) (mas)0.27
DEC position28 22 22.95729
Error DEC (mas)0.27
Where on the skyThe published position of this event, against the constellations.
Chart data: d3-celestial (BSD-3-Clause), from Hipparcos / Yale BSC and the IAU figures. Position J2000.
Atmosphere
Pressure (nbar)<33
Atm. gasXe
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.