ADEOS-2
RetroReflector Array (RRA) Characteristics:

Courtesy of HTSI
The corner cubes are made of research grade
radiation resistant suprasil quartz. Their performance is
optimized at the green wavelength, 532 nanometers. The corner
cubes are symmetrically mounted on a hemispherical surface
with one nadir-looking corner cube in the center, surrounded
by an angled ring of eight corner cubes. This will allow
laser ranging in the field of view angles of 360 degrees
in azimuth and 60 degrees elevation around the perpendicular
to the satellite's -Zs earth panel. The design is identical
to the GFO-1 array.
More information about the array can be found on
the JAXA ADEOS-2 RRA page.