Based on observations made with ESO Telescopes at the Paranal Observatory (under programme IDs 63.S-0200 and 65.S-0147) and with Telescopio Nazionale Galileo at Observatorio del Roque de Los Muchachos.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

The D-type asteroids include mainly the Trojans.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... dark

Since we do not presently have any constraint on Sycorax albedo, we cannot exclude that Sycorax is a very dark object (as most of the small bodies in the outer solar system) as well as a bright one (as some satellites of the outer planets).

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... olivine

The spectra of pyroxene (Ref. 128288) and olivine (Ref. 137044) are from the USGS spectral library (Clark et al. 1993).

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.