We intend to observe the full lightcurve of Vesta in the FIR spectral 
range from 20 to 200 mu. The range from 46.1 to 178 mu will be observed 
by LWS fixed grating scans, giving 10 spectral datapoints. The PHT-filters 
at 20, 160 and 200 mu will extend the spectral range to the maximum of the 
SED and to 200 mu, where the S/N for LWS becomes small.