DAWN VIR RAW (EDR) CRUISE CHECKOUT/CALIB VISIBLE SPECTRA V1.
This data set contains the digital       numbers (DN) contained in the telemetry (TM) packages of the VIR-VIS    instrument on board of the spacecraft DAWN. The data are from the       cruise phase from launch to Vesta (Sep 2009-May 2011), and Vesta        to Ceres (Sep 2012-Dec 2014).