Underneath the screen is a new navigation bar that is now touch - sensitive rather than offering hard buttons, although the retained optical navigation trackpad is still a hard button. (pocket-lint.com)
Bowman said the spacecraft is currently taking science data as well as optical navigation data, which is «very important because it is a measure of how well we are doing on that trajectory to hit that specific point at the specific time that the science team wants us to hit. (scientificamerican.com)
One month after its capture into orbit around Ceres, NASA engineers working on the Dawn mission state that the spacecraft is performing flawlessly and about to start capturing optical navigation images on April 10th. (astronomynow.com)