October 9, 2018 — Dawn Healthy, Productive and Almost Finished
Dawn is continuing to explore Ceres. In this final phase of the mission, it dives down to just 22 miles (35 kilometers) above the alien terrain every 27 hours and acquires a wealth of data. The spacecraft has been executing all of its assignments perfectly.
Any day now, Dawn will exhaust the last of its hydrazine propellant, which is essential for controlling its orientation. The two August Dawn Journals describe how this will end the mission. The September Dawn Journal, recognizing the 11th anniversary of the spaceship's setting sail on the cosmic oceans, provides an annual round-up of some aspects of this grand adventure of discovery.