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Dawn Journal

Dawn Journal: Cruising Past Mars' Orbit

Marc Rayman • June 30, 2008

Now using an ion thruster that had been powered off since October, Dawn continues to make steady progress on its journey deeper into space.

Dawn Journal: Ion Propulsion

Marc Rayman • May 29, 2008

The Dawn mission continues smoothly, as the spacecraft reliably thrusts with its ion propulsion system, demonstrating all the patience of a...well, of an ion-propelled spacecraft!

Dawn Journal: Software Updates

Marc Rayman • April 23, 2008

Dawn continues its powered flight, having accumulated more than 100 days of ion thrusting since its launch nearly seven months ago. All systems are healthy as the probe patiently and persistently propels itself through the solar system.

Dawn Journal: One AU from Earth

Marc Rayman • April 23, 2008

Dawn is as far from Earth as the Sun.

Dawn Journal: Backup Camera Checks Out

Marc Rayman • March 03, 2008

Treating intercalary days just as it does most other days in its interplanetary cruise, today Dawn continues patiently and ever-so-gently reshaping its orbit around the Sun with the delicate yet persistent push from its ion propulsion system.

Dawn Journal: Safely Cruising

Marc Rayman • February 01, 2008

Now in interplanetary cruise, the Dawn spacecraft is following a much more leisurely pace than the one it maintained during the initial checkout phase of the mission.

Dawn Journal: Checkout Complete, Interplanetary Cruise Underway

Marc Rayman • December 18, 2007

After the remarkably successful initial checkout phase, Dawn is now in the interplanetary cruise phase.

Dawn Journal: Halfway Through Checkout

Marc Rayman • November 14, 2007

Now more than halfway through its 80-day initial checkout phase, the Dawn spacecraft continues to please its fans in mission control and throughout much of the rest of the universe.

Dawn Journal: Testing, Testing, Testing

Marc Rayman • October 26, 2007

Dawn's checkout phase continues to go very well. The spacecraft is healthy as it and Earth travel their separate ways, separating at almost 1 light second per day.

Dawn Journal: Firing Up the Ion Propulsion System

Marc Rayman • October 09, 2007

Joining an elite club among spacecraft, Dawn successfully fired up its xenon ion propulsion system on October 6.

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