On sol 368 (August 19, 2013), Curiosity watched Phobos transit the Sun with its Mastcam. At the same time, the rover used its Hazard Avoidance Cameras or Hazcams to watch Phobos' shadow darken the landscape. Hazcam cannot take repeat images as rapidly as Mastcam; only two Hazcam frames document the darkening of the landscape during the eclipse.
The animation presently only includes thumbnail images from Mastcam. Thumbnails are one eighth the full resolution of the camera. This animation will be replaced with a new one once the full-resolution data are returned to Earth.
Original image data dated on or about August 19, 2013