July 01, 2013

Planet Labs will launch 28 cubesat satellites in one rocket launch next year

Planet Labs hitches rides on commercial rockets made by the likes of Orbital Sciences (ORB) and SpaceX, and has its devices ride as secondary payloads to larger, more expensive satellites.

CubeSats can take pictures, perform science experiments, and communicate with Earth. They just do so way cheaper than traditional gear by playing off increasingly powerful consumer electronics and free software, such as the Linux operating system.

Planet Labs aims to provide frequent snapshots of the planet, allowing users to track changes—from traffic jams to deforestation—in close to real time.

Planet Labs’ satellites will use moderate resolution, making out objects three to five meters wide. But thanks to the sheer number of satellites, the fleet should be able to take more frequent snapshots of the globe.


Planet Labs plans to launch a constellation of Earth-imaging satellites, each consisting of one or more CubeSat units like the one shown here.



There they will orbit at an altitude of 400 kilometers, powered by solar panels.

The satellites will send their images to at least three ground stations—two in the U.S. and one in the U.K. The data will be processed and uploaded for use by customers almost immediately. “If an event happens, like a fire, we have fresh imagery … to understand what’s happening,” says Schingler.

The satellites, which have no propulsion systems, should stay in orbit for two to five years before losing speed to atmospheric drag so that they fall toward Earth and burn up, the company says.

SOURCES - Planet Labs, Business Week





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