Move over, Starlink. SpaceX’s international web play might need caught the world’s consideration with its 60-satellite launch final month, however little did we all know that it had already been upstaged — a minimum of when it comes to sheer numbers. The KickSat-2 mission put 105 tiny “femtosats” into house directly months earlier, the end result of a years-long mission begun by a grad scholar.
KickSat-2 was the second try by Zac Manchester, now a professor at Stanford, to check what he believes is a vital piece of the approaching new house economic system: ultra-tiny satellites.
Sure, the four-inch CubeSat commonplace is small… and craft like Swarm Technologies’ SpaceBEEs are even smaller. But the satellites examined by Manchester are tiny. We’re speaking Triscuit dimension right here — maybe Wheat Thin, and even Cheez-It.
The KickSat mission started back in 2011, when Manchester and his colleagues did a Kickstarter to boost funds for about 300 “Sprite” satellites that might be launched to house and deployed on behalf of backers. It was a hit, however sadly as soon as launched a glitch brought about the satellites to dissipate earlier than being deployed. Manchester was undeterred and the mission continued.
He labored with Cornell University and NASA Ames to revamp the setup, and as a part of that he and collaborator Andy Filo collected a prize for their clever 3D-printed deployment mechanism. The Sprites themselves are comparatively easy issues: primarily an unshielded little bit of PCB with a photo voltaic panel, antennas and electronics on board to ship and obtain alerts.
The “mothership” launched in November to the ISS, the place it sat for a number of months awaiting a chance to be deployed. That alternative got here on March 17: all 105 Sprites have been sprung out into low Earth orbit, the place they started speaking with one another and (simply barely) to floor stations.
This isn’t the beginning of a semi-permanent thousands-strong constellation, although — the satellites all burned up just a few days later, as deliberate.
“This was mostly a test of deployment and communication systems for the Sprites,” Manchester defined in an e-mail to TechCrunch. The satellites have been testing two totally different alerts: “Specially designed CDMA signals that enable hundreds of Sprites to simultaneously communicate with a single ground station at very long range and with very low power,” and “simpler signals for short-range networking between Sprites in orbit.”
This proof of idea is a vital one — it appears logical and sensible to pack dozens or a whole bunch of these items into future missions, the place they are often launched into managed trajectories offering sensing or communications relay capabilities to different spacecraft. And, in fact, as we’ve already seen, the smaller and cheaper the spacecraft, the simpler it’s for folks to entry house for any motive: scientific, financial or simply for the heck of it.
“We’ve shown that it’s possible for swarms of cheap, tiny satellites to one day carry out tasks now done by larger, costlier satellites, making it affordable for just about anyone to put instruments or experiments into orbit,” Manchester said in a Stanford news release. With launch prices dropping, it may not be lengthy earlier than you’ll be capable of take possession of a Sprite of your personal.