

One of the initiatives introducedย by President Obama today at theย White House Maker Faireย is an “announcement of opportunity”ย fromย NASAย for CubeSat developersโintended to broaden the reach of existing programsย to people who have no previous experience building hardware intended for space. The call is aimed directly at the 21 โrookie statesโ with no CubeSat presence, and will leverage the Space Grant network of colleges and universities.
There have been people building amateur satellites since 1960. The first amateur satellite, AMSAT‘sย OSCAR 1, was flown as a secondary payload toย Discoverer 36ย onboard a Thor-Agena rocket in December 1961โjust four years after the launch of the world’s first satellite, Sputnik I, by the Soviet Union.

Every launch vehicle has ballast onboardย used to trim the flight characteristicsโintended to move the centre of mass towards the middleย of the rocketโusually the weight is a piece of leadย orย something similar.ย The OSCAR 1 took advantage of the fact and was designed in a wedge shape to fit exactly in place of one of the weights used to balance the payload in the rocket stage. It was operational for 22 days, broadcasting “Hi” from its onboard beacon before reentering the Earth’s atmosphere
Dreamed up in the late 90’s theย CubeSatโan open source architecture that lets you pack anything you want into the 10cm ร 10cm ร 10cm cube so long as it weighs less than 1kgโhas become an accepted standard in the launch business, and makes use of exactly the same space in the rocket. But these days the microsatellites fly on mostย launches, and NASA has a mandate that every launch vehicle they charter has the ability to deploy them, providingย the opportunity for makers to build small satellites, and to demonstrate new innovative technologies and conduct scientific research in a space environment.
Deployed in orbit from a standard launcherโcalled a P-PODโwhich uses springs to pushย the microsatellites away from the primary launch vehicle, the orbit your satellite gets is entirely determined by what your rocket provider has sold you. Most likely your satellite will enter a standard 250km or so nearly circular orbit, either equatorial or polar. Such an orbit will lastโbecause of drag by the tenuous ionosphereโsomewhere between 3 and 16 weeks before the satellite will reenter the atmosphere and burn up.
“There is a big push for the miniaturization of satellites. Theย CubeSatย classification is such that a 1U CubeSat is just 10cm cubed, a 2U is 10x10x20cm, and a 3U is 10x10x30cmโyou get the idea. That really isnโt much room for all of the control systems, electrical systems, propulsion systems, etc., and donโt forget to leave room for the payload science. The use ofย Arduino, cell phones and custom miniaturized systems are in high demand. The neat thing is that the cost to build a satellite has shrunk dramatically. College students are building them as senior design projects. We hope to see a reduction in launch costs and an increase in launch opportunities so that all of these satellites can fly their science.” โ Sam Ortega,ย manager of theย Centennial Challenges Programย atย NASAโsย Marshall Space Flight Centerย in Huntsville, AL
There is a huge range of CubeSat buildsย from simple beacons, much like OSCAR 1, built by schools and amateurs in their garages, to much more complicated spacecraft testing cutting-edge technologies like new types of rocket propulsion, or even interplanetary spacecraft launched towardsย Venus.
NASA even uses the CubeSat themselves as part of its Small Spacecraft Technology Program, where they’re experimenting building satellites usingย consumer-grade, off-the-shelf technologies like smartphones and the Arduinoย platform. SkyBox Imagingโrecently acquired by Google for $500 millionโalso makes use of the standard CubeSat form factor, as does PlanetLabs who own and operate the largest constellation of Earth imaging satellites in the world.
So if you’re thinking about building a CubeSat, and you’re in one of those 21 “rookie” states, then look out for the Announcement of Opportunity later in the year from NASA.
President Obama is hosting the first-ever White House Maker Faire to recognize the contributions of makers who bring creativity and technical ability to a broad range of projects. If you are a maker or a friend of makers, please become an advocate for expanding opportunities for making and makers in your community.
To show your support for growing the maker community, we encourage you to sign the โBuilding Maker Communitiesโ pledge and put yourself on the map!
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