Showing posts with label Picosatellite. Show all posts
Showing posts with label Picosatellite. Show all posts

Monday, February 14, 2022

The first illegal satellite launch in history

Normally when I read about LoRa, I am reading a story about IoT devices in a smart-home installation, and always in the future-tense. As of late a few LoRa devices have made it to market, mostly bleeding edge makes of dubious origin. Choovio, for example, has a door sensor and a leak sensor. They don't have a thermostat, but a temperature sensor. There are a few makes of water meters out there as well. There's a selection of even more anonymous brand LoRa devices shipping directly from China on Alibaba.com.

LoRa is a real radio protocol, but it's application is still mostly hypothetical until a major brand releases a fully supported, and more commercially viable home device. It needs to be robust, something you might touch every day: a thermostat, light switch or dimmer. Despite all the marketing noise, we are just not there yet. I'll get into the vices and virtues of that radio protocol some other time. More here.

So in that void, the most notable LoRa radio story to date was a one-of-a-kind crime committed by the company Swarm Technologies Inc... which is owned by SpaceX. (Yeah... that guy.) It was the first illegal satellite launch in history. In fairness, Warm was only bought out by SpaceX in August 2021. This they did on their own.  On April 26th 2017, Swarm Technologies applied to the FCC for permission to deploy an experimental radio service license for its initial "picosatellites." 

Those picosatellites are  just what they sound like, little tiny satellites. These confirm to the 0.25U CubeSat form factor. That is often described as about the size of a grilled cheese sandwich: 11 x 11 x 2.8 cm, weighing only 400 grams. Starlinks' already "tiny" satellites are about 260 Kg. 

Getting back to the felons. Swarm Technologies filed for a license in the Experimental Radio Service, under Part 5 of the FCC’s rules to deploy and operate four SpaceBEEs (Basic Electronic Elements) and two earth stations. [LINK] On December 12, 2017 the FCC said no, a hard "NO" on that application. They were concerned about swarms ability to track the satellites. 

On January 8th, 2018, Swarm Technologies filed a second application for authorization to launch and operate a different set of satellites that were a more conventional small satellite size. That second application was still pending when on January 12th through the 21st of 2018, Swarm Technologies launched the original four SpaceBEEs. (This, by the way, is a terrible idea. When the FCC says no, they are quite willing to back that up.) More here.

With some irony, the FCC, wholly unaware of that January launch, granted Swarm Technologies’ second application on February 5, 2018. But by them Swarm had 4 illegally orbiting picosatellites already transmitting to and received transmissions from their two Georgia-based earth stations. 

On March 5th 2018 The FCC learned about the unauthorized launch and began an investigation. During that investigation they discovered that Swarm Technologies had also illegally performed unauthorized weather balloon-to-ground station tests, including to and from moving vehicles. 

All-in-all the FCC went light on them. No one was criminally charged. The consent decree even lightly praised Swarm Technologies for obeying the law during the course of the investigation. A convoluted wad of verbage which can only be attributed to a radical libertarian like Ajit Pai. Nonetheless the fine was a notable $900,000. This is not a record fine by any measure. The record by the way is 225 million, by comparison this was a swat on the wrist. Swarm Technologies was even permitted to continue operating the network afterward. The event, as a whole, remains a testament to the sense of entitlement and bravado commonplace among techbros.

Thursday, January 22, 2015

The Sad Tale of the KickSat Femtosatellites


It was a fine idea and they had a good plan, and just enough funding. But there are enormous graveyards dug exclusively for good ideas in our world. I'll warn you now that this tale has a sad ending.

The project was envisioned by Zachary R. Manchester. The idea was that there were advantages in the  low power and low mass of femtosatillites and picosatillites that might make orbital communications more economical and efficient. The idea isn't completely new. The airforce issued a report on the topic back in 2007. There was also project West Ford back in 1961, but let's not get into that.  He got his crowdfunded through Kickstarter. Zac asked for $30k. His Kickstarter campaign raised $74,586.


KickSat was not a production network. It was a test. Each Sprite femtosatellite was supposed to be able to transmit just a few bytes. I've read some of the submissions that were online and most were under 16 bytes in length. The little Sprites themselves were only about the size of a saltine cracker. The payload of 104 Sprite satellites was carried on a CubeSat on an ISS commercial resupply mission, SpaceX CRS-3 on April 18, 2014. But things went wrong quickly.  On April 30th the microcontroller managing the master clock reset due to a technical issue. This woudl delay the release of the individual satellites. This delay was detrimental. On May 3 Sac announced the impending doom of the project. More here.

The Master clock problem meant that the CubeSat couldn't release the 104 Sprite satellites before it burned up in the atmosphere. The unit was not designed to allow ground control to send a release command. Thsi is because the uplink radio used to trigger deployment were unable to power up. On May 14th CubeSat reentered the atmosphere and burned up. Accounts record that "virtually" all sprites were lost. However there was at least one message received.