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Innovative system retrieves SuperBIT data despite landing damage

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Researchers have successfully demonstrated a new recovery system for preserving the data gathered by the Super Pressure Balloon Imaging Telescope (SuperBIT). 

Launched by NASA in April of this year from New Zealand’s Wānaka Airport, the telescope was suspended beneath a helium-filled balloon, equivalent to a sports stadium. 

This huge balloon provides a stable and prolonged observational platform by floating in Earth's atmosphere at high altitudes. It went around the world 5.5 times. 

Unfortunately, the telescope encountered damage during a landing in southern Argentina; nonetheless, scientists could retrieve the data thanks to this new system. 

“Our telescope got to the point where it was completely destroyed, and we lost high bandwidth communications, so not only did the Data Recovery System work; it was really quite essential to the mission’s success,” said Ellen Sirks, who led the development, in an official release. 

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“When you're dropping something from the sky, in our case from 33 kilometers, there's always a chance that something goes wrong, so recovery packages are quite essential to keep your data safe,” added Sirks. 

The data consists of dark matter distribution information

Developed by researchers from the University of Sydney, this system enabled the recovery of gigabytes of data after the communication failed and the telescope was damaged.

According to the official statement, two Data Recovery System packages containing over 200 gigabytes of the telescope's data descended with a parachute and landed securely.

Dark matter is an enigmatic stuff that does not emit, absorb, or reflect light, making it difficult to detect. Although it does not interact with light, physicists infer its existence through its gravitational effects on visible matter. 

Innovative system retrieves SuperBIT data despite landing damage
Internal view of the Data Recovery System.

Sirks et al. 

The Data Recovery Systems consist of compact computers equipped with SD cards for data storage, a custom "find my phone" satellite link, and parachutes. These components are placed in watertight foam casings. 

Typically, data from a balloon-based mission is relayed by satellite. However, effective and quick data downloads frequently need "line-of-sight communication," which is not always possible. 

Furthermore, balloon-based observations provide space telescope quality at a substantially cheaper cost.

“In our case, we were getting so much data per night that it would just be incredibly slow and expensive to retrieve this data mid-flight. At the moment, the most efficient way for us to download data is to copy it onto an SD drive and just drop it to Earth which is kind of crazy, but it works well,” said Sirks. 

The results were published in the journal Aerospace.

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