The telescope sat on the ice for an entire year.
The scientists did quickly recover the data vaults from the NASA-funded mission, called GRIPS, which is short for Gamma-Ray Imager/Polarimeter for Solar flares. But due to incoming winter weather – summer only runs October through February in Antarctica – they had to leave the remaining instruments on the ice and schedule a recovery effort for the following year. Finally, in January 2017, it was warm and safe enough to recover the instruments.
For more information visit the NASA.gov feature.