The Drag Augmentation Deorbiting System (ADEO) breaking sail was successfully deployed from the ION satellite carrier in late December 2022. A sail area of 3.6 square meters was autonomously deployed from an impressively small packing size of 10 x 10 x 10 cm to demonstrate deorbiting satellite technology.
Click here for original story, Successful in-flight demonstration of the ADEO braking sail
Source: Phys.org