Kairospace tests Dorb de-orbit device on its KSAT3U cubesat
Kairospace
South Korean startup Kairospace says its Dorb drag device more than doubled its KSAT3U cubesat's orbital decay rate.

what happened
Kairospace said it deployed its Dorb de-orbiting device, a metal-coated polymer film that expands to increase atmospheric drag, on its KSAT3U cubesat, which launched on Korea's Nuri rocket in May 2023. The company said the satellite's orbital descent rate more than doubled after deployment and that KSAT3U remained operational, transmitting images of Busan New Port afterward. Kairospace CEO Shin Kyung-woo said the company plans further ground tests in Europe as part of its commercialization effort.
why it matters
Drag-augmentation deorbit devices are a cheap, propellant-free way for smallsat operators to meet deorbit-compliance deadlines; a flight-proven demonstration from a new entrant adds to the small but growing list of commercial options for end-of-life disposal.
for who
Smallsat operators facing deorbit-compliance deadlines
signal-to-noise
quick facts
- Companies
- Kairospace
- Category
- product
- Impact
- notable
- SNR
- 3 / 5
- Event date
- 2026-08-13
- Published
- 2026-08-13 17:30 UTC