NASA Swift Observatory resumes scientific operations amid orbital decay

NASA’s Neil Gehrels Swift Observatory has resumed full scientific operations, including the reactivation of its Burst Alert Telescope (BAT) and the restoration of automated slewing capabilities. The BAT, which was idled in April 2026 to conserve power and minimize atmospheric drag during an attempted orbital boost, began recording radiation again on September 18, 2026. On September 21, the observatory regained the ability to automatically redirect its X-ray and Ultraviolet/Optical telescopes toward newly detected high-energy cosmic flashes.

Despite this scientific recovery, the satellite faces significant operational challenges due to orbital decay. The spacecraft is currently orbiting at approximately 325 kilometers (200 miles) above Earth. NASA officials indicate that once the altitude drops below 300 kilometers, scientific observations will likely cease. Current projections suggest the mission may reach this critical threshold between early and mid-October 2026.