LIVE: Northrop Grumman's Cygnus XL spacecraft departs the ISS
TL;DR
Northrop Grumman's Cygnus XL cargo spacecraft successfully departed the International Space Station after a 175-day resupply mission, executing precision maneuvers to enter a safe disposal trajectory while honoring fallen Columbia astronaut William McCool.
🚀 Departure Sequence & Safety Protocols 3 insights
Precision robotic release
Cygnus XL was released from the Canadarm2 robotic arm at 6:06 a.m. CT while the International Space Station flew 260 statute miles above the South Atlantic.
Six-minute departure burn
The spacecraft conducted a 6-minute 40-second engine burn to establish a 24-hour safe trajectory away from the station and exit the 200-meter keep-out sphere.
Safety boundary management
Ground teams monitored Cygnus as it crossed the 200-meter keep-out sphere and approached the 4km x 2km x 2km approach ellipsoid to ensure collision-free separation.
👨💻 Mission Control Operations 2 insights
Ground team leadership
Flight Director Garrett Hayne led the operation from Houston alongside CAPCOM Aaron Edwards and Robo Flight Controller Casey Chen managing the Canadarm2.
Multi-agency coordination
Visiting Vehicle Officers M Nicholas Lopez and Nate Yotalto coordinated with Northrop Grumman's Virginia facility while ESA astronaut Sophie Adenot monitored from the Cupola.
🎖️ Mission Legacy & Disposal 2 insights
Honoring William McCool
NASA astronaut Jack Hathaway rendered departure honors for the SS William McCool, named after the Columbia STS-107 pilot, noting their shared background as Eagle Scouts, Naval Academy graduates, and naval aviators.
Atmospheric trash disposal
After delivering thousands of pounds of supplies during its 175-day stay, Cygnus will de-orbit on March 14th to burn up over the Pacific Ocean, disposing of several thousand pounds of station trash.
Bottom Line
Commercial cargo vehicles like Cygnus provide essential end-to-end logistics for the ISS, delivering critical supplies and enabling hygienic trash disposal through controlled atmospheric re-entry.
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