By Tibi Puiu,
Published by ZME Science, 24 October 2024
A communications satellite designed and built by Boeing has disintegrated in orbit, marking another setback for the aerospace giant as it grapples with multiple crises.
The satellite, known as Intelsat 33e, was operated by Intelsat, a major company in global satellite communications. Its sudden failure has disrupted services for customers across Europe, Africa, and parts of the Asia-Pacific region.
“We are coordinating with the satellite manufacturer, Boeing, and government agencies to analyze data and observations,” Intelsat said in a statement. The company has declared the satellite a total loss and is working to move customers to other satellites in its fleet or to third-party spacecraft.
A Dangerous Satellite Failure
The disintegration of Intelsat 33e has prompted an immediate investigation. Intelsat has set up a Failure Review Board to determine the cause of the anomaly, while Boeing is involved in the analysis alongside government agencies.
Adding to the concern, the U.S. Department of Defense’s space-tracking website, SpaceTrack, confirmed the satellite’s breakup. An alert on the platform stated that the U.S. Space Force is “currently tracking around 20 associated pieces” of debris.
Credit: Spaceflux.
This debris poses potential hazards to other satellites operating in geostationary orbit, approximately 22,000 miles above Earth. While there is no immediate danger to neighboring satellites, in time the debris may end up on a collision course with other space assets. Such collisions can create cascades of fragments that threaten other satellites and spur new collisions. This could cause a cascade of collisions until low orbit becomes unusable.
According to the European Space Agency, over 40,000 pieces of debris larger than 10 centimeters are currently orbiting Earth — and millions of smaller fragments. Tracking these objects, especially at higher altitudes, is challenging. So, the breakup of Intelsat 33e likely generated debris too small to be detected from the ground.
Even before its sudden demise, the Intelsat 33e satellite faced several setbacks. Shortly after its launch in August 2016, it experienced a problem with its primary thruster, delaying its entry into service by about three months. During in-orbit testing, they discovered a second propulsion anomaly. The satellite began consuming fuel at a much higher rate than anticipated just to maintain its geostationary position. Originally expected to function for 15 years, these issues cut its estimated service life to less than 10 years. Now, even that decade-long lifespan has been cut short by the satellite’s disintegration. And the cause is still unknown.
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