Intelsat has confirmed that its Intelsat 33e (IS-33e) satellite suffered a catastrophic power failure while in geostationary orbit, rendering the spacecraft inoperative.
The anomaly occurred on 19 October and has disrupted services for customers across Europe, Africa and parts of the Asia-Pacific region.
Intelsat is working with Boeing, the satellite’s manufacturer, to determine the cause of the failure. Company statements indicate a bleak prognosis: Intelsat believes it is unlikely the satellite can be recovered.
Compounding the operational setback, an Intelsat spokesperson confirmed the satellite was uninsured at the time of the incident, exposing the company to potentially significant financial losses.
To maintain continuity of service, Intelsat has begun migrating affected customers to other satellites in its fleet and to capacity provided by third-party operators where possible.
Launched in August 2016 and entering service in January 2017, Intelsat 33e had a history of technical difficulties. Its entry into service was delayed by about three months due to problems with its primary thruster. During in-orbit testing a further propulsion issue shortened the satellite’s expected service life from 15 years to roughly 11 years.
If the satellite cannot be recovered, the loss will occur about four years earlier than even its reduced lifetime estimate, representing a substantial degradation in expected asset performance.
Intelsat 33e was the second satellite in Intelsat’s EpicNG series of high-throughput spacecraft. Losing a key node in that next-generation cluster is a serious hit to the operator’s network capacity and redundancy.
This failure follows the total loss of Intelsat-29e in 2019, which failed after roughly three years in service. Investigations of that event pointed to either a meteoroid impact or a wiring-related electrostatic discharge during heightened solar activity.
Back-to-back high-profile losses raise concerns about fleet reliability and the company’s ability to deliver steady service levels to a global customer base that includes broadcasters, mobility providers and government users.
Boeing, the manufacturer of Intelsat 33e, has also confronted multiple challenges in recent years across its aviation and space programs. In spaceflight, issues with the Starliner program resulted in changes to crew return plans, highlighting how manufacturer problems can ripple into operational and safety decisions for customers and partners.
The incident underscores the complexity and inherent risks of satellite operations and the importance of spare capacity, contingency planning and resilient supply chains within the commercial space sector.
Earlier this year, Luxembourg-based SES announced plans to acquire Intelsat in a $3.1 billion transaction intended to create a combined geostationary fleet of roughly 100 satellites. The merger aims to strengthen combined capabilities and could help address resolution and capacity gaps when individual satellites fail.
Update: Following the failure, Intelsat 33e experienced a breakup event, with the US Space Force reporting about 20 tracked debris objects associated with the satellite.
Intelsat’s IS-33e communications sat has undergone a breakup event in geostationary orbit, with US Space Force reporting 20 tracked (but not yet cataloged) debris objects. The sat was launched 2016 Aug 24 and is over the Indian Ocean at 60.1E; breakup was 0430 UTC Oct 19.
— Jonathan McDowell (@planet4589) October 20, 2024
(Photo by Kelly Sikkema)
Note: This event may require operators and space traffic monitoring organizations to track potential long-term debris behavior in geostationary orbit. Intelsat’s immediate priorities are customer migrations, investigating the cause with Boeing, and assessing commercial impacts from the uninsured loss.
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