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NASA’s Swift Observatory Reentered Over Indonesia After Nearly 22 Years in Orbit
Swift reentered over North Sumatra at 7:39 a.m. EST (12:39 UTC) on November 4, 2026, ending nearly 22 years in orbit.
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- Swift reentered over North Sumatra at 7:39 a.m. EST (12:39 UTC) on November 4, 2026, ending nearly 22 years in orbit.
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openai.comCreate a landscape editorial hero image for this Studio Global article: What were the circumstances and scientific legacy of NASA’s Neil Gehrels Swift Observatory’s uncontrolled re-entry on November 4, 2026, incl. Article summary: NASA’s Neil Gehrels Swift Observatory made an uncontrolled re-entry on November 4, 2026, at 7:39 a.m. EST (12:39 UTC), over North Sumatra, Indonesia, near 3.4° north latitude, 98.6° east longitude, ending almost 22 years. Topic tags: general, general web, government. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks, charts with fake n
NASA’s Neil Gehrels Swift Observatory reentered Earth’s atmosphere over North Sumatra, Indonesia, at 7:39 a.m. EST (12:39 UTC) on November 4, 2026. The U.S. Space Force tracked the event, and NASA confirmed the time and location. The uncontrolled return ended a mission that lasted nearly 22 years—far beyond its planned two-year duration. 18
When and where Swift came down
NASA reported the re-entry near 3.4° north latitude and 98.6° east longitude, over North Sumatra. Those coordinates mark where Swift entered the atmosphere; they do not identify where any surviving debris landed. 18
The location mattered because predictions placed possible surviving fragments within an equatorial band, roughly between 20.6° north and 20.6° south latitude. Most of that band is ocean, but it also passes over land. 3
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How the forecasts compared with the actual re-entry
The forecasts shifted as Swift’s orbit decayed, and their uncertainty windows remained broad. On November 2, NASA cited a Space Force estimate of about 08:30 UTC on November 4, with an uncertainty of 11 hours. Aerospace Corporation’s estimate was 09:11 UTC, with an uncertainty of about 12 hours. Swift’s actual re-entry at 12:39 UTC fell within both windows. 5
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Jonathan McDowell reported the re-entry time and location using Space Force tracking data, but the available reporting does not provide a complete timeline of his changing forecasts or enough detail to compare them with Indonesian BRIN advisories. 10
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NASA estimated the chance of harm to anyone on Earth at about 1 in 2,100. That was an estimate of risk to people worldwide from the event, not a stated risk for each individual.
Most of the roughly 3,200-pound observatory was expected to burn up during re-entry. NASA mission chief scientist Brad Cenko said some dense tungsten components and mirror parts might survive, but the available reporting does not establish that any fragments were recovered. 18
Why the observatory’s orbit decayed
Swift’s orbit gradually lowered as atmospheric drag increased. NASA reported that by October 20, the spacecraft was about 171 miles (275 kilometers) above Earth and could no longer compensate enough to keep its telescopes steady; science operations ended shortly afterward. 16
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Intense solar activity in recent years contributed to the drag that lowered the orbit. NASA had arranged a rescue attempt to raise Swift, but the private LINK spacecraft developed problems after launch and the effort failed, leaving Swift without an orbit-boosting rescue. The available sources do not establish every technical detail of LINK’s failure, so more specific claims about its propulsion or systems would go beyond the evidence here. 13
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A two-year mission that lasted nearly 22 years
Swift launched on November 20, 2004, with a planned two-year mission to study gamma-ray bursts. Instead, it continued observing the universe for almost 22 years. NASA says the observatory detected more than 2,000 gamma-ray bursts and studied more than 1,400 supernovae. It also observed stars torn apart by black holes, monitored active galaxies, conducted an all-sky X-ray survey, and studied asteroids and comets. 19
The mission’s final months added to that record: NASA said Swift observed hundreds of science targets during its last operational period, including remnants of stellar explosions, active supermassive black holes in distant galaxies, and comets. Its final observation was on October 20, 2026. 17
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Swift’s re-entry ended the spacecraft’s observing work, but not the value of its mission. NASA says its archive preserves nearly 22 years of measurements of cosmic outbursts, multiwavelength spectra, and more than 1.5 million images for scientific study. 19
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Swift reentered over North Sumatra at 7:39 a.m. EST (12:39 UTC) on November 4, 2026, ending nearly 22 years in orbit.
Sources
science.nasa.govNASA's Swift Observatory Re-Entered Atmosphere
us.cnn.comA 3,200-pound NASA observatory is careening back toward Earth. Here’s what to know | CNN
newspaceeconomy.caNASA Updates the Swift Reentry Forecast for November 4
kompas.idThe Swift Space Telescope Could Fall in Indonesian Territory