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Rewritten Article:
NASA’s attempt to save the Neil Gehrels Swift Observatory from deorbit has unfortunately failed. Despite the unsuccessful outcome, the intricate planning and execution behind the scenes has garnered praise from government and commercial space officials involved in the mission.
Initiated by Katalyst Space Technologies, the rescue mission was carried out under a $30 million contract awarded by NASA in September. Katalyst had a tight deadline of nine months to create and launch a satellite, named LINK, to intercept Swift as it orbited around 320 miles above Earth and propel it to a higher orbit.
After a successful launch on July 3, the LINK spacecraft underwent initial checkouts, but a malfunction led to it losing control a few weeks later. NASA later confirmed in August that LINK was unable to reach Swift in time, resulting in the cancellation of the rescue mission.
The efforts put into designing, constructing, and testing a satellite of LINK’s caliber were truly commendable. Such a project typically takes several years to complete from scratch. Weighing approximately half a ton at launch, LINK was equipped with electric thrusters, a robotic arm, and a large deployable solar array.
Although the LINK satellite did not make it to the Swift Observatory, the setback dealt a blow to the scientific community that heavily relies on Swift’s unique capabilities. Swift’s sensitivity to gamma rays, X-rays, and visible light, combined with its ability to swiftly observe astronomical events, has positioned it as a critical observatory for detection, particularly of gamma ray bursts, the most powerful explosions in the universe.
Regardless of the unsuccessful rescue attempt, Swift was facing a dire situation. Launched in 2004 and operating well beyond its expected lifespan, the spacecraft lacked its own propulsion system, leaving it vulnerable to the effects of aerodynamic drag in low Earth orbit. With heightened solar activity increasing drag at Swift’s altitude, its fate was sealed, hastening its eventual demise.
Source: arstechnica.com
