GoKawiilHigh above the remote Pacific Ocean, about halfway between Hawaii and the northernmost part of Australia, an air-launched rocket fired into space on Independence Day weekend to kick off a weekslong pursuit of a NASA astronomy satellite perilously close to falling out of orbit.
The endeavor to rescue NASA’s Swift satellite is the first mission of its kind. NASA put out a call for commercial companies less than a year ago to propose how they could rapidly build and launch a small satellite to latch onto the Swift spacecraft and boost its altitude so that it doesn’t come down in a few months.
Katalyst Space Technologies responded with the best offer. NASA awarded the company a contract last September to build and launch a mission to rescue Swift. A little more than nine months later, Katalyst’s nearly half-ton Link satellite is safely in orbit. For anyone who follows the space industry, building, testing, and launching a functioning first-of-its-kind satellite of that size in less than a year is a remarkable achievement; it would usually take several years.
Getting to Swift
Technicians buttoned up the Link satellite inside the nose cone of a Northrop Grumman Pegasus XL rocket last month at NASA’s Wallops Flight Facility in Virginia. An aircrew flew the rocket and its L-1011 carrier aircraft from Virginia to the US Army’s Ronald Reagan Space and Missile Test Range on Kwajalein Atoll, a facility leased from the Marshall Islands more than 2,000 miles southwest of Honolulu.
Once there, the rocket and the L-1011 waited several days for good weather, then took off to fly to a predetermined launch zone south of Kwajalein. With everything in order and upon reaching a cruising altitude of 41,000 feet, the pilots released the 58-foot-long (18-meter) rocket at 4:36 am EDT (08:36 UTC) Friday. Five seconds later, the Pegasus XL ignited its solid-fueled first stage to begin the climb to orbit.