SpaceX readies for satellite shake-up as it lowers orbit to boost performance.
Elon Musk's ambitious satellite constellation is set for a significant makeover. In a move aimed at increasing space safety and improving network performance, SpaceX will be reconfiguring its Starlink satellite fleet by moving about 4,400 satellites from an altitude of 341 miles (550 kilometers) to 298 miles (480 kilometers).
The maneuver, which will involve gradual adjustments to the satellites' trajectories using their plasma engines, is expected to bring a large fraction of orbital traffic closer together. While this might seem counterintuitive, it will ultimately lead to a reduced risk of collisions between satellites zipping through near-Earth space at nearly 5 miles per second.
"Starlink is beginning a significant reconfiguration of its satellite constellation focused on increasing space safety," Michael Nicolls, SpaceX's vice president of Starlink engineering, explained in a recent post. "These actions will further improve the safety of the constellation, particularly with difficult-to-control risks such as uncoordinated maneuvers and launches by other satellite operators."
By moving the satellites to lower altitudes, SpaceX hopes to minimize the impact of atmospheric drag on spacecraft failure. According to Nicolls, this could reduce the time it takes for a failed Starlink satellite to burn up in the atmosphere from several years to just a few months.
The reconfiguration also aims to ensure that any space junk generated by the satellites will deorbit as quickly as possible. The lower altitude will result in reduced air density, making the satellites more susceptible to natural reentry and reducing the need for SpaceX's atmospheric drag mitigation systems.
While the primary reason for the move is to boost performance, Musk has also cited a significant advantage of moving to lower altitudes: "beam diameter is smaller for a given antenna size." This should enable Starlink to serve a higher density of customers, as well as reduce latency in internet signals traveling between transmitters and receivers.
The shake-up comes at a time when SpaceX is preparing to launch the more powerful Starlink V3 satellite platform. With a growing fleet of 9,400 working satellites in orbit, including over 8,000 operational Starlinks, SpaceX is poised for continued expansion under its ambitious satellite constellation plans.
Elon Musk's ambitious satellite constellation is set for a significant makeover. In a move aimed at increasing space safety and improving network performance, SpaceX will be reconfiguring its Starlink satellite fleet by moving about 4,400 satellites from an altitude of 341 miles (550 kilometers) to 298 miles (480 kilometers).
The maneuver, which will involve gradual adjustments to the satellites' trajectories using their plasma engines, is expected to bring a large fraction of orbital traffic closer together. While this might seem counterintuitive, it will ultimately lead to a reduced risk of collisions between satellites zipping through near-Earth space at nearly 5 miles per second.
"Starlink is beginning a significant reconfiguration of its satellite constellation focused on increasing space safety," Michael Nicolls, SpaceX's vice president of Starlink engineering, explained in a recent post. "These actions will further improve the safety of the constellation, particularly with difficult-to-control risks such as uncoordinated maneuvers and launches by other satellite operators."
By moving the satellites to lower altitudes, SpaceX hopes to minimize the impact of atmospheric drag on spacecraft failure. According to Nicolls, this could reduce the time it takes for a failed Starlink satellite to burn up in the atmosphere from several years to just a few months.
The reconfiguration also aims to ensure that any space junk generated by the satellites will deorbit as quickly as possible. The lower altitude will result in reduced air density, making the satellites more susceptible to natural reentry and reducing the need for SpaceX's atmospheric drag mitigation systems.
While the primary reason for the move is to boost performance, Musk has also cited a significant advantage of moving to lower altitudes: "beam diameter is smaller for a given antenna size." This should enable Starlink to serve a higher density of customers, as well as reduce latency in internet signals traveling between transmitters and receivers.
The shake-up comes at a time when SpaceX is preparing to launch the more powerful Starlink V3 satellite platform. With a growing fleet of 9,400 working satellites in orbit, including over 8,000 operational Starlinks, SpaceX is poised for continued expansion under its ambitious satellite constellation plans.