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SpaceX launches fourth batch of SDA data transport satellites

Leading SDA's Tranche 1 deployment

The U.S. Space Force's Space Development Agency (SDA) launched its fourth batch of Tranche 1 data transport satellites on Oct. 10. The 21 Northrop Grumman-built spacecraft bring the total on-orbit Tranche 1 satellites to 84.

Updated 1 hour ago

Notable Quotes

This launch marks the delivery of satellites built by the third of four vendors selected to field Tranche 1 of the proliferated LEO architecture.

from SpaceX launches fourth batch of SDA data transport satellites · Updated 1 hour ago

It's one thing to go through launch and early ops of one, two, maybe even three or four satellites. Twenty-one is a completely different ball of wax.

from SpaceX launches fourth batch of SDA data transport satellites · Updated 1 hour ago