SpaceX to launch 21 data transport satellites for Space Development Agency

SpaceX is set to launch 21 Tranche 1 Transport Layer A satellites for the U.S. Space Force's Space Development Agency. A Falcon 9 will lift off from Vandenberg, with booster B1103 flying its sixth mission and landing at LZ-4.

• The 21 T1TL-A satellites were built by Northrop Grumman
• Falcon 9 launch from SLC-4E is set for 1:17 a.m. PDT
• Booster B1103 flies for the sixth time; 668th Falcon landing expected
• Transport Layer will total 300–500 satellites at 750–1,200 km altitude