SDA Transport & Tracking satellites
Space Development Agency satellites built at Space Park. The first 21 Tranche 1 Transport Layer satellites launched from Vandenberg on October 10, 2026, with several dozen more due over the next six months.
Timeline
Tranche 2 Transport Beta award (36 sats)AAug 2023
Tranche 2 Transport Alpha award (38 sats)BOct 2023
Selected for Tranche 3 Tracking LayerCDec 2025
First 21 Tranche 1 satellites launchDOct 10, 2026
Second plane of 21 launchesEBy Apr 2027
A Aug 2023 Tranche 2 Transport Beta award (36 sats)
B Oct 2023 Tranche 2 Transport Alpha award (38 sats)
C Dec 2025 Selected for Tranche 3 Tracking Layer
D Oct 10, 2026 First 21 Tranche 1 satellites launch
E By Apr 2027 Second plane of 21 launchesIN PROGRESS
In the News
Northrop's first 21 SDA data-relay satellites reach orbitOct 11, 2026Northrop's first 21 Tranche 1 data-relay satellites are set to fly MondayOct 2, 2026SDA aims for two more Tranche 1 launches this yearSep 16, 2026