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Constellations
Constellation profile

PWSA Tranche 1 Tracking Layer

Canonical forecast linkage row for SDA Tranche 1 missile-warning/tracking satellites. Planned count left null because public sources conflict between 28-satellite award language and broader 35-satellite Tranche 1 architecture references.

U.S. Space Development Agency (SDA)Service start: Not stated
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Linked spacecraft
0
Rows currently linked to this constellation.
Active linked
0
Derived from linked spacecraft status.
Future linked
0
Spacecraft rows marked future.
Planned target

Forecasted Satellites

4 forecast rows linked to this constellation.

28 satellites2026Forecast table
Forecast entryYearSatellitesOrbitVehicleManufacturerMissionLaunch likelihood
SDA T1TR-A

Linked Spacecraft

0 linked spacecraft shown.

SpacecraftStatusOrbitLaunch date

No linked spacecraft

No spacecraft rows are currently linked to this constellation.

No linked spacecraft

No spacecraft rows are currently linked to this constellation.

28
0% active share against stated target.
SDA T1TR-A (x7)
2026
7
LEO
Falcon 9 FT5
L3Harris / Northrop Grumman
Missile Warning Tracking
4.85 / 5
SDA T1TR-B
SDA T1TR-B (x7)
20267LEOVulcan Centaur VC4SL3Harris / Northrop GrummanMissile Warning Tracking4.85 / 5
SDA T1TR-C
SDA T1TR-C (x7)
20267LEOFalcon 9 FT5L3Harris / Northrop GrummanMissile Warning Tracking4.85 / 5
SDA T1TR-D
SDA T1TR-D (x7)
20267LEOVulcan Centaur VC4SL3Harris / Northrop GrummanMissile Warning Tracking4.85 / 5
SDA T1TR-A
Falcon 9 FT5 · LEO
7
2026
Manufacturer
L3Harris / Northrop Grumman
Mission
Missile Warning Tracking
Launch likelihood
4.85 / 5
SDA T1TR-B
Vulcan Centaur VC4S · LEO
7
2026
Manufacturer
L3Harris / Northrop Grumman
Mission
Missile Warning Tracking
Launch likelihood
4.85 / 5
SDA T1TR-C
Falcon 9 FT5 · LEO
7
2026
Manufacturer
L3Harris / Northrop Grumman
Mission
Missile Warning Tracking
Launch likelihood
4.85 / 5
SDA T1TR-D
Vulcan Centaur VC4S · LEO
7
2026
Manufacturer
L3Harris / Northrop Grumman
Mission
Missile Warning Tracking
Launch likelihood
4.85 / 5
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