Excited to announce 2nd successful #T0 launch of #PWSA SVs. 13 SVs included Transport and Tracking sats. More info: sda.mil/on-orbit/. Photo cred: @SpaceX #SemperCitius
Space Development Agency
500 posts
Space Development Agency, U.S. Department of Defense. Engagement is not endorsement.
- UPDATE: SpaceX will not make an attempt for SDA's Tranche 0 launch today (3/31), as previously scheduled. They are working quickly to resolve issues discovered during yesterday's launch attempt. We will provide add'l updates as soon as possible. #SemperCitius
- Tranche 1. Tranche 1 of the #PWSA will begin launch September 2025, with a cadence of approximately one per month over the next 10 months until the initial warfighting constellation is delivered on orbit. Stay tuned! #SemperCitius #Defense #Industry #Satellites #Space #USSF
- Press release announcing successful Space Development Agency (SDA) Tranche 0 initial launch is live now on @DeptofDefense website: defense.gov/News/Releases/… #SemperCitius #PWSA #ClearforLaunch
- @RocketLab announced intentions to acquire Geost, an electro-optical & IR payload development & manufacturing company. This marks their formal entry into the satellite payload segment, generating additional options among end-to-end providers of space solutions. #TradeSpace
- Riddle me this. SDA has some exciting news, but we aren’t going to make it obvious. If you want to know what we're up to over the next few weeks, follow us! #SemperCitius #PWSA #Defense #Industry #Satellites #Space #USSF
- Today, SDA announced the award of a prototype OTA agreement with a total value of approx. $515M to build and operate 18 additional T2TL - Beta variant prototype space vehicles. We are excited to get to work with @RocketLab! #TeamSDA #SemperCitius #Space #PWSA #Satellites #USSF
- I warn of the missiles that rise in their flight, And target beyond what is hidden from sight. #SemperCitius #PWSA #Defense #Industry #Satellites #Space #USSF
- Tranche 0 Update: Good news from #PWSA Tranche 0 Tracking Layer! First Tracking sats, built by @SpaceX, achieved first light: infrared images using wide-field-of-view sensors. They are in their final orbit and ahead of schedule. (2 of 9) #SemperCitius #space #defense #satellites
- SDA successfully launched 21 Tranche 1 satellites into low-Earth orbit at 7:12 a.m. PT today from Vandenberg Space Force Base, CA, using SLC 4E. sda.mil/space-developm… 📷: @SpaceX Falcon 9R with encapsulated Tranche 1SVs on the launch pad at VSFB, CA. #SemperCitius #PWSA #space
- I am a web of hundreds, yet not spun by a spider. Linked to the cosmos, a silent sky-rider. #SemperCitius #PWSA #Defense #Industry #Satellites #Space #USSF
- Here we go! First T1 launch planned on/or about Sept. 10, 2025, targeting 7:12 AM PT, from CA. Launch 1 will deploy 21 Transport Layer SVs provided by @YorkSpaceSystem on a @SpaceX Falcon 9 reusable rocket. Livestream here: spacex.com/launches/sda-t… #sempercitius #goforT1launch
- I am built for the fighter to see and to know. Connecting the sensors, to all points below. #SemperCitius #PWSA #Defense #Industry #Satellites #Space #USSF
- I fly in low circles, not distant, not high. Delivering at speed where decisions rely. #SemperCitius #PWSA #Defense #Industry #Satellites #Space #USSF













