Firefly AerospaceFirefly Alpha Block 2Space Launch Complex 2W, Vandenberg SFB, CA, USA
TacSat
Image: Firefly Aerospace / Jack Beyer
Summary
TacSat is expected to launch on a Firefly Aerospace Firefly Alpha Block 2 from Space Launch Complex 2W, Vandenberg SFB, CA, USA in 2026. It is Firefly Aerospace's 10th launch, 4th this year and humanity's 7,531st orbital launch attempt. It is planned as the 2nd Firefly Alpha Block 2 flight. The payload is bound for low Earth orbit (LEO).
- Watch
- No webcast announced yet.
- Vehicle
- Firefly Alpha Block 2 · Firefly Aerospace
- Booster
- No booster details available.
- Mission
- Technology · Low Earth Orbit (LEO)
- Milestone
- Planned as the 2nd Firefly Alpha Block 2 flightFirefly Aerospace's 10th launch4th this yearhumanity's 7,531st orbital launch attempt358th orbital launch attempt this year
Flight preview
Orbit: representative
Target site default for this orbit type. Not a catalogued object; this panel switches to the tracked orbit once the object is catalogued. Ascent drawn from padside's representative profile.
About this launch
First of up to 25 launches of Low Earth Orbit technology demonstration satellites to be built and operated by Lockheed Martin. TacSat is an intelligence, surveillance and reconnaissance spacecraft with a mission to prove specialized sensing and communications capabilities on orbit. The satellite will participate in exercises that highlight cross-domain kill-web connectivity, enabling timely execution of tactical space missions. TacSat will host a proven Lockheed Martin infrared sensor on board that brings previously developed technology to space for the first time. This sensor produces high quality imagery and it can interface with federated Battle Management Command & Control (BMC2) combat systems to provide joint forces with a comprehensive view of threats. The satellite will also feature Lockheed Martin’s first 5G.MIL® payload on orbit. This provides cellular-like networking for military space assets, making satellite constellations more resilient. It also helps enable seamless connectivity with tools in the air, at sea and on land. Launch operation will also again demonstrate responsive space pre-launch operation capabilities.
Pad

Space Launch Complex 2W, Vandenberg SFB, CA, USA
Planned as the 102nd launch from Space Launch Complex 2W, 4th this year · 950th from Vandenberg SFB, CA, USA
99 launches from this pad · 919 from Vandenberg SFB, CA, USA
293 days after the previous launch from this pad
Updates
Questions
When does TacSat launch?
TacSat is scheduled in 2026.
Where can I watch TacSat live?
No webcast has been announced yet.
What rocket is launching TacSat?
Firefly Alpha Block 2, flown by Firefly Aerospace. Firefly Alpha Block 2 spec sheet
Where is TacSat launching from?
Space Launch Complex 2W, Vandenberg SFB, CA, USA.
What orbit is TacSat going to?
Low Earth Orbit (LEO), a technology mission.
