All launches
TBD

TacSat

Firefly Alpha Block 2Firefly AerospaceSpace Launch Complex 2W
2026 · Date and time TBD

NextMission AnnouncedT-720:00:00

Calendar available when time is confirmed
Time to launch
2026Exact time confirmed closer to launch
Launch window confidence
46% — Uncertain
Mission brief

The mission

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.

PayloadTacSat
OrbitLEO
CustomerFirefly Aerospace
Stages2
PadSpace Launch Complex 2W, Vandenberg SFB, CA, USA
Flight plan

Mission timeline

0 / 140%
Up next · Pre-launch

Mission Announced

Official mission announcement and payload assignment

T-720:00:00
12:00 AM UTC
  • Mission AnnouncedT-720:00:00
  • Vehicle RolloutT-48:00:00
  • Wet Dress RehearsalT-24:00:00
The range

Where it leaves Earth

Launch site

Ground vector

Site locked

Space Launch Complex 2W

Vandenberg SFB, CA, USA

Global range
SITE LOCK
Latitude
34.756°N
Longitude
120.622°W

Can I see this?

Distance and a plain visibility call from a place you choose. Trajectory is not modeled — night launches travel farther across the sky than daylight ones.

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Range weather

Launch commit criteria

Clear
Watch
TrackingNo active constraints
Weather rules

Clear — tracking no weather issues at this time.

Primary concern
No weather issues
Rule count
0
Temperature
Not reported
Surface wind
Not reported
Window

12:00 AM UTC – 12:00 AM UTC

Hardware

Vehicle & provider

Vehicle

Firefly Alpha Block 2

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Height31.6 m
LEO Payload1,030 kg
Launches7
Successes4
Provider

Firefly Aerospace

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USA • Founded 2014

Reliability

Schedule history

No meaningful launch-time or status changes recorded.