# Falcon 9 Block 5 | WSF-M2 & BLAZE-2 (USSF-178): launch

> Falcon 9 Block 5 by SpaceX from Vandenberg SFB, CA, USA. Scheduled: NET Q1 2027.

- Canonical page: https://spacenexus.us/launch/cmuf4i8s106uqqxt1cus9jrhe
- This Markdown version: https://spacenexus.us/launch/cmuf4i8s106uqqxt1cus9jrhe.md
- Data as of: 2026-11-12 02:00 UTC (last Launch Library 2 sync)
- How the numbers are made: https://spacenexus.us/launch-slips/method

## Facts

- Launch: Falcon 9 Block 5 | WSF-M2 & BLAZE-2 (USSF-178)
- Mission: WSF-M2 & BLAZE-2 (USSF-178)
- Provider: SpaceX
- Rocket: Falcon 9 Block 5
- Pad: Vandenberg SFB, CA, USA
- Country of the launch site: USA
- Date (UTC): NET Q1 2027 (2027-03-31T00:00:00.000Z)
- Status: tbd (Launch Library 2: TBD)
- Real slips recorded: 0; other date moves (placeholder rolls, firmings), not slips: 0

## Mission description

Quoted from Launch Library 2: Second Weather System Follow-on (WSF) satellite. WSF-M (Weather System Follow-on - Microwave) is the next-generation operational environmental satellite system for the Department of Defense (DoD), to replace the microwave wavelength weather forecasting capabilities of the DMSP satellites. Ball Aerospace has been selected in late November 2017 to be the prime contractor for 2 Low Earth Orbit (LEO) weather satellites with a passive microwave imaging radiometer instrument and hosted Government furnished energetic charged particle (ECP) sensor space weather payload developed by the Air Force Research Laboratory. The radiometer leverages the Ball-built Global Precipitation Measurement (GPM) Microwave Imager (GMI) instrument. This mission will improve weather forecasting over maritime regions by taking global measurements of the atmosphere and ocean surface. The launch will also include BLAZE-2, a launch opportunity for operational, research, development, and prototype small satellites from across the DoD.

## Date history

No date change recorded for this launch since our ledger began.

## Sources

- [Launch Library 2 by The Space Devs](https://thespacedevs.com): launch names, providers, rockets, pads, dates and status
- [SpaceNexus Launch Ledger (our own record of every date change)](https://spacenexus.us/launch-slips/method)
- [Mission information (link from Launch Library 2)](https://www.spacelaunchnow.me/launch/falcon-9-block-5-wsf-m2-blaze-2-ussf-178)

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- Launch facts (names, providers, rockets, pads, dates, status): Launch Library 2 by The Space Devs (thespacedevs.com), credited and not relicensed by SpaceNexus.
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