Data checked:

Falcon 9 Block 5 | JPSS 4 (Joint Polar Satellite System spacecraft No. 4)
TBD

Falcon 9 Block 5 | JPSS 4 (Joint Polar Satellite System spacecraft No. 4)

TO BE DETERMINED
> T-MINUS (NET)
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Target time only (NET — no earlier than). This launch is not yet confirmed and may slip.

> MISSION DATA

DATEFriday, December 31, 2027
TIME12:00 AM UTC
PROVIDERSpaceX
ROCKETFalcon 9 Block 5
PADSpace Launch Complex 4E
LOCATIONVandenberg SFB, CA, USA
ORBITSun-Synchronous Orbit

> MISSION BRIEFING // EARTH SCIENCE

The JPSS constellation of satellites collects global multi-spectral radiometry and other specialized meteorologic, oceanographic, and solar-geophysical data via remote sensing of land, sea, and atmospheric properties. These data support NOAA’s mission for continuous observation of Earth’s environment to understand and predict changes in weather, climate, oceans, and coasts to support the nation’s economy and protect lives and property. NASA uses the instruments aboard the JPSS satellites to continue decades of Earth science research for the betterment of humanity. JPSS-4 carries the NASA Earth Venture mission Libera, an instrument to improve our understanding of trends in Earth’s energy imbalance and our changing climate.

> SCHEDULE & SOURCE

Source-reported status: To Be Determined. Current date is a placeholder or rough estimation based on unreliable or interpreted sources.

Launch window: 2027-12-31 00:00:00 UTC — 2027-12-31 00:00:00 UTC.

Dates and windows may change. Passing the scheduled time does not confirm a launch outcome.

Launch data from The Space Devs

Understand launch windows and orbits · Launch provider guide