Name: TSIS-2 — Electron Launch
Start: 2027
Location: Pad TBD, Rocket Lab Launch Complex, Mahia Peninsula

Rocket Lab will fly a dedicated Electron launch for NASA's TSIS-2 mission from Launch Complex 1 in Mahia, New Zealand, in early 2027. TSIS-2 will measure the Sun's total and spectral irradiance at the top of Earth's atmosphere to support climate and atmospheric science.

The launch date is currently targeted for 2027.

On launch day, check back here to watch the live stream! (if available)

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Provider	Rocket Lab
Vehicle	Electron
Location	Pad TBD Rocket Lab Launch Complex, Mahia Peninsula New Zealand
All dates and times should be submitted in UTC timezone. Use Estimated Date if you don't know the official launch date and time; otherwise, use Window Opens/Closes and/or Planned T-0, which will override the Estimated Date.
— Estimated Date —
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— Window Opens —
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Time
Launch Date	2027
Launch Time
— Planned T-0 —
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— Window Closes —
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Heliophysics

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