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Rocket LabElectronUnknown Pad, Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand
TSIS-2
Launch window
No countdown — this launch time is not yet known to the minute.NET Q1 2027Add to calendar
Summary
TSIS-2 is expected to launch on a Rocket Lab Electron from Unknown Pad, Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand in Q1 2027. It is Rocket Lab's 111th launch, 2nd this year and humanity's 7,559th orbital launch attempt. It is planned as the 111th Electron flight and the 2nd this year. The payload is bound for Sun-Synchronous Orbit (SSO).
- Watch
- No webcast announced yet.
- Vehicle
- Electron · Rocket Lab
- Booster
- No booster details available.
- Mission
- Astrophysics · Sun-Synchronous Orbit (SSO)
- Milestone
- Planned as the 111th Electron flight · 2nd this yearRocket Lab's 111th launch2nd this yearhumanity's 7,559th orbital launch attempt28th orbital launch attempt this year
Flight preview
About this launch
The Total and Spectral Solar Irradiance Sensor 2 (TSIS-2) is a satellite designed by NASA to measure the Sun's energy input to Earth. TSIS-2 comprises two instruments, the Total Irradiance Monitor (TIM), and the spectral Irradiance Monitor (SIM). TIM measures total brightness and SIM measures spectral irradiance over a wavelength range that includes 96% of the energy in the solar spectrum. Both instruments are similar to those used for the TSIS-1 mission onboard the International Space Station.
News
Rocket Lab wins NASA award for three Electron launchesNASA has selected Rocket Lab to launch a pair of science missions on three Electron rockets in 2027.
NASA Selects Rocket Lab to Launch Sun, Earth Science MissionsNASA has selected Rocket Lab to provide the launch service for both the agency’s PolSIR (Polarized Submillimeter Ice-cloud Radiometer) and Total and Spectral Solar Irradiance Sensor-2 (TSIS-2) missions. The two selections are part of NASA’s Venture-Class Acquisition of Dedicated and Rideshare (VADR) launch services contract. This contract allows the agency to award fixed-price indefinite-delivery/indefinite-quantity launch […]
Pad
Unknown Pad, Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand
Planned as the 11th launch from Unknown Pad, 2nd this year · 95th from Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand
0 launches from this pad · 84 from Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand
61 days after the previous launch from this pad
All launches from Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand
Updates
Questions
When does TSIS-2 launch?
TSIS-2 is scheduled in Q1 2027.
Where can I watch TSIS-2 live?
No webcast has been announced yet.
What rocket is launching TSIS-2?
Electron, flown by Rocket Lab. Electron spec sheet
Where is TSIS-2 launching from?
Unknown Pad, Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand.
What orbit is TSIS-2 going to?
Sun-Synchronous Orbit (SSO), a astrophysics mission.