Manifest / 01Go
Starlink Group 15-20
Falcon 9 Block 5
ProviderSpaceX
PadSpace Launch Complex 4E
DateAug 22, 2026
Time (UTC)07:25 AM UTC
Launch clockT– to liftoff
T-:::
Confirmed to the minute00
04
08
57
Back to launches
TBD
TSIS-2
ElectronRocket LabUnknown Pad
Q1 2027 · Date and time TBD
Calendar available when time is confirmed
NextLaunch Autosequence BeginsT-02:00
Time to launch
Launch Window Confidence
46% — UncertainMission Brief
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.
PayloadTSIS-2
OrbitSun-Synchronous Orbit
CustomerRocket Lab
Stages3
PadUnknown Pad, Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand
Mission Timeline
0 / 150%Up next · Countdown
Launch Autosequence Begins
Electron enters its automated terminal countdown
T-02:00
11:58 PM UTC
- Launch Autosequence BeginsT-02:0011:58 PM UTC
- Rutherford IgnitionT-00:0211:59 PM UTC
Ground vector
Launch site
Site locked
Unknown Pad
Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand
Global range
- Latitude
- 39.261°S
- Longitude
- 177.866°E
Range Weather
Launch commit criteria
Clear
Watch
TrackingNo active constraints
Weather Rules
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
Provider
Rocket Lab
Profile →USA • Founded 2006
Rocket Lab is an American aerospace manufacturer with a wholly owned New Zealand subsidiary. The company develops lightweight, cost-effective commercial rocket launch services. The Electron Program was founded...
Schedule History
Only meaningful launch-time and status changes are shown.
Dec 3112:00 AM
Mar 3112:00 AM
Schedule updated
