The combined Landsat 8 + Landsat 9 collect data every 8 days
![Landsat data archive](https://www.limko.cm/wp-content/uploads/2023/05/Landsat-Data-US-Archive-1024x841.jpg)
- Orbit Altitude: 438 miles (705 kilometers)
- Coverage of Earth: Every 16 days
- Orbit Duration: 99 minutes
- Image Data: > 700 scenes per day
- Spacecraft Speed: 16,760 mi/hr (26,972 km/hr)
- Radiometric Resolution: 14-bit
- Two instruments : OLI-2 and TIRS-2
![](https://www.limko.cm/wp-content/uploads/2023/05/Landsat-Legacy-1024x636.jpg)