In Focus: A Peek at Landsat 9's OLI-2 Instrument During Focal Plane Integration

In Focus: A Peek at Landsat 9's OLI-2 Instrument During Focal Plane Integration

Landsat 9 will continue the Landsat program’s critical role in monitoring, understanding and managing the land resources needed to sustain human life. To do so, Landsat 9 will carry two science instruments: the Operational Land Imager 2 (OLI-2) and the Thermal Infrared Sensor 2 (TIRS-2).
OLI-2 is being built by Ball Aerospace in Boulder, Colorado. It will capture observations of the planet in visible, near infrared and shortwave-infrared light.
Here are some photos that Ball Aerospace recently shared of its technicians working on OLI-2 in the cleanroom during focal plane integration. (The focal plane is where the instrument’s detectors are found and where the radiances to be measured are incident.)

preparing to install OLI-2's focal plane assembly
Photo credit: Ball Aerospace

⬆ Ball Aerospace technicians prepare to install the focal plane assembly, a 14-module detector array, into the Operational Land Imager 2, one of the key science instruments for Landsat 9.
 
OLI-2
Photo credit: Ball Aerospace

The Operational Land Imager 2 employs a ‘push-broom’ scanning method, a significant advancement in Landsat sensor technology that provides improved land surface information with fewer moving parts than older ‘sweeping’ method sensors.
 
inspecting the OLI-2 focal plane
Photo credit: Ball Aerospace

⬆ A Ball Aerospace technician inspects the Operational Land Imager 2 for Landsat 9 during the integration of the instrument’s focal plane assembly. Ball Aerospace designed and built the first OLI instrument for Landsat 8, which launched in 2013.
 
OLI-2 in the cleanroom
Photo credit: Ball Aerospace

The Operational Land Imager 2 will provide 15-meter panchromatic and 30-meter multi-spectral spatial resolutions along a 185-kilometer-wide swath, allowing Landsat 9 to image the entire globe every 16 days.
 
completing the OLI-2 focal plane integration
Photo credit: Ball Aerospace

⬆ At Ball Aerospace, a technician completes integration of the focal plane assembly, a key component of the Operational Land Imager 2 instrument, which will launch on Landsat 9 in December 2020.
 
 
+ More information about the Landsat 9 instruments
 
 

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