This pure shade picture of the San Francisco Bay was captured by Landsat 9’s new Operational Land Imager 2 instrument. Landsat 9 which launched Sept. 27, 2021, is now in its operational section and the USGS will launch the information to the general public beginning in mid-February. Credit score: NASA/USGS
Landsat 9, a joint mission of NASA and the U.S. Geological Survey (USGS), handed its post-launch evaluation overview and is now in its operational section.
Persevering with the Landsat program’s almost 50-year report of imaging Earth from orbit, USGS plans to begin releasing Landsat 9 knowledge to the general public in early February.
Landsat 9 launched from Vandenberg House Drive Base in California on September 27, 2021. The mission staff made contact with the spacecraft shortly after it separated from the rocket faring, and ever since then has been working to check, calibrate and fee the brand new satellite tv for pc and its devices.
“The imagery from Landsat 9 is incredible,” stated Del Jenstrom, Landsat 9 mission supervisor at NASA’s Goddard House Flight Middle. “I'm extremely pleased with our joint company and contractor staff for executing a really thorough and extremely profitable on-orbit commissioning marketing campaign, bringing this vital mission into operational standing.”
One of many commissioning actions was flying Landsat 9 at an orbit under its sister satellite tv for pc, Landsat 8, imaging the identical swath of land at basically the identical time, which allowed the staff to verify that the radiometry and geometry of the information align as anticipated.
Round irrigated farm fields close to Alexandria, Egypt seem in blue on this picture captured by the brand new Thermal Infrared Sensor 2 aboard Landsat 9. TIRS-2 measures floor temperature, so the cool, irrigated fields stand out towards the hotter arid lands. Credit score: NASA/USGS
In addition they calibrated the devices by quite a lot of strategies, together with tilting Landsat 9’s spacecraft to picture the complete Moon – a gentle supply of sunshine to make sure the devices are detecting gentle constantly. That additionally confirmed that the Thermal Infrared Sensor 2 instrument, or TIRS-2, on the brand new satellite tv for pc doesn’t have the stray gentle issues that affected the primary model of the instrument on Landsat 8. This may enable researchers to take extra correct floor temperature measurements, stated Jeff Masek, NASA’s Landsat 9 mission scientist.
Masek stated TIRS-2 and Landsat 9’s different instrument, the Operational Land Imager 2, or OLI-2, are each performing as hoped. Meaning, with each Landsat 9 and Landsat 8 in orbit, there might be high-quality, medium-resolution photos each eight days. He stated he’s wanting ahead to seeing what individuals do with the brand new knowledge of Earth’s landscapes and coastal areas.
“The Landsat person base is keen to get one other observatory that may double the frequency with which they'll get this high-quality knowledge,” Masek stated. “That is actually going to profit analysis in areas like snow cowl, crop monitoring and water high quality.”
NASA led the commissioning marketing campaign and can quickly switch operational management of the 2 Landsat 9 devices to the USGS, which can distribute and archive the information. Command of the spacecraft itself and mission might be handed over to USGS in Might, after the staff finishes a software program replace that may resolve a radiation susceptibility situation that the staff recognized throughout checkout of the information recorders. Mitigation measures proved profitable, and the software program replace will guarantee these measures proceed in automated style.
“Landsat 9 is distinctive amongst Earth commentary missions as a result of it carries the consideration to increase the 50-year Landsat observational report into the subsequent 50 years,” stated Dr. Chris Crawford, USGS Landsat 9 Challenge Scientist. “Landsat 9 enhances the spatial decision, spectral continuity, and coincidental acquisition of mirrored and emitted thermal infrared picture knowledge of Landsats 1-8. Landsat 9 ensures continued 8-day international land and near-shore revisit protection partnered with Landsat 8 in orbit.”
The Landsat 9 launch was managed by NASA’s Launch Providers Program, based mostly at Kennedy House Middle in Florida. In July, the Landsat program will mark 50 years for the reason that launch of the primary Landsat satellite tv for pc. Since then, this system has offered steady protection of Earth’s land surfaces, permitting scientists and useful resource managers to trace land cowl, land use and the impacts of local weather change and monitor pure assets.
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