NASA's PACE satellite launched in early February 2024, to study the health of the Earth's oceans, land, and atmosphere. As data has been collected, the next step is to validate the measurements provided by this data.
For the entire month of September, "the mission’s biggest validation campaign, called PACE Postlaunch Airborne eXperiment (PACE-PAX)" will consist of scientists taking measurements from ships and aircraft from three different locations in California. As Dr. Cetinic' states, "Understanding the accuracy of the view from the satellite is important, so we can use the data to answer important questions about climate change."