The data captured here is one of the outputs of a September 2023 test conducted at NASA's Jet Propulsion Laboratory of a state-of-the-art imaging spectrometer instrument, which will measure the greenhouse gases methane and carbon dioxide from space. The instrument successfully detected the presence of methane (dark blue line near the top of the rainbow band), a greenhouse gas, in a sample cylinder.

The rainbow band shown on a screen here is a measure of the intensity of a spectrum of light. Blue is low intensity and red is high intensity.

Designed and built by JPL, imaging spectrometer will be part of an effort led by the nonprofit Carbon Mapper organization to collect data on greenhouse gas point-source emissions. The information will help locate and quantify "super-emitters" – the small percentage of individual sources responsible for a significant fraction of methane and carbon dioxide emissions around the world.

The organization is leading the development of the Carbon Mapper constellation of satellites supported by a public-private partnership composed of Planet Labs PBC, JPL, the California Air Resources Board, the University of Arizona, Arizona State University, and RMI, with funding from High Tide Foundation, Bloomberg Philanthropies, Grantham Foundation for the Protection of the Environment, and other philanthropic donors.