Sustainable Land Imaging (SLI-T)
Since 1972, the Landsat series of satellites have provided multispectral measurements of land and coastal regions, the longest continuous record of Earth’s land areas from space. While Landsat data provide consistent and reliable information for scientific research, policy, and commercial uses, there has not been a robust plan to assure Landsat-like measurements in future decades. A 2013 report from the National Research Council (Landsat and Beyond: Sustaining and Enhancing the Nation’s Land Imaging Program) detailed a number of recommendations for sustainable land imaging, and a 2015 Presidential budget request for FY16 echoed the recommendations, including the investment in land-imaging technologies. In response, NASA initiated the Sustainable Land Imaging – Technology (SLI-T) program to support innovative technology development activities leading to new Landsat-like instruments, sensors, components, and measurement concepts.
The SLI-T program issued its first competitive solicitation in December 2015 and awarded six projects, out of 33 proposals received, in August 2016. The solicitation sought proposals in two categories: 1) Advanced Technology Demonstrations (ATD) that provide improved, innovative, full-instrument concepts for potential infusion into the architecture and design of Landsat-10; and 2) Technology Investments (TI) to develop and mature component or breadboard-level technologies that have long-term potential to significantly improve future land imaging instruments.
NASA Research Announcements appear in their entirety at the NASA NSPIRES [Solicitation and Proposal Integrated Review and Evaluation System] website.
SLI-T uses the NASA Research Announcement as its investment vehicle. Links to the full solicitations and awards are listed in the table below.
|Solicitation||Link to Solicitation||Link to Awards|
|Sustainable Land Imaging - Technology (SLI-T) 2015||Solicitation (link)||Awarded Projects|
For a full list of ESTO investments, across all program lines, visit the Solicitations page.
PROJECT SPOTLIGHT: Integrated Photonic Imaging Spectrometer
A team at Northrup Grumman Systems Corporation led by Stephanie Sandor-Leahy is pursuing a new integrated photonic imaging spectrometer that aims to be 7 times lighter and 25 times smaller than current instruments. To accomplish these reductions, the project is employing lithographically patterned photonic waveguide technology, which enables image acquisition in spectral bands and modes that surpass current Landsat capabilities. The planned instrument design will be manufactured using standardized, repeatable processes, enabling rapid and inexpensive reproduction and making the technology more viable for commercial applications like agriculture, biomedicine and consumer electronics.