Issue 70

This is the Way: Satellite-to-Satellite Imaging Advances

30 Mar 2023: Maxar's WorldView-3 satellite captured high resolution imagery of LANDAST-8 in LEO. The imagery resolution varied based on the distance between the 2 objects, but was as high as 4.6cms at closest approach (91.4kms). Imaging LEO satellites would immediately yield new information regarding mission and…

30 Mar 2023: Maxar’s WorldView-3 satellite captured high resolution imagery of LANDAST-8 in LEO. The imagery resolution varied based on the distance between the 2 objects, but was as high as 4.6cms at closest approach (91.4kms). Imaging LEO satellites would immediately yield new information regarding mission and capabilities…commercial imaging of LEO satellites would likely be unclassified and therefore sharable with allies and partners.

Information in the upper-left-hand corner of the images indicates they were in fact taken on 7 Oct 2022.

-Landsat 8 was initially 129.9km from WorldView-3, other images were collected from ranges as close as 91.4km.

– LANDSAT’s distinctive bus can be seen glowing orange alongside its 9 × 0.4m deployable solar array to the left.

– The gray rectangular-shaped object to the right of the satellite is a Thermal Infrared Sensor (TIRS) used to capture thermal images.

– The other part of Landsat 8’s payload, the Operational Land Imager (OLI), captures images in the visible, near-infrared, and short-wave infrared portions of the electromagnetic spectrum.

– Maxar is in discussions with the U.S. Space Force and other agencies that could use this data to identify potential threats and monitor suspicious activity in space.

– This type of imagery also would support space traffic management and spaceflight safety in the increasingly congested lower orbits where there will be tens of thousands of satellites in the not too distant future.

– The company’s WorldView satellites would collect high-resolution images of other spacecraft and send them to the Space Force’s data repository known as the unified data library. This data library also will support the civilian space traffic management system being developed by the Office of Space Commerce.

Editor’s Note: there are other companies and countries developing these commercial capabilities, the days of relying purely on orbital analysis and curt press releases are numbered!

Landsat-8 imaged by Maxar WorldView-3 from low Earth orbit

Landsat-5 imaged by Landsat-8 in 2014

International Space Station imaged by Jilin-1 in 2018

International Space Station satellite-to-satellite image comparison