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The description on its file description page there is shown below.
Summary
DescriptionTubsat-A.jpeg
English: A "satellite built at Germany's Technical University of Berlin [...] intended primarily to test attitude control subsystems and give students practice in the design, construction and operation of a satellite."
Contained "Star Sensor, Sun Sensor, 3-Axis Magnetic Field Sensor, Magnetorquer, Store & Forward Communication." Also "testbed for some industry technology including GaAs cells and a transputer." (See NASA JPL page) Put in "near polar orbit"
The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2]