Each satellite in ST-5 has a Mongoose V Processor, which is a MIPS R3000 variant.

• https://science.nasa.gov/mission/space-technology-5/
• http://ipinspace.gsfc.nasa.gov/documents/A_05_Ferrer.ppt
• http://isandtcolloq.gsfc.nasa.gov/spring2006/presentations/smithandwilmot.pdf
• http://www.rtems.org/ml/rtems-users/2006/july/msg00042.html