LEMUR-2-ETHANOAKES (also known as Lemur-2-EthanOakes) is a CubeSat (3U) satellite manufactured by SPIREG and owned by Spire. It was launched on September 3, 2020, from the Guiana Space Centre using the Vega launch vehicle. The satellite has dimensions of 0.3 meters in length and diameter with a span of 0.3 meters, and its dry mass is 4.6 kilograms, identical to its launch mass. It is equipped with STRATOS (GPS radio occultation payload), SENSE (AIS-receiver), and AirSafe (ASD-B payload #78 and later). Power is supplied by solar cells and batteries. The satellite has a box shape with two panels.