LEMUR-2-DJUPROERA (also known as Lemur-2-DJUProEra) is a 3U CubeSat satellite launched by SPIRE on September 3, 2020, from the Guiana Space Centre using the Vega launch vehicle. The spacecraft measures 0.3 meters in length and diameter with a span of 0.3 meters, has a dry mass and launch mass of 4.6 kilograms each, and is equipped with STRATOS (GPS radio occultation payload), SENSE (AIS-receiver), and AirSafe (ASD-B payload, #78 and later). It utilizes solar cells and batteries for power generation. The satellite was manufactured by SPIREG and has a box-shaped body with two panels.