LEMUR-2-OSCARLATOR, also known as Lemur-2-Oscarlator, is a 3U CubeSat satellite launched by SPIRE on September 3, 2020, from the Guiana Space Center using a Vega launch vehicle. The satellite has dimensions of 0.3 meters in length and span with a diameter of 0.1 meter. It has a dry mass and launch mass both weighing 4.6 kilograms. Equipped with STRATOS (GPS radio occultation payload), SENSE (AIS-receiver), and AirSafe (ASD-B payload, #78 and later), it uses solar cells and batteries for power. The satellite's shape is described as a box with two panels. It was manufactured by SPIREG and named Lemur FM119 under the mission of providing specific payloads and equipment to support various data collection tasks in orbit.