FLOCK 1E-12, also known as Flock 1e-12, is a CubeSat (3U) satellite built by PLABS for technology demonstration purposes and owned by the same entity. It was launched on November 20, 1998, from LC40 at TYSMC using a Falcon 9 launch vehicle. The satellite has dimensions of 0.3 meters in length, 0.1 meters in diameter, and a span of 0.3 meters, with a dry mass and launch mass both weighing 4.5 kg. It is equipped with PS0, PS1 or PS2 imaging payloads named Dove 0B0A for capturing Earth imagery. Its power system consists of solar cells and batteries. The expected lifetime varies depending on the orbit; approximately one year in ISS orbit and two to three years in Sun-Synchronous Orbit (SSO). The satellite's shape is described as a box with two panels, and its radar cross-section (RCS) is 0.049 square meters.