FLOCK 3P-57, also known as Flock 3p-57, is a CubeSat (3U) satellite manufactured by PLAN and launched on February 15, 2017, from SRILR using the PSLV-XL launch vehicle. The satellite has dimensions of 0.3 meters in length, 0.1 meters in diameter, and spans 0.3 meters, with a dry mass of 4.7 kg. It is equipped with PS0, PS1 or PS2 imaging payload known as Dove 1014 for technology purposes. FLOCK 3P-57's power system consists of solar cells and batteries. The expected lifetime ranges from about one year in an ISS orbit to two to three years in a sun-synchronous orbit (SSO). Its shape is described as box+2 pan, and it has a RCS value of 0.055.