FLOCK 4P-1, also known as Flock 4p-1, is a CubeSat (3U) satellite manufactured by PLAN and owned by the same entity. It was launched on November 27, 2019, from SRILR using the PSLV-XL launch vehicle. The satellite has dimensions of 0.3 meters in length and 0.1 meters in diameter with a span of 0.3 meters. Its dry mass is 5.7 kilograms, which is the same as its launch mass. Equipped with PS0, PS1 or PS2 imaging payload (Dove 2277), it operates primarily for technology demonstration purposes. Power is provided by solar cells and batteries. The expected lifetime of FLOCK 4P-1 ranges from about one year in ISS orbit to 2-3 years in SSO.