MONITOR-E 1, also known as Monitor-E No. 1, is an Earth Observation satellite launched on August 26, 2005, from the Plesetsk Cosmodrome LC133/3 launch pad using a Rokot launch vehicle. Manufactured by KHRR and owned by the same entity, this satellite has a configuration known as Yachta-Bus with dimensions of 2 meters in length and diameter, and a span of 4 meters. It features a dry mass of 750 kilograms, which is also its launch mass. The satellite's power source includes two deployable solar arrays and batteries. Its mission involves Earth Observation using the 98M No. 26701 payload. MONITOR-E 1 is equipped with SPT-100 Stationary Plasma Thrusters for propulsion and has a box shape with two panels, measuring an RCS of 2.6991. The satellite's operational lifetime was projected to be five years.