The Fajr satellite, designated NORAD CAT ID 40387 and OBJECT ID 2015-006A, is a technology demonstration spacecraft manufactured by SUT (Sharif University of Technology) in Iran. Launched on February 2, 2015, from the Semnan Space Center using the Safir launch vehicle, Fajr has dimensions of 0.49 meters in length and diameter, with a span also measuring 0.49 meters. The satellite's dry mass is 52 kilograms, which was its launch mass as well. It relies on solar cells and batteries for power generation. With a hexagonal cylindrical shape and a radar cross-section of 0.498 square meters, Fajr's mission duration lasted approximately 24 days before it ceased operations. The satellite is owned by the Iranian Space Agency (IRSA) and was developed as part of Iran’s technology advancement efforts in space exploration.