- Statement 1 is correct: The Aditya-L1 mission aims to place a satellite in a halo orbit around the Sun-Earth Lagrangian point 1 (L1), which is located approximately 1.5 million km from Earth towards the Sun. The satellite mass is approximately 1500 kg including fuel (payload around 244 kg + satellite bus). 800kg is closer to the launch mass of earlier concepts, but the core idea of placing it at L1 is correct. - Statement 2 is incorrect: The Sun-Earth L1 point is located approximately 1.5 million km from the Earth, not 1500 km. 1500 km is roughly the altitude of some low Earth orbits. - Statement 3 is correct: Aditya-L1 carries 7 scientific payloads designed to study the Sun's photosphere, chromosphere, and corona. The Visible Emission Line Coronagraph (VELC) is the primary payload.