Oceansat-3A is a part of ISRO's Oceansat program. Its main purpose is ocean observation, which includes gathering ocean color data, sea surface temperature measurements and wind vector data. No earlier than January 2027 · To Be Determined PSLV XL — Indian Space Research Organization, to Sun-Synchronous Orbit Satish Dhawan Space Centre First Launch Pad, Satish Dhawan Space Centre, India Data: Launch Library 2, The Space Devs. Image via The Space Devs.