The Proson-M1 was a two-stage meteorological sounding rocket developed by the Argentine Institute of Science and Technology for CITEFA in the 1960s, first launched on August 23, 1963, from CELPA (El Chamical).
[2] The Proson-M1 was a dual-stage design built primarily from steel (API-N80) and reinforced with duralumin fins for aerodynamic stability.
[2] Both were powered by a solid-propellant engine made of a double-base propellant consisting of nitrocellulose and nitroglycerin.
[2] Proson-M1 could reach a maximum velocity of Mach 4 and was capable of carrying payloads of up to 5 kg to 50 km.
[1] The Proson-M1 had four launches in August 23 and 26, 1963, to study flight paths using optical tracking tools like cine-theodolites.