The payload consisted of a hard X radiation detector (20-150 KeV) with a multilayer passive collimator in order to study the properties of this type of collimators.
Balloon launched on: 7/8/1971
Launch site: Universitary City, Buenos Aires, Argentine
Balloon launched by: Instituto de Astronomía y Física del Espacio (IAFE)
Balloon manufacturer/size/composition: Zero Pressure Balloon 5.000 m3
End of flight (L for landing time, W for last contact, otherwise termination time): 7/8/1971
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