Purpose of the flight and payload description
There is no data available on the purpose of the flight or the experiments performed. Below there is a link to the only known reference.
Details of the balloon flight
Balloon launched on: 11/1/1986 at 09:00
Launch site: Balloon Launch Sector, Cachoeira Paulista, Brazil
Balloon launched by: CLB / INPE
Balloon manufacturer/size/composition: Zero Pressure Balloon 74.000 m3
End of flight (L for landing time, W for last contact, otherwise termination time): 11/2/1986 at ~ 03:00
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): 18 h
Landing site: In Leme - Sao Paulo.
Payload weight: 91 kgs