CORONASCOPE II

Coronagraph wich creates artificial eclipses of the sun to study the corona.

Balloon launched on: 3/5/1964 at 7:00 cst
Launch site: Columbia Scientific Balloon Facility, Palestine, Texas, US  
Balloon launched by: National Center for Atmospheric Research (NCAR)
Balloon manufacturer/size/composition: Zero Pressure Balloon 3.200.000 cuft (Dacron & Mylar scrim GT-11)
Flight identification number: 35P
End of flight (L for landing time, W for last contact, otherwise termination time): 3/5/1964
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): ~ 7 h
Payload weight: 1700 pounds

During this flight Coronascope II secured 118 photographs of the solar corona from 1.8 to 5.25 solar radii from the center of the disk at an altitude of 100,000 ft.

• Coronascope II: observation of the white light corona from a stratospheric balloon Annales d'Astrophysique, Vol. 28, p.234
• The Flight Record Scientific Ballooning Nº 13, March 1964