BIOPAN Platform

BIOPAN is an exposition device from ESA composed of two trays, where one is a lid to deployment. BIOPAN is set outside an automatic Russian satellite. It is closed during the launch and return operations.

BIOPAN" module before launch, on board with the UVolution experience, coordinated by LISA Diagram of the UVolution sample. It has two layers: one with exposed cells and other cells not exposed for control

For UVolution, thanks to a dual-layer configuration, 60 flight samples are directly exposed to the solar flux while 60 others are not exposed and are used as samples of control in flight.

The FOTON capsule was launched by a Soyuz rocket on September 14, 2007, the duration of the flight was 12 days. 120 UVolution samples have therefore stayed for 12 days (09/14/2007-09/26/2007) at an altitude of approximately 300 km on the low-Earth orbit.

Launch of the Soyuz rocket Return of FOTON on Earth, we see the BIOPAN module set outside

During these 12 days of flying in low-Earth orbit, samples are not always facing the Sun; in fact the FOTON capsule revolves around the Earth by rotations on itself. What makes the total flux of solar UV received during the experience well below the residence time in space. It is rated at 29 (+/-4.35) SCH (constant solar time) in normal incidence. During the experiment temperature ranges from-22 ° C and 30 ° C. These data are recorded on board every 10 minutes.

Recording of the temperature (° C) during the UVolution experiment. Temperatures range from-22 ° C and 30 ° C during the experiment. A rapid drop in temperature is recorded just after take-off (51 p.m.), on the other hand, a sudden increase in temperature on reentry into Earth's atmosphere (about 336 h).