The next generation of experiments devoted to study extreme energy cosmic rays will be at satellites and space platforms. Recent experiments have show that UV light background is more complex than previous models. Therefore, the observation of transient luminous events (TLEs) at the upper atmosphere will be important. Information abouth time and space evolution of this very fast phenomena may need to be recorded, this impose requirements of a wide field of view and largest focus depht. The simplest optical design, a pinhole camera fulfils these characteristics. This pinhole camera has as photodetector a multianode photomultiplier (8x8 pixels array) that allow us to register 2-d images of TLEs. In this work we present some events recorded from Sierra Negra Volcano in Mexico and the pinhole camera in order to use it as a monitoring device.

The pinhole camera design has shown to be a fruitful configuration for studies of background light level distribution presented in the atmosphere. The calibration and performance test at the Mexican Volcano Sierra Negra, shows that its possible to detect with high confidence level the TLE and UV background light, encouraging us to propose the installation in a future satellite mission.