tokens: The supplier shall identify the parameters that can influence the “ seen ” fluence . NOTE 1 These parameters can be shielding , view factors or mean sunlight incidence angle . NOTE 2 For example : During one year ( 8760 hours ) the solar irradiation is : · on a Geostationary cylindrical satellite whose axis is parallel to earth revolution axis , 1112 ESH on the N / S faces and about 2500 ESH on the periphery , · on the LEO ISS orbit , 2500 ESH on Ram and anti Ram , 250 ESH on nadir , 2200 ESH on zenith , and 1500 ESH on the side faces .