The correlations of space weather and satellite anomalies: RASAT

The needs of modern human for remote sensing and information transfer have been increasing rapidly. To meet that, also the number of the modern spacecrafts has been increasing along with their capabilities and complexities. However as the capabilities of their electronics go up, the sensitivity to radiation effects also go up, which means the hardness of the electronics inside the spacecrafts decreases. Space weather is a term which refers to the dynamic, highly variable conditions in near-Earth space and the space from the sun's atmosphere to the earth's. The quick changes in the magnetosphere, ionosphere and thermosphere affect the performance of the space electronics negatively and induce malfunctions. In most cases the effects can be disregarded, but occasionally they can have severe results leading to data loss, communication breakdowns, system failure or in worse the total loss of satellite. Beside the fact that the ecomic impacts are crucial, They can be even life threatening for manned space missions. Therefore, space weather elements have to be properly identified in order to assign each possible system anomaly and accurate assesment of cause and effect. The main focus of this work is to review documented operational anomalies for Turkish Remote Sensing Satellites of RASAT, by assessing the identification and estimation of potential source of space weather agents. So that more qualified, more secured, more resistant against space weather satellites will be able to be produced in the future.