Analysis occurrence of equatorial and low latitude ionospheric scintillations over Indonesia

Strong scintillations over Pontianak (0.2°N 109.20°E, geomagnetic latitude is 6.09°N), and over Bandung (6.5°S 107.3°E, geomagnetic latitude is 16.5°S) was compared to find out the spatial distribution of ionospheric scintillation. Data was obtained from GISTM GSV4004B. Percentage occurrence of strong scintillation was counted at each observation station. Result showed the occurrence of scintillation over Pontianak was higher than Bandung, but on March and on September, the occurrence of scintillation over Bandung higher than in Pontianak. Furthermore, the scintillation occurrence in March-April is higher than in September-October. Other result showed there was anomaly at August 16, 2010 related to solar activity.