OBSERVATORY UPICE APRIL 2015 CZECH REPUBLIC FREQUENCY 33 MHz OBSERVING PERIOD 33 MHz 1. - 30. 0500 1700 NO OBSERVATION 33 MHz 24. 0500 1700 25. 0500 0815 APR FREQ STATION TYPE START TIME OF DUR FLUX DENS. REMARKS 2015 TIME MAXIMUM MIN PEAK MEAN UT UT 10 33 UPIC 46 C 0800.5 0801.7 2.6 NOT 33 UPIC 45 C 0812.4 0812.7 1.2 CALIBRATED 12 33 UPIC 4 S/F 0904.5 0904.8 1.4 33 UPIC 2 S/F 0922.4 0922.5 0.6