Observed solar radio maps at 37 GHz on 19-04-2015: Max. temp: 108.46 % of QSL, time: 20150419094456 (yyyymmddhhmmss), STATUS: Low activity Max. temp: 107.61 % of QSL, time: 20150419112733 (yyyymmddhhmmss), STATUS: Low activity Max. temp: 107.66 % of QSL, time: 20150419113651 (yyyymmddhhmmss), STATUS: Low activity Max. temp: 107.88 % of QSL, time: 20150419114512 (yyyymmddhhmmss), STATUS: Low activity Max. temp: 107.60 % of QSL, time: 20150419115335 (yyyymmddhhmmss), STATUS: Low activity Max. temp: 107.33 % of QSL, time: 20150419120153 (yyyymmddhhmmss), STATUS: Low activity QSL at 37 GHz is 7800 K. Detected Callisto radio bursts (50-850 MHz) on 19-04-2015: Big burst index (>50) indicates more probable solar radio burst than RFI. Detected solar events at 11.2 GHz on 19-04-2015: Check the flare profile: http://www.metsahovi.fi/Sunant/20150419.png