Observed solar radio maps at 37 GHz on 09-04-2021: Max. Temp: 104.34 % of QSL, time: 20210409054102 (yyyymmddhhmmss), STATUS: Small activity Max. Temp: 103.90 % of QSL, time: 20210409054310 (yyyymmddhhmmss), STATUS: Small activity Max. Temp: 104.51 % of QSL, time: 20210409054517 (yyyymmddhhmmss), STATUS: Small activity QSL at 37 GHz is 8200 +/- 500 K. Detected solar events at 11.2 GHz on 09-04-2021: Check the flare profile: http://www.metsahovi.fi/Sunant/20210409.png