Observed solar radio maps at 37 GHz on 20-04-2021:
QSL at 37 GHz is 8200 +/- 500 K.
 
Detected solar events at 11.2 GHz on 20-04-2021:
Event 1: Flux: 152.81 SFU, time: 202104200357554995 (yyyymmddhhmmssFF), LEVEL: WEAK
Event 2: Flux: 81.54 SFU, time: 202104201419194995 (yyyymmddhhmmssFF), LEVEL: TINY
Event 3: Flux: 77.39 SFU, time: 202104201446524995 (yyyymmddhhmmssFF), LEVEL: TINY
Event 4: Flux: 74.62 SFU, time: 202104201410584995 (yyyymmddhhmmssFF), LEVEL: TINY
Check the flare profile: http://www.metsahovi.fi/Sunant/20210420.png