Metadata (included also inside the file): Spacecraft: Suomi 100 Name of the instruments: HEARER Instrument type: Radiospectrometer Measurement day: Dec. 9, 2020 HEARER's data file ID: m1_1607509173 Data: the 1st column: The number of the data point (an integer between 280000 - 319999) the 2nd column: Observation (an integer): Measurement frequency: 7.953 MHz Data rate: 1000 data points per a second The file prepared by Esa Kallio (esa.kallio@aalto.fi), Aalto University, Finland, on Sep. 8, 2022 Miscellanous: (the number of the data point, -observation) plots can be found from the publication Kallio et al., Radar – CubeSat Transionospheric HF Propagation Observations: Suomi 100 - Satellite and EISCAT HF Facility, Radio Science.

2022