../ 2026-07_Freq,U1_rms,U2_rms,U3_rms_1s.parquet 01-Aug-2026 01:13 25M 2026-07_all_channels_600s.parquet 01-Aug-2026 01:13 5M 2026-08_Freq,U1_rms,U2_rms,U3_rms_1s.parquet 01-Sep-2026 01:15 36M 2026-08_all_channels_600s.parquet 01-Sep-2026 01:16 7M