The frequency range is typically 18 (bottom) to almost 70 MHz (top of each panel), as labelled. Vertical white lines (dotted lines on light curve) indicate local sunrise and sunset (to within 2 minutes).

These data have had narrowband interference as well as background subtraction (including galactic background) performed. Residuals of the broad band of interference at 20-24 MHz are often prominent. Artefacts may include lightning (shows up as finite--width vertical lines), modulated interference across a broad band believed to be due to power lines, and broadband TV signals around 50 MHz reflected from sporadic E-layer ionization in the ionosphere.

Click on a panel to see a larger image (4 second resolution).

11-12 UT

12-13 UT

13-14 UT

14-15 UT

15-16 UT

16-17 UT

17-18 UT

18-19 UT

19-20 UT

20-21 UT

21-22 UT

22-23 UT

23-24 UT