| Date/time (local) | Latitude | Longitude | Notes |
|---|---|---|---|
| 01/20/20 06:10:24 | 34.1098 | -119.7742 | Start of persistent 200 Hz pulses |
| 01/20/20 06:25:24 | 34.1098 | -119.7742 | Continue 200 Hz signals |
| 01/20/20 07:25:24 | 34.1098 | -119.7742 | 500 Hz signals in panels 4&15 |
| 01/20/20 07:40:24 | 34.1098 | -119.7742 | Many faint 500 Hz pulses |
| 01/20/20 09:10:24 | 34.1098 | -119.7742 | Fairly strong sporadic Hf signal in panel 2 |
| 01/20/20 16:10:24 | 34.1098 | -119.7742 | Very faint signals in panels 13&15 could be humpback but much too faint to be convincing |
| 01/20/20 18:55:24 | 34.1098 | -119.7742 | Regular 50Hz pulses in panels 4-5 |
| 01/20/20 20:25:24 | 34.1098 | -119.7742 | Repeated 50Hz pulses |
| 01/20/20 20:40:24 | 34.1098 | -119.7742 | More 50Hz pulses |
| 01/20/20 20:55:24 | 34.1098 | -119.7742 | More 50Hz pulses |
| 01/20/20 21:10:24 | 34.1098 | -119.7742 | 50Hz pulses panel 1-3 |
| 01/20/20 21:25:24 | 34.1098 | -119.7742 | Several very long flat 600Hz tones |
| 01/20/20 21:40:24 | 34.1098 | -119.7742 | Several 400Hz long flat tones |