Notes:

Date/time (local)LatitudeLongitudeNotes
01/20/20 05:10:2434.1098-119.7742Start of persistent 200 Hz pulses
01/20/20 05:25:2434.1098-119.7742Continue 200 Hz signals
01/20/20 06:25:2434.1098-119.7742500 Hz signals in panels 4&15
01/20/20 06:40:2434.1098-119.7742Many faint 500 Hz pulses
01/20/20 08:10:2434.1098-119.7742Fairly strong sporadic Hf signal in panel 2
01/20/20 15:10:2434.1098-119.7742Very faint signals in panels 13&15 could be humpback but much too faint to be convincing
01/20/20 17:55:2434.1098-119.7742Regular 50Hz pulses in panels 4-5
01/20/20 19:25:2434.1098-119.7742Repeated 50Hz pulses
01/20/20 19:40:2434.1098-119.7742More 50Hz pulses
01/20/20 19:55:2434.1098-119.7742More 50Hz pulses
01/20/20 20:10:2434.1098-119.774250Hz pulses panel 1-3
01/20/20 20:25:2434.1098-119.7742Several very long flat 600Hz tones
01/20/20 20:40:2434.1098-119.7742Several 400Hz long flat tones


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