1. JD, UT times are for start of "main" spike/dip
2. Durations - from start to finish of "main" spike/dip
3. Channels seen are scaler channels where event is obvious
    a. aslt - AirShower layer low threshold (patches)
    b. asht - AirShower layer high threshold
    c. orht - Outrigger high threshold
    d. mt6, ..., mt40  - 6-pmt multiplicity, ..., 40-pmt multiplicity.