shot, hour, minute, second, msec, gate, azimuth, elevation, afe, losdist, x, y, height, vlos, snr, qual, xdist

shot = shot number
hour = hour of shot
minute = minute of shot
second = second of shot
msec = millisec of shot
gate = lidar gate number
azimuth = scanner elevation angle (deg)
elevation = scanner elevation angle (deg)
afe = afe setting (Mhz)
losdist = distance to gate along the line of sight (m)
x = x position relative to trailer (x positive along 0 deg azimuth)
y = y position relative to trailer (y positive toward back of trailer)
height = height above ground (m)
vlos = line of sight velocity (m/s)
snr = 10*log(raw signal strength), NOT adjusted for noise
qual = quality flag (0 for now, now quality checks)
xdist = x position ignoring azimuth, I use this for plotting rhi's