fix-kestrel-overflow

Fix overflowing density altitude for the Kestrel DROP D3

So What's The Issue?

The density altitudes calculated by the device appear to overflow & wrap around somewhere near 10,600 feet, with no apparent discrepencies in any of the other measurements this value is derived from.

Ok, What's The Fix?

Offset

offset

...

Recalculate

Recalculate the density altitude values using the other measured quantities. There are two calculations available:

wet_air

Calculate density altitude from the provided station parameters, assuming moistness.

See: https://www.weather.gov/media/epz/wxcalc/densityAltitude.pdf for more information

This approach appears to most closely match the Kestrel's internal density altitude calculation. Deltas between the two values appear to be on the order of 10-20 feet.

dry_air

Calculate density altitude from the provided station parameters, assuming dry air.

See: https://en.wikipedia.org/wiki/Density_altitude#Calculation for more information

Deltas between this calculation and the Kesterl's internal density altitude calculation have been on the order of 100-150 feet.

CLI Interface

fixkestrel single

Process a single Kestrel log file.

Input Parameters

Parameter	Description	Type	Default
--log-filepath	Path to Kestrel log to parse.	Path|None	GUI Prompt
--fix-type	Log fixing method.1	str	'wet_air'

fixkestrel batch

Process a directory of Kestrel log file(s).

Input Parameters

Parameter	Description	Type	Default
--log-directory	Path to Kestrel log directory to parse.	Path|None	GUI Prompt
--log-pattern	Log file glob pattern to match.2	str	"*.csv"
--fix-type	Log fixing method.1	str	"wet_air"

1. See Ok, What's The Fix for valid fixing method specifications
2. Case file sensitivity is deferred to the host OS