Flight night time calculator for pilots. It's a simplified way to calculate where/what time an airplane and sun can meet. It doesn't compensate sunset/sunrise times for airplane altitude.
This is a beta version, tested just on few flights.
The logic is simple. It finds a midpoint on the route, check the time when airplane will be there and compares it with sunset/sunrise at this point. If the difference is too big it takes front/rear part of the route and check the midpoint again and again...
It will not calculate the night time if your departured before sunset and arrived after sunrise - damn who ever fly these routes
$ python ./night_time.py LKPR1720LKMT181020200401
Departure: LKPR Time: 2020-04-01 17:20 IATA: PRG City: Prague
Arrival: LKMT Time: 2020-04-01 18:10 IATA: OSR City: Ostrava
Distance: 151nm Flight time: 0:50:00
Departure Sunrise: 2020-04-01 04:08 Sunset: 2020-04-01 18:05
Arrival Sunrise: 2020-04-01 03:53 Sunset: 2020-04-01 17:49
Flight from day to night, night landing
Departure lat/lon: 50.10 14.26 | Arrival lat/lon: 49.70 18.11
lat lon dist time on route flt time sunset diff (min)
49.91 16.19 75.67 2020-04-01 17:45 0h 25m 2020-04-01 17:57 -12.60
49.81 17.15 113.51 2020-04-01 17:57 0h 37m 2020-04-01 17:53 3.85
49.86 16.67 94.59 2020-04-01 17:51 0h 31m 2020-04-01 17:55 -4.38
49.84 16.91 104.05 2020-04-01 17:54 0h 34m 2020-04-01 17:54 -0.27
Night time: 0h 15mInput parameter format is AAAABBBBCCCCDDDD[YYYYMMDD] where
- AAAA - ICAO departure airport
- BBBB - departure time in UTC
- CCCC - ICAO arrival airport
- DDDD - arrival time in UTC
- YYYYMMDD - flight date, optional if you calculate the night time for today's flight
There is a json file with ICAO airfield identificators with some additional data (like Lat and Lng). I have no idea how old is it, so might be some data is not fresh or missing