{"schema_version":1,"quantity":"Effective dose, ICRP Publication 103 weighting, total cosmic radiation (galactic; solar particle events excluded)","units":{"dose":"mSv (1 mSv = 1000 µSv)","dose_rate":"µSv per hour","distance":"km","altitude":"feet"},"model":{"name":"CARI-7","developer":"US Federal Aviation Administration, Civil Aerospace Medical Institute (CAMI)","route":"Great-circle (geodesic) path between the two airports","solar_modulation":"Monthly heliocentric potential (FAA MV-DATES); a month later than the newest published value uses the newest"},"standard_flight":{"altitude_ft":35000,"airborne_minutes":"Estimated: 20 min + great-circle distance / (870 km/h ± a prevailing westerly wind of up to 75 km/h, strongest at 45° latitude, projected on the route's bearing). Eastbound is faster than westbound.","profile":"Climb up to 25 min, descent up to 17 min, the rest at cruise altitude","solar_month":"2026-08","by_altitude":[31000,33000,35000,37000,39000,41000],"series":"The same flight at 35,000 ft in the first month of every quarter","explorer":"The same flight at every altitude in by_altitude, at each month in explorer.months"},"logged_flights":{"what":"Doses the FlightDose app calculated (CARI-7) for flights its users logged on this route","thresholds":{"route_min_travellers":5,"route_min_flights":10,"period_min_travellers":5,"count_ranges":["5-9","10-19","20-49","50+"],"percentiles_published":["p25","median","p75"]},"filters":["Doses calculated with a real time in the air (cari7Details.durationMinutes present)","Doses calculated on or after 30 August 2026, when the time-in-the-air fix shipped","Flights logged before they departed are skipped (their dose used the month it was calculated in)","Internal, test and App Store review accounts excluded","Each flight joined from flights to dose_records, so a deleted flight's leftover dose never counts"],"published":"Counts as ranges; 25th, 50th and 75th percentiles only; never a minimum, maximum or any single flight"},"map_shading":"Route lines are shaded from the monthly dose-rate grid (CARI-7 location mode, 10° x 30°), scaled so each line's mean equals the route's dose rate. Shading is modelled; totals are CARI-7.","limitations":["Estimates from a model, not measurements.","One standard flight per direction: a real flight differs in altitude, time in the air, track and month.","Solar particle events (solar radiation storms) are not included.","Aircraft shielding and the individual body are not modelled. Not medical advice."],"sources":["FAA Advisory Circular AC 120-61B, In-Flight Radiation Exposure (2014)","ICRP Publication 103 (2007)","NCRP Report No. 160 (2009)","Copeland, K., CARI-7 technical reports, FAA Office of Aerospace Medicine"]}