5.17.What monitoring methods and tools are used by aircraft operators to determine emissions and non-CO2 aviation effects? Please answer using the tables below.Methods applied to determine the fuel consumption in order to determine the emissions | Number of aircraft operators using this method | Which number of aircraft operators in the second column are small emitters?Method A to determine the fuel consumption to determine CO2 emissions | |Method B to determine the fuel consumption to determine CO2 emissions | |Method A and B to determine the fuel consumption to determine CO2 emissions | |Methods applied to determine non-CO2 aviation effects | Number of aircraft operators using this method | Which number of aircraft operators in the second column are small emitters?Method C consisting of a weather-based approach to determine the non-CO2 aviation effects | |Method D consisting of location-based simplified approach to determine the non-CO2 aviation effects | |Own fuel-burn module as referred to in Article 56a(4), point (a), of Implementing Regulation (EU) 2018/2066 | |Tools to be applied in the monitoring of emissions | Number of aircraft operatorsThe number of small emitters using the small emitters tool (SET) to determine their fuel consumption |Number of aircraft operators below 25000 tonnes of CO2 or aircraft operators having total emissions of less than 3000 tonnes of CO2 whose emission report is generated from the EU ETS support facility independently from any input of the aircraft operator |Number of aircraft operators using an alternative method to determine the emissions of missing flights |Number of aircraft operators using the small emitters tool (SET) as referred to in Article 55(2) of Implementing Regulation (EU) 2018/2066 to determine the emissions of missing flights |Tools to be applied in the monitoring of non-CO2 aviation effects | Number of aircraft operatorsNumber of aircraft operators whose non-CO2 aviation effects report is generated from an IT tool approved by the Commission in accordance with Article 56a of Implementing Regulation (EU) 2018/2066, independently from any input from the aircraft operator. |