Flight categories

ID	Description	Tier
ec_under	EarthCARE underpass	A
ec_track	Fly along EarthCARE track	A
ec_south	Extension (>100km) south of c_south along EarthCARE track	B
ec_north	Extension (>100km) north of c_north along EarthCARE track	B
c_north	North of center ITCZ circle	A
c_south	South of center ITCZ circle	A
c_mid	Circle within the ITCZ	A
c_atr	Circle coordinated with ATR flight legs	B
curtain	Dropsonde curtain thought the ITCZ	B
sar_under	SAR coordination	B
pace_under	PACE coordination	B
gpm_under	GPM/Radar coordination	B
meteor	RV Meteor coordination	B
ocsm	Ocean Science Center Mindelo overpass	B
bco	Barbados Cloud Observatory overpass	B
c_cloud	Circle a cloud	B
radar	Radar calibration	B
in_cloud	In-situ cloud measurements	B
spiral	Spiral ascent/descent	B
spiral_mindelo	Spiral ascent/descent over Mindelo supersite	B
cirrus	Cirrus transmissivity	C
insitu_aerosol	In-situ aerosol measurements	C