22 1001 Lisa Eirenschmalz (lisa.eirenschmalz(at)dlr.de), PI: Hans Schlager (hans.schlager(at)dlr.de) Deutsches Zentrum fuer Luft- und Raumfahrt (DLR), Institute of Atmospheric Physics, Oberpfaffenhofen, Germany 1 | HALO | CI-ITMS | Measurements of SO2 with Chemical Ionization Ion Trap Mass Spectrometry EMeRGe-EU 1 1 2017 07 11 2020 03 03 1 UTC (seconds after midnight) 1 1 99999 SO2 Mixing Ratio, (pptv) 4 final data. Please contact PI before using the data detection limit 46 pptv overall uncertainty +/- 7 % at high SO2 mixing ratios, +/- 25 % close to the detection limit EMeRGe-EU flight: No. 3 2 NO SO2 DATA AVAILABLE FOR EMeRGe-EU FLIGHT # 3 TMP (turbo molecular pump) control failed. No data available.