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The coma of comet 67P/Churyumov-Gerasimenko has been probed by the Rosettaspacecraft and shows a variety of different molecules. The ROSINA COmetPressure Sensor and the Double Focusing Mass Spectrometer provide in-situdensities for many volatile compounds including the 14 gas species H2O, CO2,CO, H2S, O2, C2H6, CH3OH, H2CO, CH4, NH3, HCN, C2H5OH, OCS, and CS2. We fit theobserved densities during the entire comet mission between August 2014 andSeptember 2016 to an inverse coma model. We retrieve surface emissions on acometary shape with 3996 triangular elements for 50 separated time intervals.For each gas we derive systematic error bounds and report the temporalevolution of the production, peak production, and the time-integrated totalproduction. We discuss the production for the two lobes of the nucleus and forthe northern and southern hemispheres. Moreover we provide a comparison of thegas production with the seasonal illumination.

The gas production of 14 species from comet 67P/Churyumov-Gerasimenko based on DFMS/COPS data from 2014-2016