My process for reviewing these datasets has been to visit each link below, click "browse", read the aareadme.txt and errata.txt files, then reveiw the catalog and spot check the data. I've commented on each dataset below their line in the listing below. In reviewing these data I'll note that the documentation is in general quite good and very comprehensive. I did not do any comprehensive checks of whether the data is accurate or complete, however in my spot checks I attempted to answer the question "does this data make sense?" The higher order data products were all well described and the values appeared to make sense. I did not find any major issues with the dataset and I believe this is ready for publication. My comments below are generally minor. Please let me know if there are other things that you would like me to check for in the data. https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-2-prl-v2.0/dataset.html Rosetta-Orbiter ROSINA Prelanding 67P Raw Data v2.0 RO-C-ROSINA-2-PRL-V2.0 - No errata.txt file (I assume that if this file isn't included then there have been no errata, however it is referred to in the aareadme.txt) https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-3-prl-v2.0/dataset.html Rosetta-Orbiter ROSINA Prelanding 67P Calibrated Data v2.0 RO-C-ROSINA-3-PRL-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-4-prl-v2.0/dataset.html Rosetta-Orbiter ROSINA Prelanding 67P Resampled Data v2.0 RO-C-ROSINA-4-PRL-V2.0 - No errata.txt file - Within the aareadme.txt file for this dataset it states that this contains the "calibrated data" however the calibration files indicate that the calibrated data for COPS is not until the L3 files. It appears that the data is calibrated and uses the DFMS L3 data to produce the calibration. Some clarifcation of the verbiage may help here and maybe a short description of how the calibration is applied would be helpful. https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-5-prl-v2.0/dataset.html Rosetta-Orbiter ROSINA Prelanding 67P Derived Data v2.0 RO-C-ROSINA-5-PRL-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-2-esc1-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 1 67P Raw Data v2.0 RO-C-ROSINA-2-ESC1-V2.0 - I found no issues with this dataset https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-3-esc1-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 1 67P Calibrated Data v2.0 RO-C-ROSINA-3-ESC1-V2.0 - I found no issues with this dataset https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-4-esc1-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 1 67P Resampled Data v2.0 RO-C-ROSINA-4-ESC1-V2.0 - No errata.txt file - Within the aareadme.txt file for this dataset it states that this contains the "calibrated data" however the calibration files indicate that the calibrated data for COPS is not until the L3 files. It appears that the data is calibrated and uses the DFMS L3 data to produce the calibration. Some clarifcation of the verbiage may help here and maybe a short description of how the calibration is applied would be helpful. https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-5-esc1-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 1 67P Derived Data v2.0 RO-C-ROSINA-5-ESC1-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-2-esc2-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 2 67P Raw Data v2.0 RO-C-ROSINA-2-ESC2-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-3-esc2-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 2 67P Calibrated Data v2.0 RO-C-ROSINA-3-ESC2-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-4-esc2-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 2 67P Resampled Data v2.0 RO-C-ROSINA-4-ESC2-V2.0 - No errata.txt file - Within the aareadme.txt file for this dataset it states that this contains the "calibrated data" however the calibration files indicate that the calibrated data for COPS is not until the L3 files. It appears that the data is calibrated and uses the DFMS L3 data to produce the calibration. Some clarifcation of the verbiage may help here and maybe a short description of how the calibration is applied would be helpful. https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-5-esc2-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 2 67P Derived Data v2.0 RO-C-ROSINA-5-ESC2-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-2-esc3-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 3 67P Raw Data v2.0 RO-C-ROSINA-2-ESC3-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-3-esc3-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 3 67P Calibrated Data v2.0 RO-C-ROSINA-3-ESC3-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-4-esc3-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 3 67P Resampled Data v2.0 RO-C-ROSINA-4-ESC3-V2.0 - No errata.txt file - Same as other L4 data files issue with the calibration text https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-5-esc3-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 3 67P Derived Data v2.0 RO-C-ROSINA-5-ESC3-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-2-esc4-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 4 67P Raw Data v2.0 RO-C-ROSINA-2-ESC4-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-3-esc4-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 4 67P Calibrated Data v2.0 RO-C-ROSINA-3-ESC4-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-4-esc4-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 4 67P Resampled Data v2.0 RO-C-ROSINA-4-ESC4-V2.0 - No errata.txt file - Same as other L4 data files issue with the calibration text https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-5-esc4-v2.0/dataset.html Rosetta-Orbiter ROSINA Escort 4 67P Derived Data v2.0 RO-C-ROSINA-5-ESC4-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-2-ext1-v2.0/dataset.html Rosetta-Orbiter ROSINA Extension 1 67P Raw Data v2.0 RO-C-ROSINA-2-EXT1-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-3-ext1-v2.0/dataset.html Rosetta-Orbiter ROSINA Extension 1 67P Calibrated Data v2.0 RO-C-ROSINA-3-EXT1-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-4-ext1-v2.0/dataset.html Rosetta-Orbiter ROSINA Extension 1 67P Resampled Data v2.0 RO-C-ROSINA-4-EXT1-V2.0 - No errata.txt file - Same as other L4 data files issue with the calibration text https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-5-ext1-v2.0/dataset.html Rosetta-Orbiter ROSINA Extension 1 67P Derived Data v2.0 RO-C-ROSINA-5-EXT1-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-2-ext2-v2.0/dataset.html Rosetta-Orbiter ROSINA Extension 2 67P Raw Data v2.0 RO-C-ROSINA-2-EXT2-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-3-ext2-v2.0/dataset.html Rosetta-Orbiter ROSINA Extension 2 67P Calibrated Data v2.0 RO-C-ROSINA-3-EXT2-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-4-ext2-v2.0/dataset.html Rosetta-Orbiter ROSINA Extension 2 67P Resampled Data v2.0 RO-C-ROSINA-4-EXT2-V2.0 - No errata.txt file - Same as other L4 data files issue with the calibration text https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-5-ext2-v2.0/dataset.html Rosetta-Orbiter ROSINA Extension 2 67P Derived Data v2.0 RO-C-ROSINA-5-EXT2-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-2-ext3-v2.0/dataset.html Rosetta-Orbiter ROSINA Extension 3 67P Raw Data v2.0 RO-C-ROSINA-2-EXT3-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-3-ext3-v2.0/dataset.html Rosetta-Orbiter ROSINA Extension 3 67P Calibrated Data v2.0 RO-C-ROSINA-3-EXT3-V2.0 - No errata.txt file https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-4-ext3-v2.0/dataset.html Rosetta-Orbiter ROSINA Extension 3 67P Resampled Data v2.0 RO-C-ROSINA-4-EXT3-V2.0 - No errata.txt file - Same as other L4 data files issue with the calibration text https://pdssbn.astro.umd.edu/holdings/ro-c-rosina-5-ext3-v2.0/dataset.html Rosetta-Orbiter ROSINA Extension 3 67P Derived Data v2.0 RO-C-ROSINA-5-EXT3-V2.0 - No errata.txt file