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The use of quality assurance (QA) flags as part of the logic for the merged dark target – deep blue product implies that both DT and DB agree on the quantitative meaning of their QA assignments (e.g., a value of 2 vs. 3). Can you comment?

Dark Target and Deep Blue quality assurance tests and definitions are independent and unrelated, and it is coincidental that they use the same (0-3) scale. Follow individual group recommendations for their products, or better yet, use only the prefiltered scientific data sets (SDSs).