Execute data reprocessing campaigns on test data. Processing campaigns are specified by a goal/purpose, pipeline(s) to be run, configurations, and input and output dataset(s). Pre-camera data campaigns support pipeline development and evolution of the batch production service. Work includes setup, testing, execution, debugging, verification of results, handling of data products, and liaison with the Pipelines teams. 1) "Weeklies," which are run ~biweekly on a pre-defined subset of HSC data (RC2) using the latest tagged version of the LSST Stack.