We are attempting to process some DECam data from raw files. We have ingested and certified the files, and are able to run ISR following these pipelines (namely an ISR-crosstalk-prep, then ISR). However, when we try to run the chacterizeImage task with
description: The AP template building pipeline specialized for DECam instrument: lsst.obs.decam.DarkEnergyCamera imports: - location: $AP_PIPE_DIR/pipelines/ProcessCcd.yaml exclude: - isr - location: $AP_PIPE_DIR/pipelines/DarkEnergyCamera/RunIsrWithCrosstalk.yaml tasks: characterizeImage: class: lsst.pipe.tasks.characterizeImage.CharacterizeImageTask config: refObjLoader.ref_dataset_name: 'ps1_pv3_3pi_20170110'
we get an error showing
characterizeImage.measurement INFO: Measuring 688 sources (688 parents, 0 children) characterizeImage.measurePsf INFO: Measuring PSF characterizeImage.measurePsf INFO: PSF star selector found 0 candidates characterizeImage.measurePsf.reserve INFO: Reserved 0/0 sources characterizeImage.measurePsf INFO: Sending 0 candidates to PSF determiner RuntimeError: No PSF candidates supplied.
Does anyone know why this is occurring or what we might do to investigate this further?