I noticed DP1 exposures have a field called target_name corresponding to the 7 fields observed. However there are exposures that have target_name = ‘slew_icrs’, all of them within the ECDFS region. Can slew_icrs exposures be used together with ECDFS ones in our analyses? Should we users avoid using slew_icrs exposures?
Yes. This is fine. There were some issues with the control system for the observation (remember this was pretty much the first time we had tried observing with the new telescope) that led to the previous target name printing through to the science observation.