Current status of IGS station quality feedback A. Moore Various metrics, reports, and summaries of the IGS network have been devised over the years. Based on feedback received at the Central Bureau, IGS users, analysts, and station personnel make use of these in different ways based on the information content, method of distribution, and personal preference. Users evidently have different needs in terms of the level of information required, depending on their goals. It is appropriate to review what is currently available in the context of assuring that the community has ready access to information that enables both assessment and improvement of network performance.