IKONOS was the first satellite to collect publicly available high-resolution commercial imagery at 1-4 meter resolution. It was successfully launched in 1999 after an initial failed launch, carrying multispectral and panchromatic sensors. IKONOS provides high-quality imagery for applications such as mapping, change detection, and analysis, with sub-meter panchromatic and 4 meter multispectral resolution across a 11km swath. It established the standard for commercial high-resolution satellite imagery.