A satellite’s revision rate refers to how often it passes the same location on the Earth’s surface. This is a measure of how often the satellite revisits and collects data from specific points or areas of interest. The revision rate is crucial for applications requiring frequent monitoring, such as environmental monitoring, disaster response, agriculture and surveillance.
Satellites with higher revisit rates can provide more timely and updated information, improving the efficiency of operational tasks and decision-making processes.
Calculating a satellite’s revision rate involves several factors, primarily the satellite’s orbital parameters and imaging capabilities. To determine the revision rate, one generally needs to know the orbital period of the satellite (the time required to complete one orbit around the Earth), the width of the image strip Spacing (the distance between successive ground tracks).
The revisit rate can be calculated as the inverse of the time it takes for the satellite to cover an area equal to its bandwidth along a specific ground track. This calculation helps estimate how often the satellite can revisit a particular location on Earth.
A satellite’s overhaul time refers to the time interval between consecutive visits of the satellite to the same point on the Earth’s surface. This is a specific instance of revisit rate, indicating the duration between successive observations of a particular location.
Review time is essential for applications requiring periodic monitoring and assessment of changes in environmental conditions, infrastructure, or natural disasters.
The overhaul rate of icy satellites varies depending on their operational parameters and mission objectives. Iceye satellites are known for their ability to provide frequent, high-resolution synthetic aperture radar images. The revision rate of icy satellites is optimized to support applications such as maritime surveillance, disaster monitoring and infrastructure monitoring, where timely and accurate information is essential.
Iceye aims to provide rapid review times to enable near-time monitoring of dynamic situations and events on the Earth’s surface.
A satellite’s repeat cycle and overhaul time refer to its operational pattern and the frequency of revisiting specific locations on Earth. The repeat cycle defines the sequence or pattern in which a satellite returns to different areas over time, often influenced by its orbit characteristics and mission requirements. The review time specifies how often the satellite returns to observe the same point or region on Earth.
Together, these parameters help define the operational efficiency of the satellite and its ability to meet the needs of various applications, ensuring systematic coverage and timely data acquisition for users around the world
