The image size for SL is restricted to 10km x 10km at a spectral resolution of 2m, whilst HS mode has an image size of 5-10km x 5km at 1m spectral resolution. Spotlight (SL) and Spotlight High Resolution (HS) are based on a phased array beam that steers toward an azimuth direction for an overall increase in illumination.
TSX-SAR has numerous imaging modes that allow for superior quality when compared to predecessor technology.
TSX also has a communication function which is built into the Laser Communication Terminal (LCT) that provides bidirectional communications for binary digital data transfer between satellites in different orbits (lower Earth orbit to mid-Earth orbit) or between a satellite and its constituent ground segment. The IGOR GPS receiver also has tracking capabilities that allow for precise orbit determination (POD) and works in conjunction with the Laser Retro Reflector (LRR) to evaluate GPS-based orbital data independently.Īdditionally, the TOR payload involves support modes that are able to provide processing of additional GPS occultation missions, including TOR-SAR, which focuses on precise science orbit (PSO) and SAR instrumentation, TOR-RO, which is responsible for ultra-rapid science orbit (USO), atmospheric excess phases, occultation tables, and ionospheric profiles, and TOR-POD, which focuses on PSO and USO. TSX also includes a Tracking, Occultation and Ranging payload (TOR), which functions as a dual-frequency GPS receiver IGOR (Integrated GPS Occultation Receiver) that collects atmospheric radio occultation (RO) data to be used in the improvement of weather forecasting, climate change studies and space weather monitoring.
Each distinct mode of TSX SAR functions as a radar system that builds reconstructions of desired landscapes for Earth observation purposes. The TSX SAR instrument is an active phase array X-band antenna system that provides multispectral SAR imagery in numerous operational modes such as ScanSar, Spotlight and Stripmap.
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