Chinese Satellite Hyperspectral Data:Supporting for Hymi-X Technology
Compared to other currently operational satellite hyperspectral data worldwide,China's hyperspectral data offers the following advantages:

Largernumberof hyperspectral Satellites
As of now, China has successfully launched and operates four hyperspectral remote sensing satellites inorbit, significantly surpassing other countries in terms of quantity. This provides robust support for high.frequency and wide-coverage ground observation, greatly enhancing the comprehensive observationcapabilities and global applications of hyperspectral remote sensing.

Wider imaging width and spectral range
Wider image width
China's hyperspectral satellites achieve an imaging swath width of 60 km, significantly exceeding the 30km swath width of other hyperspectral satellites, such as Germany's EnMAP. This provides a substantialadvantage for regional and large-scale observations, greatly improving observation efficiency.

Swath Width Comparison of Hyperspectral Satellites in Orbit
ZY1E	ZY1F	GF5B	GF5A	EnMAP	EnMAP

Wider spectral range

China's hyperspectral satellites cover a spectral range of 0.4-2.5 um, encompassing the visible, near.infrared, and shortwave infrared bands. This broad spectral coverage enhances the satellitescomprehensive capabilities in element and mineral identification, as well as land cover classification.

Outstanding technical index of data

Much numberofspectral bands
Providing 330 spectral bands, significantly exceeding standard multispectral satellites (typically 6-12bands)and many international counterparts, such as Germany's EnMAP with 242 bands, Chinashyperspectral satellites can capture subtle spectral features of ground objects. This makes them highlysuitable for detailed classification and compositional analysis.

Much better sensitivity
The high sensitivity with an SNR of 600 enables the satellite to detect subtle spectral signal variations.making it well-suited for detecting low-reflectance targets such as rare minerals.

Much higher radiometric resolution
The radiometric resolution with an SNR of 600 enables the satellite to maintain high detection accuracyeven for low-reflectance targets or under complex background conditions, ensuring the reliability of dataquality.

Much higher spectralresolution
With a spectral resolution of 0.45 nm, the satellite can distinguish extremely similar spectral features.making it ideal for fine-grained identification of ground objects.

Much higher spatial resolution
With a spatial resolution of 30 meters per pixel, China’s hyperspectral satellites are at the forefront ofthe field. in mineralization information acauisition, the results are highly consistent with those from the4-meter spatial resolution hyperspectral data of Nevada Airborne Systems (USA). This demonstrates thatChina's hyperspectral satellite data fully meets practical demands in the mining sector, effectivelyrevealing mineralization information and providing critical support for resource exploration.

China hyperspectral aerospace data spatial resolution of 30 meters
US Nevada hyperspectral aviation data spatial resolution of 4 meters