First Batch of Hong Kong Images Captured by "MUSICO"

The Tiangong Space Station operates in low Earth orbit at an altitude of approximately 400 km above the Earth's surface, with an orbital inclination of about 41.5 degrees. As the space station completes one orbit around the Earth every 90 minutes, combined with the effects of the Earth's rotation, its ground track shifts westward with each pass. As a result, the space station does not fly over the same location along the same trajectory every day.

The picture shows the ground track of MUSICO during its pass over the Pearl River Estuary and most parts of Hong Kong on 25 September 2026.

Remote sensing image of Hong Kong captured by MUSICO's carbon dioxide sensor. Variations in image brightness are influenced by factors including surface reflectance, atmospheric conditions, and cloud cover. The brighter region in the upper-left corner is primarily caused by cloud reflection. Because cloud tops have a high reflectance to sunlight, they appear as higher radiance values in the image.

Image of Hong Kong captured by MUSICO's methane sensor. The color variations represent different radiance intensities received by the instrument and provide fundamental data for analyzing greenhouse gas distributions.

Image of Hong Kong captured by MUSICO's oxygen sensor. The concentric rings visible in the image correspond to different wavelengths. Darker bands indicate wavelengths where oxygen absorption is stronger.

Image of Hong Kong captured by MUSICO's aerosol sensor. The image displays spectral intensity at wavelengths of 440 nm, 685 nm, and 865 nm, which can be used to infer the concentration of aerosol particles in the atmosphere.