Resolution 0.92-1.21m, Night vision and Videos, Revisit 3 times a day
The Jilin-1 SP03-08 satellite constellation was launched between January 2017 and January 2018. This constellation of 6 satellites provides daytime video acquisition and multispectral nighttime imaging at 92 cm resolution. These satellites have an onboard radiance calibration tool.
A second generation of video and night vision satellites was launched in 2020. This new constellation includes 3 satellites (Jilin1GF03C01/02/03) with a capacity to acquire images and videos at 1.21m resolution.
The multispectral bands make it possible to distinguish the types of lighting by their differences in spectral emissions. These satellites have been specially designed for the characterization of light pollution and nuisances.
Technical Specifications
| Orbit / Altitude | 535 and 528 km, Sun Synchronous Orbit, Equatorial Node 10:30 UTC |
| Launch date | 2017 and 2020 |
| Number of satellites | 9 |
| Revisit rate | 3 times a day |
| Spatial Resolution | 0.92 m et 1.21 m color video |
| Swath Width | 11 km x 4.6km (JL-1SP03), 19 km x 4.6km (JL-1SP04-08), 14.4 km x 6 km (JL-1GF03C01/02/03) |
| Acquisition mode | Images and Videos |
| Scale | 1/5 000 |
| Geolocation Accuracy | 8m |