SDGSAT-1 Satellite Data
SDG Satellite SDG-1, known as SDGSAT-1, is the first satellite developed specifically for the implementation of UN 2030 Agenda for Sustainable Development (SDG), and the first Earth science satellite among the satellites developed by the Chinese Academy of Sciences (CAS), which is launched successfully into orbit On november 5, 2021.
SDGSAT-1 Satellite
SDG Satellite SDG-1, known as SDGSAT-1, is the first satellite developed specifically for the implementation of UN 2030 Agenda for Sustainable Development (SDG), and the first Earth science satellite among the satellites developed by the Chinese Academy of Sciences (CAS), which is launched successfully into orbit On november 5, 2021.
Tailored to the needs of monitoring and evaluating indicators related to global SDGs, SDGSAT-1 is equipped with three kinds of payloads including thermal infrared, low-light-level and multi-spectral imagers, orbiting the Earth at an altitude of 505 km and an inclination angle of 97.5.
The three payloads, combined with their 300 km-wide swaths, can provide all-time, all-weather, multi-load cooperative observations, achieving global coverage in 11 days.
SDGSAT-1 aims to achieve the fine depiction of "traces of human activities" and therefore to provide exclusive data support for the SDG indicators which reflect the interaction between human activities and nature.
China will develop and operate follow-on satellites to and provide more indicator-tailored data sources to facilitate global SDG implementation.
| Specification | Indicator | |
|---|---|---|
| TIS | Range width/Pixel resolution@505km | 300km/30m |
| Detection spectra/NETD | 8~10.5μm/0.2K@300K; 10.3~11.3μm/0.2K@300; 11.5~12.5μm/0.2K@300 | |
| Dynamic range | 220K~340K | |
| Static/Dynamic MTF | ≥0.1@30m (sub-satellite point) | |
| Radiometric calibration | Absolute calibration: better than 1K@300K; Relative calibration: better than 5% | |
| Digitalizing bit | ≥12bit | |
| Code rate (Uncompressed) | Peak power dissipation≤230Mbps; Average≤70Mbps | |
| Calibration | Black body calibration in full field of view | |
| LLL | Spectrum range | Panchromatic: 450nm~900nm; B: 430nm~520nm; G: 520 nm~615nm; R: 615nm~900nm |
| Pixel resolution@505km | Panchromatic: 10m; RGB: 40m | |
| SNR-city’s main road lamplight | Panchromatic&RGB (1.0-2 W/m2/sr) ≥ 50 | |
| SNR-City and town residential area | Panchromatic&RGB (1.6-3 W/m2/sr) ≥ 10 | |
| SNR-Polar moonlight | Panchromatic ≥ 10 | |
| Code rate (Uncompressed) | ≤400Mbps | |
| MII | Spectrum settings | B1(deep blue 1): 380nm~420nm; B2(deep blue 2): 420nm~460nm; B3(blue): 460nm~520nm; B4(green): 520nm~600nm; B5(red): 630nm~690nm; B6(red edge): 765nm~805nm; B7(near-infrared): 805nm~900nm |
| Pixel resolution | 10m@505km | |
| SNR | B1 ≥ 130; B2~B6 ≥ 150 | |
| Code rate | not more than 2.4 Gbps (uncompressed, total) |