The major goal of the KOMPSAT-3A program is to develop an earth observation satellite to obtain IR (Infrared) and high resolution EO (Electro-Optical) images for GIS (Geographical Information Systems) applications in environmental, agricultural and oceanographic sciences as well as natural disasters.
In addition, The KOMPSAT-3A program is devoted to industrialization of the bus system development by the domestic companies. It was launched on 25th of May,2015. The mission orbit is a sun-synchronous orbit at an altitude of 530 km during 4 years.
Mission objectives:
• Data continuation after KOMPSAT-3
• Provision of the high-resolution EO (Electro-Optical) images
• Provision of IR (Infrared) images
Payload: AEISS-A
• Identical with KOMPSAT-3 for visible
• Additional IR band
Orbit
• 528 km altitude
• Better GSD than KOMPSAT-3
For more information:https://www.kari.re.kr/eng/sub03_02_01.do
Specifications
| Ground Sampling Distance | PAN: 0.55mat 528km altitude (nadir) MS: 2.2m at 528km altitude (nadir) IR: 5.5 m at 528km altitude (nadir) |
| Swath Width | > 13km (nadir) |
| Spectral Bands | PAN: 450-900 µm MS1 (Blue): 450-520 µm MS2 (Green): 520-600 µm MS3 (Red): 630-690 µm MS4 (NIR): 760-900 µm MWIR: 3.3 µm - 5.2 µm |
| Modulation Transfer Function | System MTF at Nyquist fr. For PAN: 8% System MTF at Nyquist fr. For MS:8% System MTF at Nyquist fr. For MS: 8% |
| NETD | 0.05K at 300K |
Imaging Capability
• Day time and night time imaging
• 270,000km² / day
• Channel selection: PAN / IR / PAN+MS / PAN+MS+IR
