Sejong-1 (SJSAT-1) Earth Observation Satellite
Hancom InSpace
South Korea's first commercial Earth-observation smallsat — 6U CubeSat with red-edge band for vegetation analysis, 5m GSD multispectral imagery, first of a 5-satellite constellation.
Technical specifications
- Form factor
- 6U CubeSat (200x100x300 mm)
- Weight
- 10.8 kg
- Orbit altitude
- 500 km
- Swath
- 20 km
- Resolution (GSD)
- 5 m
- Spectral bands
- VNIR, 7 bands
- Launch date
- May 26, 2022
- Constellation plan
- 5 satellites (Sejong-1 through Sejong-5)
About
Sejong-1 is South Korea’s first commercial Earth-observation smallsat, operated by Hancom InSpace, launched May 2022. The 6U CubeSat carries a red-edge band optimized for vegetation-index analysis of crops and forests, operating in a 500 km orbit and delivering 5 m GSD multispectral imagery across 7 VNIR bands. It is the first of a planned five-satellite Sejong constellation (Sejong-1 through Sejong-5), with Sejong-2 specializing in marine/agricultural monitoring and urban applications.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
