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What is
Features of SAR Data

There are currently two types of Earth observation satellites in use: optical satellites and synthetic aperture radar (SAR) satellites.

SAR satellites, unlike optical ones, utilize radar technology, enabling them to acquire detailed information about the Earth's surface regardless of day, night, or weather conditions.

SAR, with its unique capabilities, holds great potential for various applications. For instance, in the event of disasters such as floods, earthquakes, or volcanic eruptions, optical satellites may be hindered from observations by cloud cover, whereas SAR can overcome such obstacles and provide an accurate assessment of the damage.

Moreover, by employing interferometric analysis, SAR can detect subtle surface movements. This capability allows for monitoring extensive infrastructures such as slopes, roads and facilities, providing crucial information for disaster prevention and mitigation strategies.





Optical ○ × × ×
SARSynthetic Aperture Radar ○ ○ ○ ○

Satellite Specifications

Frequency 9.6GHz (X band)
Look Direction Left or Right in Direction of Movement
Imaging Mode Stripmap Mode, Spotlight Mode
Antenna Size 3.6m (diameter)
Operational Orbit SSO (Sun-Synchronous Orbit) and Inclined Orbit
Bandwidth ~600MHz
Peak Radiated Power 2,000W
Polarization HH or VV
Off-nadir Angle 15-50 degrees
Propulsion System Available

Schematics of Imaging Modes

  • Stripmap mode

  • Spotlight mode

Product Specifications

Imaging Mode Resolution※1(Azimuth x Ground Range) Scene Size※1(Azimuth x Ground Range) NESZ
※1 ※2
Interference Package
Stripmap 1.8m x 0.46m 14km x 7km -20dB (To be available)
Spotlight 0.46m x 0.46m 7km x 7km
  • *1 Analyzed values at an off-nadir angle of 30 degrees and a bandwidth of 600 MHz
  • *2 The lower the value of NESZ (Noise Equivalent Sigma Zero), the higher the sensitivity of the SAR to the received signal.

Product Level

Processing LEVEL Data Imagine Mode Data Type Format
1.1 (SLC) Single Look Complex Stripmap Mode Float32 (I),
Float32 (Q)
1.1 (SLA) Single Look Amplitude Stripmap Mode Float32 GEOTIFF
1.1 (MLA) Multi Look Amplitude Spotlight Mode Float32 GEOTIFF
1.2 (SLA, MLA) Ground range projected(L1.1 with Slant/Ground conversion
and map projection)
Stripmap Mode/
Spotlight Mode
1.3 (SLA, MLA) Ortho with DEM(L1.1 with DEM elevation rectification
and map projection)
Stripmap Mode/
Spotlight Mode


We provide a console that enables new observation orders to QPS-SAR, as well as searching and purchasing archive data. This allows for a more streamlined and efficient process of conducting imaging plans and placing orders, which were previously time-consuming and labor-intensive.
Furthermore, we offer API functionality that enables integration with your system.

Tasking System

Archived Data Platform

Main Functions

  • Tasking System

    Observation schedule search Observation option selection Tasking execution (new observation order) New observation data download API linkage, etc.

  • Archived Data Sales

    Archive data search Option selection Archive data download API linkage, etc.