Import Kompsat 2 Products

Overview

The KOMPSAT-2 system allows the acquisition of PAN images at spatial resolution of 1 meter and MS images of 4 meters from space. The mission objectives of the KOMPSAT-2 System are to provide the following capabilities in the field of earth observation. The KOMPSAT-2 system provides 1) surveillance of large scale disasters and their countermeasures, 2) acquisition of independent high resolution images for GIS, and 3) composition of printed maps and digitized image maps on domestic and overseas territories to users.

Imaging Performance

The KOMPSAT-2 allows the generation of high resolution images with a GSD of better than 1 m for PAN data and 4 m for MS data with nadir viewing condition at the nominal altitude of 685 km. The MSC has a single PAN spectral band between 500 - 900 nm and 4 MS spectral bands between 450-900 nm. PAN imaging and MS imaging can be operated simultaneously during mission operations. The swath width is greater than or equal to 15 km at the mission altitude for PAN data and MS data

• Kompsat2 Reference Documentation

This command allows to import Kompsat2 products. There are two levels of products that can be imported:

• Level 1R : Level 1R data is the image data cut by catalogue (15000 column X15500 line), optionally MTF corrected and stored by Tiff format
• Level 1G :Level 1G data is geometrically corrected from Level 1R image data using KOMPSAT-2 ancillary data only and stored by GeoTiff format

MSC image data format

The products can be either compressed in a zip archive, or uncompressed in a specific folder structure.

Whether the product is an archive or a folder, the list of files must have the same structure:

The product must contain 1 file and a image directory containing a TIFF images and metadata files:

• the xml file provides the image metadata
• the zip folder contains 5 TIFF images that each represents a band. For each TIFF image there is a .txt file containing information about
  • File _M1XXXG_1G/_M1XXXG_1R for band MS1 (green)
  • File _M2XXXB_1G/_M2XXXB_1R for band MS2 (blue)
  • File _M3XXXN_1G/_M3XXXN_1R for band MS3 (NIR)
  • File _M4XXXR_1G/_M4XXXR_1R for band MS4 (red)
  • File _PXXXN_1G/_PXXXN_1R for band PAN (panchromatic)

File Naming Convention

• TIFF Level 1R
• MSC_YYMMDDHhmmss_nnnnn_PPPPrrrrPAxx_tt.tif - PAN
• MSC_YYMMDDHhmmss_nnnnn_PPPPrrrrMXAxxB_tt.tif - MS
• YYMMDDHhmmss – Scene center time in UTC
• nnnnn – Orbit number
• PPPP – Path number
• rrrr – Row number
• P – P(Pan only)
• MX - M(MS only) X(1,2,3,4)
• A – P(positive), N(negative) tilt angle
• xx – Tilting angle(first two digit)
• B – G(Green), B(Blue), N(NIR), R(Red)
• tt – 1R
• TIFF Level 1G
• MSC_YYMMDDHhmmss_nnnnn_PPPPrrrrPAxx_tt.tif - PAN
• MSC_YYMMDDHhmmss_nnnnn_PPPPrrrrMXAxxB_tt.tif - MS
• YYMMDDHhmmss – Scene center time in UTC
• nnnnn – Orbit number
• PPPP – Path number
• rrrr – Row number
• P – P(Pan only)
• MX - M(MS only) X(1,2,3,4)
• A – P(positive), N(negative) tilt angle
• xx – Tilting angle(first two digit)
• B – G(Green), B(Blue), N(NIR), R(Red)
• tt – 1G

Geodetic Coordinate System

The geodetic coordinate system is based on the WGS84 reference frame with coordinates expressed latitude, longitude, and height above the reference Earth ellipsoid