Between Monday 2nd and Friday 5th of July 2019 the KMA NMSC conducted testing of their new geostationary weather satellite GEO-KOMPSAT-2A (GK-2A). This post is a summary of the testing carried out during this period, as well as some observations regarding new data types and formats.
Around 9:50 AM KST the COMS-1 L-Band transponder was switched off to make way for the GK-2A LRIT and HRIT carriers. Initially only a strong CDAS carrier containing raw sensor data from GK-2A was visible.
GK-2A L-Band testing has begun! COMS-1 LRIT/HRIT carriers and their transponder are now off.— Sam (@sam210723) July 1, 2019
GK-2A CDAS carrier is booming in. pic.twitter.com/q1DWbhZ8Fv
COMS-1 L-Band service is back after GK-2A testing completed just a few minutes ago.— Sam (@sam210723) July 5, 2019
COMS-1 transponder could be seen starting up, followed by LRIT and HRIT carriers. pic.twitter.com/CTzPvZqybZ
||Visible||Full Disk (all channels)|
||Short-wave Infrared||not used|
||Water Vapour||not used|
||Infrared 1||not used|
||Infrared 2||Additional Data|
||Alpha-numeric Text||Alpha-numeric Text|
||Fill / Idle||Fill / Idle|
First Full Disk image from GK-2A LRIT using COMS-1 keys for decryption!— Sam (@sam210723) July 2, 2019
Images are being downlinked every 10 minutes, a huge improvement over the 3 hour interval of COMS-1. pic.twitter.com/plkWmKZd8s