VV28 mission in a nutshell

The VV28 mission is the third launch for Vega-C in 2025.

KOMPSAT-7 is the successor to KOMPSAT-3A (placed into orbit in 2015) and was developed to be one of the world’s most advanced ultra-high-resolution optical satellites. It is designed to support detailed observation of the Korean Peninsula and to meet the growing national demand for high quality satellite imagery.

The KOMPSAT-7 optical payload includes a highly precise optical system and adopts optical
data transmission technology - a first for a Korean satellite - to enable real-time processing of
large-volume Earth observation imagery via electro-optical modules and onboard
storage/processing systems. The system is equipped with more than one terabit of onboard
storage and utilizes high-speed parallel processing to enable real-time compression and
encryption, ensuring that large volumes of imagery can be transmitted to ground stations
within limited time windows.

To maximize the effectiveness of its ultra-high-resolution optical payload, KOMPSAT-7
incorporates a control moment gyroscope (CMG) for enhanced agility and features an onboard
computer that is over three times faster than those used in KOMPSAT-3A, significantly
improving attitude control performance. The ground image processing system applies
advanced parallel processing techniques, enabling it to complete first-stage geometric
correction and generate imagery within 15 minutes after receiving satellite data.

The nominal duration of the mission (from lift-off to separation of the satellite) is: 45 minutes.

Seperation of KOMPSAT-7 : 44 minutes.