DubaiSat1 was launched in 2009 and DubaiSat2 in 2013.
Both satellites on board, which are created to study Earth, separated successfully, with the first leaving about 16 minutes into flight and the second about 24 minutes in.
An H-2A rocket carrying an Ibuki-2 greenhouse gas observation satellite was launched Monday from the Tanegashima Space Center in southwestern Japan, successfully putting the satellite into its planned orbit.
KhalifaSat is set to spend five years in "Low Earth Orbit" before descending to Dubai's Mohammed Bin Rashid Space Center.
The images provided by the satellite will be used in urban planning and management, ensuring the effective optimization of land use and realistic infrastructure proposals.
The director of the space systems development department and the project manager of KhalifaSat at the MBRSC, Amer Al Sayegh, said, "This is a very proud moment for us at the MBRSC and as UAE nationals".
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The satellite will also monitor environmental changes locally and internationally to support global efforts to preserve the environment.
Khalifa Sat was carried by Japanese H-IIA rocket, and will send back images of high quality and clarity, allowing the UAE to provide services in the competitive world of satellite imagery.
The launch is part of the Gulf nation's ambition under its fledging space programme.
The country aims to send its first two astronauts to the International Space Station in 2019.