North Korea says it aims to estimate crop production and analyze natural resources when it launches a satellite on a long-range rocket next month.
The United States and South Korea view the launch as a cover for testing long-range missile technology.
An unnamed North Korean space technology official said Wednesday that foreign experts and journalists have been invited to show that the satellite has peaceful and scientific purposes.
He also told the official Korean Central News Agency that the satellite weighs 100 kilograms (220 pounds) and will orbit at an altitude of 500 kilometers (310 miles).
Pyongyang claims it put a satellite in orbit in 2009. Washington and Seoul say it did not.