The Japanese space agency, JAXA, and the launch of the remote southern island of Tanegashima went off without a hitch and satellites equipped with radar is working properly. The launch of the second year, after a successful take-off in September.
The officials declined to give details about the capabilities of the satellite.
Reports of the Japanese media says it will increase the visual satellite Japan has already begun through the provision of data about what is happening on the ground at night, or through the clouds.
Japan launched the first pair of spy satellites in 2003, driven by concerns over North Korea's missile program. It currently has four optical information-gathering satellites in orbit, although the last of these is not fully functional yet.
It launched earlier in the intelligence radar satellites, but crashes on both.
An official of the Council of Ministers Information Center satellite is expected to launch satellite Monday to begin gathering intelligence within a few months, The Associated Press. On condition of anonymity because details of the classified program.
Another official launch is planned satellite radar next year.
That would give Japan a combination of two satellite optical and radar, which it wants to complete its network. Tokyo aims to use satellites to provide information on any particular spot on the planet at least once a day.