What is "jsat"

The JSAT constellation is a communication and broadcasting satellite constellation formerly operated by JSAT Corporation and currently by SKY Perfect JSAT Group. It has become the most important commercial constellation in Japan, and the fifth of the world. It has practically amalgamated all private satellite operators in Japan, with only B-SAT left as a local competitor.

It began in 1985 with the opening of the communication markets in Japan and the founding of Japan Communications Satellite Company, Satellite Japan Corporation, Space Communications Corporation. It grew by own investment, mergers and acquisitions of the parent companies. As of August 2016, in includes the fleets of three previously mentioned companies, Horizons Satellite LLC and NTT DoCoMo and the DSN military network.

JSAT may refer to:

• SKY Perfect JSAT Group, a communication satellite operator and digital TV broadcaster of Japan.
• JSAT Corporation, a communications satellite operator company that was absorbed by SKY Perfect JSAT Group in 2008.
• JSAT (satellite constellation), a satellite fleet formerly operated by JSAT Corporation and currently by SKY Perfect JSAT Group.