Isochronous - band - was created in 2006.

Isochronous literally means "to occur at the same time or at equal time interval.

An isochronous satellite is one that orbits the earth in one day. So it orbits the earth as the same speed as the earth rotates.

Most satellites that are isochronous are infact geostationary satellites as they also stay in the same position above the earth. However these satellites occupy a very specific orbit above the equator.

It is possible to have isochronous satellites that aren't geostationary however getting them to remain in orbit would prove difficult.

An Isochronous governor

isochronous