Chronology of IGS Reference Frame Usage

From time to time, the IGS has changed the terrestrial reference frame that is used to express its products, usually related to updates of the International Terrestrial Reference Frame (ITRF). The chronology of the IGS changes is tabulated below.

ITRF92 ITRF93 ITRF94 ITRF96 ITRF97 ITRF97 with consistent orbit rotational alignment IGS97 IGS00 IGb00 IGS05 IGS08 IGb08  

04 October 2012, originator IGS ACC