 The IGS Tracking Network: IGS05 Reference Frame sitesClick on a site label for information on that site.
This map shows the current IGS Reference
Frame (RF) stations used since GPS week 1400 (5 Nov 2006, MJD 54044).
This set of stations has been selected by the IGS Reference Frame Working
Group (RFWG) for the IGS realization of the International Terrestrial
Reference Frame (ITRF).
The main selection criteria were station
performance, track record, monumentation, collocation and geographical
distribution.
At every update of the RF realization, the number of
stations selected has increased, in order to improve
the overall quality of the RF realization, and thus all the IGS
products that depend on it.
The consistency and stability of the IGS products, as well as the ability to link measurements across space and time, depends critically upon those RF stations. As such, there are physical and operational guidelines noted as being particularly important for RF stations. Well-behaved coordinate/residual time series are an important indicator of individual station contribution to the frame realization stability. The special responsibility and effort of the agencies operating these stations is acknowledged by the IGS and its users.
See IGSMails 4642 and 4748 for more information. A machine-readable list of the stations' 4-character ID's is available.
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This page last updated: 29 Aug 2008 |