Robuta

https://isprs-archives.copernicus.org/articles/XLII-3/679/2018/ ISPRS-Archives - CONSTRUCTION THEORY AND NOISE ANALYSIS METHOD OF GLOBAL CGCS2000 COORDINATE FRAME https://isprs-archives.copernicus.org/articles/XLII-3-W10/535/2020/isprs-archives-XLII-3-W10-535-2020-relations.html ISPRS-ARCHIVES - Relations - A NONLINEAR CONVERSION MODEL FORM ITRFYY TO CGCS2000 isprs archives conversion model relations nonlinear