Summary of core products of the International GNSS Service (IGS) Ultra-Rapid (real-time), Rapid, & Final series outputs: orbits, polar motion/LOD, clocks, & station positions Ultra-Rapid products very widely used for many demanding real-time applications
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IGS Analysis Center Coordinator
NOAA/National Geodetic Survey
NGA Future EOP Prediction Workshop, Springfield, VA, 17 November 2011
+ Projected orbit:
Observed + Predicted EOPs(t)
0.5 mas = 64 mm
error @ GPS hgt
Multi-technique EOP combinations mostly sub-optimal !