Skip to main content

Table 2 Comparison of estimated ERPs to the IERS-14-C04 series

From: Estimating global geodetic parameters using SLR observations to Galileo, GLONASS, BeiDou, GPS, and QZSS

Solution X pole (\(\upmu\)as) Y pole (\(\upmu\)as) LOD (\(\upmu\)s)
Sol. Orbits Bias Mean RMS Mean RMS Mean RMS
SLR to GNSS-only
 1 Estimated from SLR Annual bias (sat & sta) 102 682 16 523 − 5 168
 2 Fixed to a priori GNSS Annual bias (sat & sta) 88 428 − 9 461 31 95
 3 Fixed to a priori GNSS Estimated every week (sat & sta) 72 617 38 520 − 1 87
 4 Fixed to a priori GNSS Estimated every week (sys & sta) 66 466 41 493 31 94
SLR to LAGEOS + GNSS
 5 LAGEOS-only 78 157 52 143 − 82 123
 6 LAGEOS + GNSS (freely est.) Annual bias (sat & sta) 82 154 55 143 26 69
 7 LAGEOS + GNSS (fixed) Annual bias (sat & sta) 74 149 51 141 1 43
 8 LAGEOS + GNSS (fixed) Estimated every week (sat & sta) 85 201 59 218 4 44