Rotational Errors in IGS Orbit & ERP Products
Rotational Errors in IGS Orbit & ERP Products
Rotational Errors in IGS Orbit & ERP Products
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Spectra of PM Discont<strong>in</strong>uities & Subdaily <strong>ERP</strong> <strong>Errors</strong><br />
PMx‐rates<br />
PMy‐rates<br />
subdaily <strong>ERP</strong><br />
model errors<br />
(TPXO7.1 vs IERS)<br />
effects of<br />
orbit model<br />
<strong>in</strong>teractions<br />
?<br />
• Alias<strong>in</strong>g of subdaily <strong>ERP</strong> tide model errors expla<strong>in</strong>s most peaks:<br />
– annual (K1, P1, T2), 14.2 d (O1), 9.4 d (Q1, N2), & 7.2 d (σ1, 2Q1, 2N2, µ2)<br />
• <strong>Orbit</strong> <strong>in</strong>teractions responsible for odd 1.04 cpy harmonics<br />
03
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