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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Simulated <strong>ERP</strong> <strong>Errors</strong> vs Actual <strong>Orbit</strong> Discont<strong>in</strong>uities<br />
Aliased Power <strong>in</strong> Midnight <strong>Orbit</strong> Discont<strong>in</strong>uities<br />
• Ma<strong>in</strong> features of <strong>IGS</strong> orbits (top l<strong>in</strong>es) matched by <strong>ERP</strong> simulation<br />
– annual + 3 rd harmonic of GPS year (351 d or 1.040 cpy)<br />
– ~14d, ~9d, & ~7d subdaily <strong>ERP</strong> aliases<br />
– overall peak magnitudes alike but actual model errors could differ<br />
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