Rotational Errors in IGS Orbit & ERP Products

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Power Spectra of IGS PM Discontinuities PM‐x PM‐y • Common peaks seen in most AC spectra are: – annual + 5 th & 7 th harmonics of GPS year (351 d or 1.040 cpy) – aliased errors of subdaily ERP tide model
Spectra of Subdaily ERP Tide Model Differences PM‐x PM‐y • Compare TPXO7.1 & IERS ERP models – TPXO7.1 & GOT4.7 test models kindly provided by Richard Ray – assume subdaily ERP model differences expressed fully in IGS PM results
Page 1 and 2: Rotational Errors in IGS Orbit & ER
Page 3: Compute Polar Motion Discontinuitie
Page 7 and 8: Simulated IERS ERP Tide Model Error
Page 9 and 10: Simulated ERP Errors vs Actual Orbi
Page 11 and 12: AC TRF & Orbit Frame Consistency
Page 13 and 14: AC TRF & Polar Motion Consistency
Page 15 and 16: 2008 ± 2009 ± 2010 ± 2011 ± Pai
Page 17 and 18: Compare IGR & IGS PPP Network Solut
Page 19 and 20: Compare IGR & IGS Long‐Arc Orbit
Page 21 and 22: Differences Among IGS Polar Motion
Page 23 and 24: 3 Cornered Hat PM Results with High
Page 25 and 26: Backup Slides

Rotational Errors in IGS Orbit & ERP Products

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