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Common parameters
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Station coordinates
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X, Y, Z for each station per 7 days with NNR/NNT constraints on core stations
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Pole coordinates
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X pole, Y pole; eight parameters per 7 days using piece-wise linear parameterization
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UT1–UTC
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Eight parameters per 7 days; fourth parameter fixed to IERS-14-C04
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Geocenter coordinates
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X, Y, Z per 7 days
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Separate parameters
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LAGEOS orbits
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6 Keplerian + 5 empirical:
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–
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\(S_0, S_{S1}, S_{C1}, W_{S1}, W_{C1}\) per 7 days
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GNSS orbits
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–
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Fixed or estimated (see Table 2)
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6 Keplerian + 7 ECOM2
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\(D_0, Y_0, B_0, D_{S2}, D_{C2},B_{S1}, B_{S1}\) per 5 days
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Range biases
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Selected stations; one value per 7 days
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Depending on parameterization from Table 2
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