Tackling artefacts in the timing of relativistic pulsar binaries: Towards the SKA

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Table 2

Estimated bias in Shapiro parameters s and r for MeerKAT and the SKA based on simulated data.

Telescope	MeerKAT	SKA AA*	SKA AA4
Number of dishes	64	144	197
Effective diameter (m)	108	172	204
Estimated RMS (µs)	9.4	3.7	2.6
Bias in Shapiro s	0.7 σ	1.8 σ	2.5 σ
Bias in Shapiro r	0.6 σ	1.4 σ	2.0 σ

Notes. Two stages for the SKA-Mid are shown, the AA* in 2028 with 144 dishes and AA4 with 197 dishes. For all simulations, ‘polyco’ with TZNSPAN=1 min and 30 coefficients were adopted.

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