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Table 1

Dipole estimates using the various estimators on the simulated catalogues.

Simulation Estimator Correction S0 N x 𝒟 RA Dec
(µJy) counts/pointing (×10−2) (deg) (deg)
i Poisson 300 1 613 195 4607 ± 4 1.43 ± 0.11 174±5 −1 ± 9
500 964 349 2753 ± 3 1.57 ± 0.15 175±6 −6±10

ii Poisson-rms 4 172 421 11522 ± 8 0.999 ± 0.002 1.54 ± 0.08 174±3 −3 ± 6
Poisson 300 1 617 330 4625 ± 4 1.68 ± 0.13 171 ± 5 20 ± 8
500 965 628 2757 ± 3 1.57 ± 0.14 171 ± 7 −5 ± 11

iii Poisson-rms 2 742 253 7575 ± 6 1.001 ± 0.003 1.49 ± 0.09 174±4 3±9
Poisson 300 1 443 408 4004 ± 4 12.3 ± 0.3 166 ± 6 −84±1
500 949 038 2685 ± 3 4.1 ± 0.3 179±8 −71 ± 2
1000 483 697 1383 ± 2 1.64 ± 0.22 184±9 17±13
Poisson Csim 300 1 443 408 4758 ± 4 1.54 ± 0.12 173±5 −11 ± 8
Csim 500 949 038 2868 ± 4 1.62 ± 0.16 178±7 24 ± 10
Poisson Crms 300 1 443 408 4850 ± 4 1.97 ± 0.16 177±5 39 ± 6
Crms 500 949 038 2873 ± 3 2.20 ± 0.23 176±6 47 ± 6

Notes. Unless otherwise specified, the injected dipole has a direction corresponding to that of the CMB dipole, (RA, Dec) = (170°, −10°), and has an amplitude of 𝒟 = 1.5 × 10−2.

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