Planck 2013 results
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Table 4

Example of a power spectrum averaged for the flat fields.

857 GHz × 857 GHz

cent min max C Total error Cirrus error Systematic errors [Jy2 sr-1]

[Jy2 sr-1] [Jy2 sr-1] [Jy2 sr-1] Projection Beam

53 23 84 1.49 × 106 1.27 × 106 1.12 × 106 1.99 × 103 2.31 × 101
114 84 145 6.37 × 105 1.62 × 105 1.16 × 105 1.84 × 103 4.48 × 101
187 145 229 2.87 × 105 3.70 × 104 2.73 × 104 8.00 × 102 5.29 × 101
320 229 411 1.34 × 105 8.04 × 103 5.63 × 103 4.55 × 102 6.70 × 101
502 411 592 7.20 × 104 2.58 × 103 1.49 × 103 1.62 × 102 7.59 × 101
684 592 774 4.38 × 104 1.81 × 103 6.14 × 102 8.93 × 101 6.82 × 101
890 774 1006 3.23 × 104 9.48 × 102 2.85 × 102 9.41 × 101 6.07 × 101
1158 1006 1308 2.40 × 104 4.88 × 102 1.29 × 102 5.23 × 101 4.52 × 101
1505 1308 1701 1.83 × 104 2.58 × 102 5.97 × 101 2.49 × 101 3.41 × 101
1956 1701 2211 1.46 × 104 1.63 × 102 2.77 × 101 2.09 × 101 4.16 × 101
2649 2211 3085 1.16 × 104 1.38 × 102 1.12 × 101 7.89 × 101 6.52 × 101

Notes. This illustrates the order of magnitude of the different errors. The total error contains the cosmic variance and instrumental noise, and also the cirrus residuals (CMB is negligible at this frequency). The contribution of cirrus errors only is given in the sixth column for comparison. The errors linked to the projection of the fields on the tangential plane and those due to the beam, although systematic and not stochastic, are given for convenience in the same units as the total power C, in Cols. 7 and 8, respectively.

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