Summary of LFI data characteristics

Quantification of the performance of LFI is summarized in Table 1 below. All the details can be found in the LFI data processing paper Planck-2015-A03.

Table 1. LFI performance parameters

Parameter	30 GHz	44 GHz	70 GHz
Centre frequency [GHz]	28.4	44.1	70.4
Scanning beam FWHMa [arcmin]	33.10	27.94	13.08
Scanning beam ellipticitya	1.37	1.25	1.27
Effective beam FWHMb [arcmin]	32.29	27.00	13.21
White noise level in mapc [μKCMB]	*TBD	*TBD	*TBD
White noise level in timelinesd [μKCMB s1/2]	148.1	174.2	152.0
fkneed [mHz]	114.1	52.4	19.7
1/f sloped	-0.92	-0.88	-1.20
Overall calibration uncertaintye [%]	0.35	0.26	0.29
Systematic effects uncertainty in Stokes I f [μKCMB]	0.88	1.97	1.87
Systematic effects uncertainty in Stokes Q f [μKCMB]	1.11	1.14	2.25
Systematic effects uncertainty in Stokes U f [μKCMB]	0.95	1.29	2.22

^a Determined by fitting Jupiter observations directly in the timelines.

^b Calculated from the main beam solid angle of the effective beam, Ω_eff = mean(Ω). These values are used in the source extraction pipeline (Planck-2015-A35).

^c White noise per pixel computed from half-ring difference maps. These values are within 1% of the white noise sensitivity computed directly on the timelines, taking into account the actual integration time represented in the maps.

^d Values derived from fitting noise spectra.

^e Sum of the error on the estimation of the calibration constant (0.25 %) and the square root of the squared sum of the following errors: beam uncertainty; sidelobe convolution effect; and unknown systematics as measured from the power spectrum at 50 < ℓ < 250, see Planck-2015-A05.

^f Peak-to-peak difference between 99% and 1% quantities in the pixel value distributions from simulated maps, see Planck-2015-A03.