Summary of LFI data characteristics

The LFI performance are 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
Center frequency [GHz]	28.4	44.1	70.4
Scanning beam FWHM[math]^{\rm a}[/math] [arcmin]	33.10	27.94	13.08
Scanning beam ellipticity[math]^{\rm a}[/math]	1.37	1.25	1.27
Effective beam FWHM[math]^{\rm b}[/math] [arcmin]	32.29	27.00	13.21
White noise level in map[math]^{\rm c}[/math] [[math]\mu[/math]K[math]_{CMB}[/math]]	*TBD	*TBD	*TBD
White noise level in timelines[math]^{\rm d}[/math] [[math]\mu[/math]K[math]_{CMB} \;s^{1/2}[/math]]	148.1	174.2	152.0
f[math]_{\rm knee}^{\rm d}[/math] [mHz]	114.1	52.4	19.7
1/[math]f[/math] slope[math]^{\rm d}[/math]	-0.92	-0.88	-1.20
Overall calibration uncertainty[math]^{\rm e}[/math] [%]	0.35	0.26	0.29
Systematic effects uncertainty in Stokes [math]I^{\rm f}[/math] [[math]\mu[/math]K[math]_{CMB}[/math]]	0.88	1.97	1.87
Systematic effects uncertainty in Stokes [math]Q^{\rm f}[/math] [[math]\mu[/math]K[math]_{CMB}[/math]]	1.11	1.14	2.25
Systematic effects uncertainty in Stokes [math]U^{\rm f}[/math] [[math]\mu[/math]K[math]_{CMB}[/math]]	0.95	1.29	2.22

[math]^{\rm a}[/math] Determined by fitting Jupiter observations directly in the timelines.

[math]^{\rm b}[/math] Calculated from the main beam solid angle of the effective beam, [math]\Omega_{\rm eff} = \hbox{mean}(\Omega)[/math]. These values are used in the source extraction pipeline Planck-2015-A35.

[math]^{\rm c}[/math] 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.

[math]^{\rm d}[/math] Values derived from fitting noise spectra.

[math]^{\rm e}[/math] 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 [math]50 \lt \ell \lt 250 [/math], see Planck-2015-A05.

[math]^{\rm f}[/math] Peak-to-peak difference between 99% and 1% quantities in the pixel value distributions from simulated maps, see Planck-2015-A03.