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 Include Planck DPC Paper 2018.

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 (TBC)	27.00 (TBC)	13.21 (TBC)
White noise level in timelinesc [μKCMB s1/2]	147.9	174.0	151.9
fkneec [mHz]	113.9	53.0	19.6
1/f slopec	-0.92	-0.88	-1.20
Overall calibration uncertaintyd [%]	0.17	0.12	0.20

^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-A26).

^c Typival values derived from fitting noise spectra

^d difference between first and last iteration of the iterative calibration (for 30 and 44 GHz) or E2E 2015 result (for 70 GHz). In 2015 the calibration uncertainity was 0.35% and 0.26% at 30 and 44, respectively.