Comparison of absolute gain photometric calibration between Planck/HFI and Herschel/SPIRE at 545 and 857 GHz

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Table 2

Estimates of the relative gains, G^Scat, and Pearson correlation coefficients, , at 545 and 857 GHz.

Name					Δu⁵⁴⁵	Δu⁸⁵⁷
					% of	% of

Hi-GAL L59	1.036	0.997	0.9986	0.9982	0.14	0.18
Hi-GAL L30	1.054	1.002	0.9989	0.9993	0.11	0.07
Hi-GAL Field 0_0	1.058	1.021	0.9984	0.9976	0.16	0.24
Hi-GAL Field 2_0	1.046	1.007	0.9992	0.9992	0.08	0.08
Hi-GAL Field 4_0	1.039	0.987	0.9985	0.9983	0.15	0.17
Hi-GAL Field 6_0	1.048	1.006	0.9988	0.9990	0.12	0.10
Hi-GAL Field 8_0	1.047	1.005	0.9985	0.9984	0.15	0.16
Hi-GAL Field 33_0	1.047	1.000	0.9993	0.9991	0.07	0.09
Hi-GAL Field 35_0	1.045	1.004	0.9987	0.9983	0.14	0.17
Hi-GAL Field 39_0	1.053	1.005	0.9995	0.9994	0.06	0.06
Hi-GAL Field 332_0	1.052	1.006	0.9981	0.9970	0.19	0.30
Hi-GAL Field 334_0	1.048	1.005	0.9989	0.9991	0.11	0.09
Aquila	1.047	0.997	0.9988	0.9982	0.13	0.19
Polaris	1.030	0.989	0.9983	0.9981	0.17	0.19
Spider	1.049	1.010	0.9958	0.9978	0.43	0.22

Average	1.047 (± 0.0069)	1.003 (± 0.0080)	0.9986 (± 0.08%)	0.9985 (± 0.07%)	...	...

Notes. Averages (and standard deviations) are over all fields, calculated a posteriori. Last two columns show the difference, in percentage, between the two HFI uncertainty estimates, as described in Sect. 5, which highlights that our assumptions about the HFI uncertainties and the linearity between instrument measurements are very reasonable.

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