Difference: HpdpFtsBkgsPointingOffset (7 vs. 8)

Revision 82017-09-13 - IvanV

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META TOPICPARENT	name="Public.HpdpFtsBkgs"

Pointing Offset

Changed:

<
< This includes sources which are clearly known to be a point source but the overlap of SSL and SSW still presents a discontinuity. It can be corrected using the PointingOffsetCorrectorTool available in HIPE v.14.

>
> This includes sources which are clearly known to be a point source but the overlap of SSL and SSW still presents a discontinuity. It can be corrected using the PointingOffsetCorrectorTool available in the Herschel Interactive Processing Environment (HIPE) version 14 or above.

Header parameters:

Ratio SLW First Ring before background subtraction [%]: This parameter refers to the ratio of the flux of the first ring of SLW off-axis detectors to the flux of the central detector.
This was obtained by calculating the ratios of the flux of every SLW off-axis detector to the flux of the central detector for each value of frequency. In order to eliminate the dependancy on frequency, the median was taken for each SLW off-axis detector ratio array, resulting in a single value for every one of them. The final value resulted from taking the median from these last values.
The off-axis detectors used are SLWB2, SLWB3, SLWC2, SLWC4, SLWD2 and SLWD3.

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