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During december 2025 field tests there were multiple flights with ecosorb attached to the source. The idea was to observe if both reflection and diffraction effects could be mitigated by the presence of ecosorb.
In this page flights 626 and 628 are analyzed according to the behaviour of the resulting polarization angle as a function of the angular offset between the camera boresight and the telescope line of sight.
The telescope data is from satp3.
As is shown in the right plot, both flights have almost identical angular offsets. There is a horizontal shift between flights but they almost cover the same vertical range.
Polarization angles were computed for crossings from both flights . As seen in the results, the flight 628 with ecosorb shows an uniform distribution without a clear dependency in the vertical offset which, by the contrary, is clearly present in the flight 626.
FLY626 Normal Configuration No Ecosorb Vertical Scan
FLY628 Normal Configuration Outside Ecosorb Vertical Scan
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