Sentinel 2 data: satellite and sun zenith angles

[harmel]

Note that you can use the S2 resampler module to compute proper viewing geometrie parameters for every single pixel.
see https://forum.step.esa.int/t/generate-view-angles-from-metadata-sentinel-2/5598/10
but it may be quite heavy in memory usage:

Large time difference when using core or s2tbx resamplers for S2 data (with view angles) from

Hello, As a follow-up to this topic Generate view angles from metadata Sentinel-2 - #10 by harmel I tried both the core (generic) and the s2tbx resampling operators. The s2tbx enables one to get accurate values for the viewing angles of S2-msi pixels. But, the s2tbx (‘org.esa.s2tbx.s2msi.resampler.S2ResamplingOp’) is very slow when called from snappy, and rapidly saturates memory (memory use keeps increasing when loading a second time the same data, hereafter “2nd call”). Attached is a small…