Errors occurred during GAMMA coregistration of images downloaded via burst2safe #134
Description
Hi,
I am encountering coregistration errors in GAMMA when processing S1 images downloaded via burst2safe. The burst IDs used are:
069_146283_IW1, 069_146284_IW1, 069_146285_IW1, 069_146286_IW1,
069_146283_IW2, 069_146284_IW2, 069_146285_IW2 (7 bursts across two scenes).
Master image date: 20210211
Error date: 20200710 (≈30 out of 200+ images failed registration)
Observations for 20200710 Image:
multi_look_ScanSAR failed to generate multi-look imagery (10:2).
Multi-look outputs exhibited significant geometric distortions (see attached figure).
MLI parameters:
20200710.mli.par
Gamma Interferometric SAR Processor (ISP) - Image Parameter File
title: s1a-iw1-slc-vv-20200710t100520-20200710t100531-033391-03de6d-001.tiff S1A-IW-IW1-VV-33391 (software: Sentinel-1 IPF 003.31)
sensor: S1A IW IW1 VV
date: 2020 07 10
start_time: 36320.285787 s
center_time: 36325.957067 s
end_time: 36331.628346 s
azimuth_line_time: 4.11111260e-03 s
line_header_size: 0
range_samples: 4551
azimuth_lines: 2760
range_looks: 10
azimuth_looks: 2
20210211.rmli.par
Gamma Interferometric SAR Processor (ISP) - Image Parameter File
title: s1a-iw1-slc-vv-20210211t100520-20210211t100532-036541-044a97-001.tiff S1A-IW-IW1-VV-36541 (software: Sentinel-1 IPF 003.31)
sensor: S1A IW IW1 VV
date: 2021 2 11 10 5 20.8792
start_time: 36320.880222 s
center_time: 36326.551502 s
end_time: 36332.222781 s
azimuth_line_time: 4.11111260e-03 s
line_header_size: 0
range_samples: 4551
azimuth_lines: 2760
range_looks: 10
azimuth_looks: 2
(20200710, multi-look image during coregistration)
(20200710, multi_look image, IW1 and IW2)
Would you be able to share guidance on resolving this issue?