SARSEN Error

[S0sh0rt]

I have tested on both CentOS 7 and Windows 10. We are unable to use SARSEN because of this error:
sarsen gtc S1A_IW_GRDH_1SDV_20210519T094926_20210519T094951_037955_047ACD_7336.zip "IW/VV" GLO20_WGS84_clipped.tif
Traceback (most recent call last):
File "/opt/anaconda3/envs/SARSEN/bin/sarsen", line 8, in
sys.exit(app())
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/site-packages/typer/main.py", line 214, in call
return get_command(self)(*args, **kwargs)
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/site-packages/click/core.py", line 1128, in call
return self.main(*args, **kwargs)
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/site-packages/click/core.py", line 1053, in main
rv = self.invoke(ctx)
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/site-packages/click/core.py", line 1659, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/site-packages/click/core.py", line 1395, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/site-packages/click/core.py", line 754, in invoke
return __callback(*args, **kwargs)
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/site-packages/typer/main.py", line 500, in wrapper
return callback(**use_params) # type: ignore
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/site-packages/sarsen/main.py", line 17, in gtc
apps.backward_geocode_sentinel1(
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/site-packages/sarsen/apps.py", line 84, in backward_geocode_sentinel1
measurement_ds = xr.open_dataset(
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/site-packages/xarray/backends/api.py", line 495, in open_dataset
backend_ds = backend.open_dataset(
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/site-packages/xarray_sentinel/xarray_backends.py", line 18, in open_dataset
ds = sentinel1.open_sentinel1_dataset(
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/site-packages/xarray_sentinel/sentinel1.py", line 715, in open_sentinel1_dataset
product_attrs, product_files = esa_safe.parse_manifest_sentinel1(file)
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/site-packages/xarray_sentinel/esa_safe.py", line 111, in parse_manifest_sentinel1
manifest = ElementTree.parse(manifest_path)
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/xml/etree/ElementTree.py", line 1229, in parse
tree.parse(source, parser)
File "/opt/anaconda3/envs/SARSEN/lib/python3.10/xml/etree/ElementTree.py", line 580, in parse
self._root = parser._parse_whole(source)
xml.etree.ElementTree.ParseError: not well-formed (invalid token): line 1, column 2

[alexamici]

@S0sh0rt the not well-formed error comes from ElementTree and it hints that the manifest file is not a valid XML. It looks like a corrupt zip, or the file is really badly broken for other reasons.

Not a Sarsen issue. I'll close.

BTW: GRD images have the IW/VV group, not the IW2/VV one.

[S0sh0rt]

I corrected my comment above. I entered the wrong command that had the wrong parameter: IW2 that I had tested. I use IW.

SARSEN works using the same file after unzipping. There may be an issue with my environment that is causing the zipped file to error.

FYI: SARSEN results are ~identical geometrically and similar radiometrically compared to S1TBX and GAMMA. SARSEN is about 3x more CPU for GTC, and 10x more for RTC, than S1TBX.

[alexamici]

@S0sh0rt thanks for doing comparative testing, I didn't in fact check s1tbx yet!

A question: with "3x" do you mean 3x slower?