Update wiki page 'Getting Started tutorial'
-
Fix typo:
forcecpu
toforce_cpu
on section Analyzing the data with polaris learn -
Fix fetch dates on section Fetching data with polaris fetch, because the command
polaris fetch \
--start_date 2019-07-21 \
--end_date 2019-07-28 \
--cache_dir /tmp/LightSail-2 \
LightSail-2 \
/tmp/LightSail2-normalized_frames.json
does not bring any data and subsequently returns an error
...
no demoddata found for the observation 864596 of 2019-07-27T18:29:37Z
...
ERROR - There is no file of decoded frames at /tmp/LightSail-2/decoded_frames.json This can happen if the time range specified had no framesto download, and you have not imported frames already.You may want to specify a different time rangewith the --start_date and --end_date options, or importframes downloaded directly from SatNOGS. This can also arise if the downloaded files have been deleted or modified during execution.
Traceback (most recent call last):
File "/home/yiorgos/.venvs/polaris/bin/polaris", line 33, in <module>
sys.exit(load_entry_point('polaris-ml', 'console_scripts', 'polaris')())
File "/home/yiorgos/.venvs/polaris/lib/python3.8/site-packages/click/core.py", line 829, in __call__
return self.main(*args, **kwargs)
File "/home/yiorgos/.venvs/polaris/lib/python3.8/site-packages/click/core.py", line 782, in main
rv = self.invoke(ctx)
File "/home/yiorgos/.venvs/polaris/lib/python3.8/site-packages/click/core.py", line 1259, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/home/yiorgos/.venvs/polaris/lib/python3.8/site-packages/click/core.py", line 1066, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/home/yiorgos/.venvs/polaris/lib/python3.8/site-packages/click/core.py", line 610, in invoke
return callback(*args, **kwargs)
File "/home/yiorgos/fedjo/polaris/polaris/polaris.py", line 93, in cli_fetch
data_fetch_decode_normalize(
File "/home/yiorgos/fedjo/polaris/polaris/fetch/data_fetch_decoder.py", line 193, in data_fetch_decode_normalize
normalized_telemetry = fetch_normalized_telemetry(satellite, start_date,
File "/home/yiorgos/fedjo/polaris/polaris/fetch/fetch_import_telemetry.py", line 366, in fetch_normalized_telemetry
decoded_frames_file = data_merge_and_decode(satellite.decoder, cache_dir,
File "/home/yiorgos/fedjo/polaris/polaris/fetch/fetch_import_telemetry.py", line 247, in data_merge_and_decode
raise NoDecodedFramesFile
polaris.fetch.fetch_import_telemetry.NoDecodedFramesFile
Example dates can be
--start_date 2020-01-21
--end_date 2020-01-28
Edited by Yiorgos Marinellis