Hi everyone,
there seems to be a GNSS blackout in the "20210517.light-urban.tste.ublox.f9p.obs" file of the "medium urban" dataset.
Exactly between:
> 2021 5 17 2 42 30.0050000 0 28
and
> 2021 5 17 2 44 41.0050000 0 29
During this period, no observation exists in the RINEX file.
Other files like "20210517.light-urban.tste.ublox.f9p.splitter.obs" or the m8t files do have observations in this period.

Is this a known property of the dataset or a problem in the post-processing?

Best Regard
Tim