Incorrect GPS position of station

[kaspervd]

The position you obtain if you do something like this:

from sapphire import HiSPARCStations
cluster = HiSPARCStations([509, 511])
s509 = cluster.stations[0]
lat, lon, _ = s509.get_lla_coordinates()
print(lat)
print(lon)

differs from the position you get using the API:
http://data.hisparc.nl/api/station/509/

The difference is several meters. This used to work correctly.. will investigate

[153957]

What is the result of your code, i.e. the output of the prints?
Have you tried different versions of SAPPHiRE?
I assume you are using the latest now?
I did make modifications to the transformations.geographic and clusters modules.
And if you fix it, please add additional tests for the geographic/cluster modules to prevent this from going wrong in the future.

[kaspervd]

I'm using the latest version, it is an undesired side effect of the shift to the center of mass frame in:
clusters.py

Without that line everything works correctly and thus also your modifications 👍

[kaspervd]

I'll need some time to think about how to solve this :)

[153957]

That is not a recent change, so the actual cause is likely something else.
Perhaps you can git-bisect to find where exactly the result changed from good to bad.