How to filter data from 100km near the site via HARP

I use the satellite data of the “point_distance (-90, 0, 100[km])” station within 100km, but the result of batch processing of the data is harp._harppy. NoDataError: product contains no variables, or variables without data。 How can I use HARP for overpass

This probably means that the product that you filtered on didn’t have any measurements within 100km of the South Pole. Are you sure that the product should have had such measurements?
If you believe there is an error in HARP, then please provide a reference to the specific product that you tried, so we can verify it on our end.