[atlas] Probe location obfuscation

Can anyone confirm the geo-location obfuscation of probes as being up to 1km as per https://atlas.ripe.net/about/faq/#are-the-locations-of-probes-made-public I am a Phd student carrying out research on the RIPE atlas platform and an early result seems to indicate 1 probe has an obfuscation of 10km distance but this may be an anomaly or perhaps something not taken into account as yet.