Hello @gbrelstaff
You’re comparing T32SMJ from S2A Orbit 14505 from the 2nd of April 2018 with the same Tile from S2B Orbit 005625 from the 4th of April 2018.
Reference to the Data Quality Report for that Period identifies that the geolocation performance for S2B was not fully stabilised at that time - but was still within the Mission key performance specification of less than 20m. The S2B geolocation was improved on the 26th of April 2018 folowing an update of the auxiliary data.
Cheers
Jan
S2MPC Operations Manager