An update of the EFI-TII Gain Correction Maps was performed on the three Swarm spacecraft between 11 and 12  January 2022 in the following time windows:

Swarm Alpha:

• from 10:48 to 11:13  UTC of 11 January

Swarm Bravo:

• from 10:00 to 10:26  UTC of 11 January

Swarm Charlie:

• from 10:16 to 10:22  UTC of 12 January

During these time intervals, gaps in EFI-LP data may be observed.