The data are divided as follows:

ek050b_1_1.IDI*: contains all continuum data from calibrators and target source.
ek050b_2_1.IDI: contains the burst data from a gate covering the full extension of the burst.
ek050b_3_1.IDI: contains the burst data from a gate covering only the first sub-component of the burst.
ek050b_4_1.IDI: contains the burst data from a gate covering only the second sub-component of the burst.