Dataset type code
The dataset type code describes whether the time spacing of the dataset is strictly homogeneous (code "TU", meaning time-series, uniform), or whether the time between sampling or lengths of samples vary (code "TI", meaning time-series, irregular).
Please mind that this metadata element must be consistent with the NASA Ames 1001 element DX in line 8 of the file. Which means, when using dataset type code TI, DX must be 0.0; when using TU, DX in line 8 must be different from 0.0
Set type code: <type-code>
Set type code: TU