Section 1 - Code Table 4 : Type of data

Code Meaning
0 Analysis products
1 Forecast products
2 Analysis and forecast products
3 Control forecast products
4 Perturbed forecast products
5 Control and perturbed forecast products
6 Processed satellite observations
7 Processed radar observations
8 Event probability
9-191 Reserved
192-254 Reserved for local use
255 Missing

( 1) An initialized analysis is considered a zero-hour forecast