The data records begin in the first record following the last header record, similarly to the way a primary data array is stored. The first parameter of the first group is at the start of the first data record. The first member of the array in each group follows the last parameter, with no spaces or fill. It does not start a new record. Similarly, each parameter-array group immediately follows the previous one; a new group need not begin a new record. The same data types are allowed as for Basic FITS. The data type for the random parameters must be the same as the data type for the data arrays.