a Date in packed format when the record was moved into the SMF buffer. The format 0cyydddF is comprised as follows: the first digit,
"0", is a literal;
"c" indicates the century, where 0 means 19xx, 1 means 20xx, 2 means 21xx, and so on;
"yy" are the final two digits of the year, ranging from 0-99;
"ddd" is the day of the year, ranging from 1-366, and
"F" is a sign value to make the entire field a valid packed number.
b Value can be modified via USERMOD for compatibility with the older releases in which the value was HRN.