All of the atomic data listed in 13.2.1. are needed by the program and are to be entered via this table.
A template can be found in MID_CLOUD: ABSP.TBL. The quoted parameters are from Morton and Smith (1973) and according to the author the wavelengths are:
vaccum for 
2000 Å, air for 
2000 Å
Command:
The actual format of this table is described in section Auxiliary Data.