ROSAT/GS/UL/85/007 ROSAT coding standards SGP16 Starlink programming standards ADAM_DOCS:AED003 Interface files ADAM_DOCS:AED007 Monoliths ADAM_DOCS:AED012 Atasks ADAM_DOCS:AED014 Message and Error systems ADAM_DOCS:AED015 Parameter system AST_DOCS:PROG_002 ASTERIX standard data structures AST_DOCS:PROG_003 BDA_ binned data access routines AST_DOCS:PROG_004 DYN_ dynamic memory routines