Unit 546 ASTROS, availability date 2005-2020.
No such thing currently in service. To be honest it is unclear what this unit is supposed to represent. ASTROS rockets were used by truck mounted MRLS like unit 554, no fixed or towed launcher were considered. It should be deleted.
Unit 554 ASTROS-30, availability date 2005-2020.
Wrong availability date. According to SIPRI trade registers the first units were delivered in 1984. Regardless of the exact year it was definitively an 80's affair, not a post 2003 development. Its availability date should be changed to something like 1/84-4/103.
Unit 563 ASTROS 30 Bty, availability date 2005-2020.
For the same reasons stated above this unit should be deleted. Unit 560 Sajil-30 is already available in the 80's and Sajil-30 was the iraqi designation for the 127mm ASTROS rockets.
Unit 560 Sajil-30, availability date 1975-2020.
Start date should be changed to 1/84, like it is already for Sajil-40 and Sajil-60 anyway.
EDIT
Some additional sources
http://www.uga.edu/cits/documents/pdf/BrazilXC.pdf
https://naveodtechdiv.jeodnet.mil/IraqOIG/iraqoig.asp