It is getting more clear now! The Brits reported to IAEA that Ira had conducted at least two unannounced missile tests which they believed were Sejils. Time frame coincides with Jan/Feb this year. It all makes sense because Iran did not want to make noise about it and figured the West would hash up due to the impact such news would have on their public opinion of Iran.
So, here we go again, two more tests for Sejils for sure. Why I think they were all Sejils, well, Sejil tests as we knew occured only twice as shown to public (please correct me if I am wrong). Two more tests where conducted early this year and two more now, that brings the total number of tests to six. This should bring Sejil to semi operational level if not fully operational.
Now, what would be an operational advantage for Sejil for moving sea targets is where I need more information. Normally SSMs are used for static targets. I can assume that a targeting system such as Persian gulf missile could be adopted for Sejil but that brings two more questions, is the Sejil warhead as maneuverable as Persian Gulf ASHM? what about the targeting? We know Iran can use UAV's or manned aircrafts for PG ASHM targeting but targets in Indian ocean are much further and better protected. That will bring me to believe other targeting systems are either at works or already there.
Finally, another significance could be what IRGC planners had talked about years ago 'targeting Diego Garcia' the most important US naval and air base in that part of the world. Think about it, in war with Iran almost all US sea and air bases will be next to useless, at least on the paper, but long range air assets and sea assets at Diego Garcia will be the only one left.
Sejil's stated range is 2000Km, but is it really? the missile is assumed to have the same diameter and height as Shahab III but with the solid fuel its range must have improved considerably beyond the official statements for political reasons. Also, Sejil is the latest Iranian medium range missile, that undoubtedly means a new structure to say the least. What I draw is that Sejil must have a lighter structural weight in addition to a better propulsion system. In this case, what range improvement can we realistically expect in comparison with Shahab III? My guess is 50% or near that. What should we see next? It is simple, really! wait to see 'fin-less Sejil'!
If Shahab II range changed from 500Km to 750Km by removing the fins, what change of range can be expected from a 2000 Km Sejil w/o fins? How about 3000km considering the officially stated range? Diego Garcia is about 3800 Km from the nearest Iranian border town 'Jask'. But Sejil needs to improve its range to nearly 5000 km to have a 'safe' launch range to reach Diego Garcia. My assumption is that IRGC must be working on it!
My two cents!
Catsoo