[avs733]

Located and targeted are different. Until Ukraine recently got patriot batteries and humans I highly doubt anything they have could be cued by the NATO radars. More importantly I doubt the us would, and I’m not even sure most strategic isr resources like you think of could pass targeting data in real time to missle systems.

[sgt101]

Even in the 1990's missiles would re-acquire targets after losing them - or after turning off their active targeting systems in order to prevent countermeasures being taken against them.

It's plausible that Ukraine was told where the ship was, launched the missiles in that direction and they acquired and targeted the ship autonomously when they got closer. Of course that's pretty risky as a gambit but the downside was a failed strike and the upside was a doomed capital ship.

[hurryer]

Ships move slowly, you don't need integration, you can input by hand the coordinates. The missile has terminal stage radar guidance.

Ukraine also had a Bayraktar drone flying around the ship area at that time. It could have picked up rough coordinates from that.

[hef19898]

There is not much about the Neptune online, the system tested in aprallel so (Wikipedia is great dor stuff like that) has automtic and manual guidance systems. Ukraine choose Neptune over that other system, so I assume Neptune has the same.

Manual guidance wouod allow you to shoot the missile in the direction of the located target, until you are close enough for the missile to lock on and have it hit using automatic guidance. No idea what was done during hat particular attack, but it sure was possible without radar sorcery.