In the first picture we can clearly see the mast and bridge of an 055 in the background (circled in green).
Given the timing of this photo, I wonder if that 055 is the lead 055, DDG 101 Nanchang or if it might be JN's recent 3rd launched 055.
From what little we see of it, it's hard to tell whether it looks particularly complete and fitted out or not, which could've helped to suggest if it might be DDG 101 or not.
However given its position in the picture it looks like it is sitting
inside the fitting basin, which would be a little bit strange for DDG 101 to be given its work should not include fitting out at this stage.
That said, the direction of the superstructure (and thus bow) in that picture suggests it is pointing in the direction with the bow facing "out" towards the river, whereas the (admittedly blurry) satellite picture of JN above seems to suggest the pointy bow of the probable 055 hull is pointing "inwards"... suggesting the 055 in the picture/green circle might not be JN's 3rd launched 055.
I'm open to alternative explanations. It is also possible that those excellent pictures are not very up to date and were taken before JN's 3rd 055 was launched and it was taken at a time when DDG 101 briefly re entered the fitting basin for whatever reason.
For the record, the noise and blurry satellite picture makes me believe JN has indeed launched its 3rd 055, but to confirm it without a doubt we would optimally like a clear picture of it.
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