I must admit, I'm still not sure what you really want and even more how anyone of us should be able to track Y-8 at or from Dingxin - in fact one of the most secret PLAAF bases - ...
This is from my understanding the only two known images of a Y-8C (left no. 78367) and below a Y-8CG (no. 78366 - also known as GD) assigned to the 175th AB:
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What is this "Defense Technical Information Center"?? Is this just a side that collects images?
Here serial number 30078 represents aircraft no. 08 within the 26th Special Mission Air Division, 76th Airborne Command and Control Regiment (30x7x numbers) based at Mahuiling, however this image is old and that particular aircraft was then based at Wuxi-Shuofang.
But again there si no relevance or connection to Dingxin!
Yes, but what's the point? The tail number - in fact an old one since they all now carry two digit low visibility numbers - shows it was a KQ-200 assigned to the 1st Naval Aviation Division, 2nd Air Regiment (according to its 82x1x serial number with xx = aircraft no. 04).