The zone is almost exactly the same as that used by the YG-39 Group 01 launch (1 minute of difference in coordinates for some of the corners), it's also 22 minutes long, it might be a reasonable guess for it to be CZ-2D/YG-39 Group 2, but who knows!
This is might be Yaogan-36 06A~C by CZ-2D, because the drop zone is the same as Yaogan-36 05A~C on July 27.
To Plane 5 of the YG-35/36/39 system.
I suspect YG 35 and 36 are completed.
So, after this one, they will have 9 days to assemble and prepare for the CZ-4C launch (assuming this is not delayed).
So, after this one, they will have 9 days to assemble and prepare for the CZ-4C launch (assuming this is not delayed).
That CZ-4C is from Jiuquan, this launch is from Xichang.