Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 4 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/14/2022   10:38:08   (   0.12,-128.39) (   0.97,-132.26)  441.15                80
 04/15/2022   10:17:04   (   0.12,-128.38) (  -0.04,-127.81)   66.01                80
 04/17/2022   22:21:09   (  -0.12,-128.38) (  -0.23,-128.77)   45.00                80
 04/18/2022   22:05:26   (  -0.12,-128.37) (   0.78,-124.32)  461.68                80
 04/20/2022   10:27:45   (   0.11,-128.34) (   0.42,-129.70)  155.34                80
 04/21/2022   10:06:41   (   0.12,-128.32) (  -0.58,-125.25)  350.56                80
 04/22/2022   22:29:11   (  -0.12,-128.30) (  -0.62,-130.67)  269.28                80
 04/23/2022   22:13:26   (  -0.12,-128.29) (   0.33,-126.21)  236.72                80
 04/25/2022   10:33:06   (   0.12,-128.26) (   0.88,-131.59)  380.52                80
 04/26/2022   10:17:22   (   0.12,-128.24) (  -0.13,-127.14)  125.24                80