Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 2 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/09/2022   22:53:50   (   0.04,-137.21) (  -0.02,-137.52)   35.31                80
 02/10/2022   22:38:07   (   0.04,-137.21) (   0.95,-133.06)  471.84                80
 02/12/2022   11:00:29   (  -0.03,-137.20) (   0.23,-138.46)  142.81                80
 02/13/2022   10:39:26   (  -0.03,-137.20) (  -0.74,-134.01)  363.89                80
 02/14/2022   23:04:34   (   0.01,-137.19) (  -0.51,-139.42)  255.14                80
 02/15/2022   22:43:31   (  -0.00,-137.18) (   0.51,-134.98)  251.36                80
 02/17/2022   11:08:33   (   0.00,-137.17) (   0.72,-140.36)  364.19                80
 02/18/2022   10:47:30   (   0.00,-137.16) (  -0.31,-135.92)  141.79                80
 02/19/2022   23:09:59   (  -0.00,-137.13) (  -0.94,-141.34)  478.80                80
 02/20/2022   22:54:15   (   0.00,-137.12) (   0.03,-136.88)   27.00                80