Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 3 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/07/2020   22:52:26   (  -0.01,-137.20) (  -0.83,-140.94)  425.95                80
 03/08/2020   22:36:09   (  -0.01,-137.19) (   0.15,-136.35)   94.94                80
 03/10/2020   10:57:41   (   0.00,-137.18) (   0.96,-141.56)  498.50                80
 03/11/2020   10:36:04   (   0.00,-137.17) (  -0.02,-136.97)   22.13                80
 03/13/2020   22:38:48   (  -0.00,-137.14) (  -0.11,-137.63)   56.45                80
 03/14/2020   22:22:32   (  -0.01,-137.12) (   0.94,-133.06)  463.69                80
 03/16/2020   10:44:03   (   0.01,-137.10) (   0.25,-138.25)  130.99                80
 03/17/2020   10:22:26   (   0.01,-137.08) (  -0.73,-133.66)  388.66                80
 03/18/2020   22:44:06   (  -0.01,-137.04) (  -0.42,-138.90)  211.37                80
 03/19/2020   22:27:50   (  -0.01,-137.02) (   0.62,-134.33)  308.11                80