Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 4 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/02/2020   10:19:26   (  -0.03,-137.22) (  -1.00,-132.92)  490.16                80
 04/03/2020   22:41:04   (   0.02,-137.21) (  -0.19,-138.14)  106.70                80
 04/04/2020   22:24:49   (   0.01,-137.21) (   0.86,-133.57)  415.00                80
 04/06/2020   10:46:19   (  -0.01,-137.21) (   0.35,-138.76)  176.70                80
 04/07/2020   10:24:44   (  -0.01,-137.21) (  -0.70,-134.19)  344.46                80
 04/08/2020   22:46:22   (   0.01,-137.19) (  -0.48,-139.41)  253.73                80
 04/09/2020   22:30:06   (   0.01,-137.18) (   0.57,-134.84)  267.20                80
 04/11/2020   10:51:37   (  -0.01,-137.18) (   0.64,-140.03)  325.56                80
 04/12/2020   10:30:01   (  -0.02,-137.16) (  -0.40,-135.46)  194.81                80
 04/13/2020   22:51:40   (   0.01,-137.13) (  -0.77,-140.68)  404.73                80
 04/14/2020   22:35:23   (   0.01,-137.12) (   0.22,-136.10)  115.56                80