Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 4 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/03/2020   22:41:04   (   0.02,-137.19) (  -0.18,-138.15)  108.09                80
 04/04/2020   22:24:48   (   0.01,-137.19) (   0.81,-133.56)  413.18                80
 04/06/2020   10:46:19   (  -0.01,-137.19) (   0.33,-138.76)  179.17                80
 04/07/2020   10:24:43   (  -0.01,-137.18) (  -0.66,-134.18)  341.55                80
 04/08/2020   22:46:22   (   0.01,-137.15) (  -0.46,-139.42)  257.40                80
 04/09/2020   22:30:06   (   0.02,-137.14) (   0.53,-134.83)  263.09                80
 04/11/2020   10:51:37   (  -0.02,-137.13) (   0.62,-140.03)  330.28                80
 04/12/2020   10:30:00   (  -0.02,-137.12) (  -0.37,-135.45)  189.65                80
 04/13/2020   22:51:39   (   0.01,-137.07) (  -0.81,-140.67)  410.64                80
 04/14/2020   22:35:23   (   0.01,-137.06) (   0.25,-136.10)  109.21                80
 04/16/2020   10:56:54   (  -0.00,-137.04) (   0.96,-141.29)  484.75                80