Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 9 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/24/2020   22:44:32   (  -0.04,-137.20) (  -0.36,-138.47)  145.16                80
 09/25/2020   22:28:17   (  -0.04,-137.20) (   0.72,-133.90)  376.80                80
 09/27/2020   10:47:06   (   0.03,-137.21) (   0.44,-139.09)  214.09                80
 09/28/2020   10:30:50   (   0.03,-137.21) (  -0.58,-134.51)  307.73                80
 09/29/2020   22:49:48   (  -0.02,-137.19) (  -0.60,-139.73)  289.80                80
 09/30/2020   22:33:31   (  -0.02,-137.19) (   0.43,-135.15)  231.93                80
 10/02/2020   10:52:21   (   0.02,-137.19) (   0.73,-140.34)  359.26                80
 10/03/2020   10:36:04   (   0.02,-137.18) (  -0.29,-135.76)  162.20                80
 10/04/2020   22:55:03   (  -0.02,-137.16) (  -0.89,-140.98)  436.17                80
 10/05/2020   22:38:46   (  -0.02,-137.15) (   0.14,-136.40)   84.79                80
 10/08/2020   10:41:19   (   0.02,-137.12) (  -0.01,-137.01)   12.54                80