Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 10 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/25/2020   22:57:03   (  -0.02,-137.20) (  -0.96,-141.39)  477.01                80
 10/26/2020   22:40:47   (  -0.02,-137.21) (   0.07,-136.81)   45.56                80
 10/29/2020   10:40:40   (   0.02,-137.22) (   0.04,-137.42)   22.04                80
 10/31/2020   22:43:21   (  -0.02,-137.21) (  -0.23,-138.05)   96.67                80
 11/01/2020   22:27:04   (  -0.02,-137.20) (   0.80,-133.47)  425.18                80
 11/03/2020   10:45:53   (   0.01,-137.20) (   0.34,-138.66)  166.25                80
 11/04/2020   10:29:37   (   0.02,-137.19) (  -0.69,-134.08)  354.96                80
 11/05/2020   22:48:35   (  -0.01,-137.16) (  -0.47,-139.30)  243.66                80
 11/06/2020   22:32:18   (  -0.01,-137.15) (   0.51,-134.71)  277.05                80