Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 2 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)
 02/03/2020   10:39:25   (   0.04,-137.20) (   0.06,-137.19)    2.48                80
 02/05/2020   22:39:29   (  -0.05,-137.17) (  -0.18,-137.86)   77.87                80
 02/06/2020   22:23:13   (  -0.05,-137.16) (   0.80,-133.27)  442.41                80
 02/08/2020   10:44:43   (   0.06,-137.14) (   0.36,-138.47)  151.87                80
 02/09/2020   10:23:08   (   0.06,-137.12) (  -0.68,-133.89)  367.84                80
 02/10/2020   22:44:47   (  -0.06,-137.09) (  -0.53,-139.12)  232.24                80
 02/11/2020   22:28:32   (  -0.06,-137.07) (   0.51,-134.55)  287.29                80
 02/13/2020   10:50:02   (   0.06,-137.04) (   0.65,-139.74)  307.78                80
 02/14/2020   10:28:25   (   0.06,-137.02) (  -0.33,-135.16)  211.39                80
 02/15/2020   22:50:06   (  -0.07,-136.97) (  -0.81,-140.40)  389.74                80
 02/16/2020   22:33:49   (  -0.07,-136.95) (   0.17,-135.81)  129.16                80