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

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/05/2020   22:39:29   (  -0.05,-137.17) (  -0.22,-137.85)   77.75                80
 02/06/2020   22:23:13   (  -0.05,-137.16) (   0.81,-133.27)  442.47                80
 02/08/2020   10:44:44   (   0.06,-137.14) (   0.35,-138.47)  151.86                80
 02/09/2020   10:23:08   (   0.06,-137.12) (  -0.68,-133.89)  367.79                80
 02/10/2020   22:44:49   (  -0.06,-137.09) (  -0.49,-139.13)  232.44                80
 02/11/2020   22:28:32   (  -0.06,-137.07) (   0.48,-134.54)  287.05                80
 02/13/2020   10:50:02   (   0.06,-137.04) (   0.69,-139.74)  308.14                80
 02/14/2020   10:28:27   (   0.06,-137.02) (  -0.34,-135.16)  210.93                80
 02/15/2020   22:50:07   (  -0.07,-136.97) (  -0.83,-140.40)  390.38                80
 02/16/2020   22:33:52   (  -0.07,-136.95) (   0.19,-135.82)  128.39                80