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   22:39:30   (  -0.05,-137.21) (  -0.16,-137.86)   72.88                80
 02/06/2020   22:23:13   (  -0.05,-137.21) (   0.81,-133.27)  448.93                80
 02/08/2020   10:44:44   (   0.05,-137.22) (   0.35,-138.47)  142.57                80
 02/09/2020   10:23:08   (   0.05,-137.22) (  -0.68,-133.89)  378.65                80
 02/10/2020   22:44:48   (  -0.06,-137.20) (  -0.48,-139.13)  219.61                80
 02/11/2020   22:25:53   (  -0.06,-137.20) (   0.55,-134.56)  301.41                80
 02/13/2020   10:50:03   (   0.06,-137.20) (   0.62,-139.75)  290.92                80
 02/14/2020   10:28:28   (   0.06,-137.19) (  -0.41,-135.18)  229.71                80
 02/15/2020   22:50:07   (  -0.07,-137.16) (  -0.80,-140.40)  369.62                80
 02/16/2020   22:33:52   (  -0.07,-137.15) (   0.22,-135.83)  150.71                80
 02/18/2020   10:55:22   (   0.07,-137.14) (   0.95,-141.02)  442.65                80