Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 2 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/24/2020   10:41:44   (   0.02,-137.21) (   0.15,-137.73)   59.85                80
 02/25/2020   10:20:09   (   0.02,-137.20) (  -0.89,-133.15)  461.29                80
 02/26/2020   22:41:48   (  -0.02,-137.20) (  -0.30,-138.38)  135.52                80
 02/27/2020   22:25:33   (  -0.02,-137.19) (   0.74,-133.81)  385.41                80
 02/29/2020   10:47:03   (   0.02,-137.17) (   0.42,-139.01)  208.92                80
 03/01/2020   10:25:28   (   0.02,-137.16) (  -0.62,-134.43)  311.50                80
 03/02/2020   22:47:07   (  -0.02,-137.14) (  -0.56,-139.66)  286.77                80
 03/03/2020   22:30:50   (  -0.03,-137.13) (   0.42,-135.08)  233.16                80
 03/05/2020   10:49:41   (   0.03,-137.09) (   0.75,-140.27)  362.87                80
 03/06/2020   10:33:25   (   0.03,-137.07) (  -0.29,-135.70)  156.45                80
 03/07/2020   22:52:25   (  -0.03,-137.04) (  -0.88,-140.93)  443.37                80