Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 2 24.  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) (   0.17,-137.72)   59.83                80
 02/25/2020   10:20:09   (   0.02,-137.20) (  -0.87,-133.15)  461.38                80
 02/26/2020   22:41:49   (  -0.02,-137.20) (  -0.26,-138.39)  135.42                80
 02/27/2020   22:25:32   (  -0.02,-137.19) (   0.72,-133.81)  385.54                80
 02/29/2020   10:47:03   (   0.02,-137.17) (   0.45,-139.00)  208.84                80
 03/01/2020   10:25:27   (   0.02,-137.16) (  -0.59,-134.43)  311.56                80
 03/02/2020   22:47:07   (  -0.03,-137.14) (  -0.59,-139.66)  286.65                80
 03/03/2020   22:30:51   (  -0.03,-137.13) (   0.46,-135.09)  233.28                80
 03/05/2020   10:49:41   (   0.03,-137.09) (   0.72,-140.28)  362.79                80
 03/06/2020   10:33:25   (   0.03,-137.07) (  -0.26,-135.69)  156.54                80
 03/07/2020   22:52:24   (  -0.03,-137.04) (  -0.91,-140.93)  443.26                80
 03/08/2020   22:36:09   (  -0.03,-137.01) (   0.14,-136.35)   75.82                80