Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 7 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/07/2020   22:41:26   (  -0.03,-137.19) (  -0.22,-137.97)   89.52                80
 07/08/2020   22:25:10   (  -0.03,-137.20) (   0.79,-133.39)  433.29                80
 07/10/2020   10:46:40   (   0.04,-137.21) (   0.34,-138.59)  156.68                80
 07/11/2020   10:25:03   (   0.04,-137.22) (  -0.66,-134.00)  365.79                80
 07/12/2020   22:46:43   (  -0.04,-137.22) (  -0.47,-139.24)  230.22                80
 07/13/2020   22:30:26   (  -0.03,-137.22) (   0.54,-134.66)  291.99                80
 07/15/2020   10:51:57   (   0.03,-137.23) (   0.60,-139.85)  299.14                80
 07/16/2020   10:30:20   (   0.03,-137.22) (  -0.40,-135.27)  222.38                80
 07/17/2020   22:51:58   (  -0.01,-137.21) (  -0.77,-140.50)  375.49                80
 07/18/2020   22:35:43   (   0.02,-137.20) (   0.29,-135.92)  145.03                80
 07/20/2020   10:57:13   (  -0.02,-137.19) (   0.86,-141.12)  447.74                80