Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2020 3 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/28/2020   22:54:42   (   0.02,-137.21) (  -0.95,-141.45)  483.38                80
 03/29/2020   22:38:27   (   0.03,-137.21) (   0.10,-136.88)   37.84                80
 04/01/2020   10:41:01   (  -0.02,-137.20) (   0.06,-137.49)   34.21                80
 04/02/2020   10:19:26   (  -0.02,-137.18) (  -0.98,-132.92)  486.21                80
 04/03/2020   22:41:04   (   0.01,-137.15) (  -0.21,-138.14)  112.97                80
 04/04/2020   22:24:49   (   0.01,-137.14) (   0.84,-133.57)  407.27                80
 04/06/2020   10:46:19   (  -0.00,-137.12) (   0.37,-138.76)  186.66                80
 04/07/2020   10:24:44   (  -0.01,-137.10) (  -0.67,-134.18)  333.03                80
 04/08/2020   22:46:22   (   0.01,-137.06) (  -0.51,-139.41)  267.51                80
 04/09/2020   22:30:06   (   0.01,-137.04) (   0.53,-134.84)  251.94                80
 04/11/2020   10:51:37   (  -0.01,-137.02) (   0.68,-140.02)  343.07                80