Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 6 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)
 06/23/2022   10:47:39   (   0.04,-137.19) (  -0.49,-134.90)  261.82                80
 06/24/2022   23:12:46   (  -0.04,-137.19) (  -0.73,-140.30)  355.04                80
 06/25/2022   22:51:41   (  -0.03,-137.19) (   0.28,-135.85)  152.59                80
 06/27/2022   11:16:39   (   0.03,-137.18) (   0.96,-141.22)  460.78                80
 06/28/2022   10:55:35   (   0.03,-137.18) (  -0.05,-136.77)   46.38                80
 06/30/2022   23:02:17   (  -0.02,-137.15) (  -0.15,-137.72)   65.09                80
 07/01/2022   22:41:12   (  -0.02,-137.14) (   0.86,-133.26)  441.72                80
 07/03/2022   11:06:11   (   0.02,-137.12) (   0.37,-138.64)  172.69                80
 07/04/2022   10:45:06   (   0.02,-137.11) (  -0.65,-134.18)  333.93                80
 07/05/2022   23:10:12   (  -0.03,-137.08) (  -0.57,-139.59)  285.36                80
 07/06/2022   22:49:07   (  -0.02,-137.07) (   0.39,-135.12)  220.97                80