Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 4 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/13/2022   10:54:26   (  -0.03,-137.19) (  -0.04,-137.17)    3.11                80
 04/15/2022   23:01:11   (   0.03,-137.17) (  -0.16,-138.14)  110.08                80
 04/16/2022   22:40:07   (   0.03,-137.16) (   0.78,-133.67)  396.31                80
 04/18/2022   11:05:06   (  -0.03,-137.14) (   0.42,-139.06)  218.62                80
 04/19/2022   10:44:03   (  -0.03,-137.12) (  -0.59,-134.60)  287.03                80
 04/20/2022   23:09:12   (   0.02,-137.09) (  -0.62,-140.03)  334.73                80
 04/21/2022   22:50:48   (   0.02,-137.07) (   0.33,-135.56)  170.49                80
 04/23/2022   11:13:07   (  -0.02,-137.04) (   0.87,-140.95)  445.99                80
 04/24/2022   10:52:03   (  -0.02,-137.01) (  -0.13,-136.50)   58.93                80
 04/26/2022   22:56:08   (   0.01,-136.94) (  -0.12,-137.46)   58.65                80