Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 5 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/15/2020   06:43:57   (  -0.01, -75.19) (   0.62, -78.03)  323.95                80
 05/16/2020   06:22:21   (  -0.01, -75.19) (  -0.38, -73.45)  198.37                80
 05/17/2020   18:44:00   (   0.00, -75.21) (  -0.77, -78.68)  395.11                80
 05/18/2020   18:27:44   (   0.01, -75.22) (   0.23, -74.10)  127.84                80
 05/20/2020   06:49:14   (  -0.00, -75.23) (   0.92, -79.29)  463.32                80
 05/21/2020   06:27:39   (  -0.01, -75.24) (  -0.14, -74.72)   59.63                80
 05/23/2020   18:30:21   (   0.01, -75.28) (  -0.01, -75.37)   10.23                80
 05/26/2020   06:35:35   (  -0.00, -75.30) (   0.16, -75.98)   77.33                80
 05/27/2020   06:14:00   (   0.00, -75.32) (  -0.90, -71.41)  446.04                80
 05/28/2020   18:35:38   (  -0.01, -75.35) (  -0.32, -76.63)  146.65                80