Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 3 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/21/2020   18:26:19   (  -0.04, -75.17) (   0.25, -73.88)  146.31                80
 03/23/2020   06:47:49   (   0.04, -75.15) (   0.94, -79.07)  447.77                80
 03/24/2020   06:26:14   (   0.04, -75.15) (  -0.10, -74.50)   73.48                80
 03/26/2020   18:28:57   (  -0.04, -75.15) (  -0.05, -75.15)    1.02                80
 03/29/2020   06:34:11   (   0.04, -75.14) (   0.20, -75.77)   71.93                80
 03/30/2020   06:12:36   (   0.04, -75.14) (  -0.85, -71.20)  449.88                80
 03/31/2020   18:34:14   (  -0.04, -75.15) (  -0.33, -76.42)  145.42                80
 04/01/2020   18:17:59   (  -0.04, -75.15) (   0.72, -71.85)  376.66                80
 04/03/2020   06:39:29   (   0.04, -75.15) (   0.49, -77.04)  215.89                80