Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 7 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/17/2020   06:50:25   (  -0.01, -75.20) (   0.96, -79.41)  480.87                80
 07/18/2020   06:28:49   (  -0.01, -75.20) (  -0.11, -74.84)   41.32                80
 07/20/2020   18:31:31   (   0.01, -75.21) (  -0.06, -75.48)   30.92                80
 07/21/2020   18:15:15   (   0.01, -75.22) (   0.96, -70.90)  491.70                80
 07/23/2020   06:34:05   (  -0.01, -75.22) (   0.20, -76.09)   99.93                80
 07/24/2020   06:17:48   (  -0.00, -75.22) (  -0.81, -71.51)  423.00                80
 07/25/2020   18:36:47   (   0.00, -75.25) (  -0.35, -76.74)  170.45                80
 07/26/2020   18:20:31   (   0.00, -75.26) (   0.72, -72.17)  352.93                80
 07/28/2020   06:39:22   (  -0.01, -75.27) (   0.44, -77.36)  237.75                80
 07/29/2020   06:23:05   (  -0.00, -75.28) (  -0.57, -72.78)  285.67                80
 07/30/2020   18:42:03   (   0.01, -75.31) (  -0.58, -78.01)  307.27                80