Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 1 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/05/2020   06:22:16   (   0.03, -75.20) (  -0.33, -73.67)  174.62                80
 01/06/2020   18:46:35   (  -0.03, -75.20) (  -0.85, -78.90)  421.19                80
 01/07/2020   18:25:00   (  -0.03, -75.21) (   0.18, -74.33)  100.73                80
 01/09/2020   06:49:10   (   0.04, -75.22) (   1.03, -79.52)  490.89                80
 01/10/2020   06:27:35   (   0.04, -75.22) (   0.00, -74.94)   31.14                80
 01/12/2020   18:33:00   (  -0.04, -75.23) (  -0.10, -75.61)   42.54                80
 01/13/2020   18:11:24   (  -0.04, -75.24) (   0.93, -71.04)  479.89                80
 01/15/2020   06:35:34   (   0.05, -75.26) (   0.27, -76.23)  110.61                80
 01/16/2020   06:13:59   (   0.04, -75.27) (  -0.76, -71.65)  412.03                80
 01/17/2020   18:38:18   (  -0.05, -75.29) (  -0.43, -76.89)  182.24                80
 01/18/2020   18:16:43   (  -0.05, -75.31) (   0.61, -72.31)  340.88                80