Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 1 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/28/2020   18:27:21   (  -0.06, -75.20) (   0.00, -74.86)   38.77                80
 01/31/2020   06:32:35   (   0.06, -75.21) (   0.13, -75.48)   30.93                80
 02/01/2020   06:11:00   (   0.06, -75.22) (  -0.90, -70.91)  491.41                80
 02/02/2020   18:35:20   (  -0.07, -75.24) (  -0.25, -76.15)  103.16                80
 02/03/2020   18:13:45   (  -0.07, -75.25) (   0.79, -71.57)  419.47                80
 02/05/2020   06:37:54   (   0.08, -75.26) (   0.44, -76.76)  171.64                80
 02/06/2020   06:16:19   (   0.08, -75.26) (  -0.60, -72.18)  351.00                80
 02/07/2020   18:40:39   (  -0.09, -75.28) (  -0.55, -77.42)  243.26                80
 02/08/2020   18:19:03   (  -0.09, -75.30) (   0.48, -72.85)  279.63                80
 02/10/2020   06:43:14   (   0.09, -75.31) (   0.68, -78.04)  310.74                80