Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 1 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/02/2020   18:19:41   (  -0.02, -75.19) (   0.49, -73.05)  245.09                80
 01/04/2020   06:43:51   (   0.03, -75.20) (   0.73, -78.24)  347.27                80
 01/05/2020   06:22:16   (   0.02, -75.20) (  -0.30, -73.66)  174.41                80
 01/06/2020   18:46:35   (  -0.03, -75.20) (  -0.88, -78.90)  421.49                80
 01/07/2020   18:25:00   (  -0.03, -75.21) (   0.15, -74.32)  100.37                80
 01/09/2020   06:49:11   (   0.04, -75.21) (   1.00, -79.52)  491.36                80
 01/10/2020   06:27:35   (   0.04, -75.22) (  -0.03, -74.95)   30.49                80
 01/12/2020   18:32:59   (  -0.04, -75.23) (  -0.12, -75.61)   43.06                80
 01/13/2020   18:11:24   (  -0.03, -75.24) (   0.90, -71.03)  479.16                80
 01/15/2020   06:35:35   (   0.04, -75.25) (   0.24, -76.24)  111.50                80
 01/16/2020   06:14:00   (   0.04, -75.26) (  -0.79, -71.66)  411.14                80