Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 7 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/24/2019   06:48:15   (  -0.03, -75.21) (   0.89, -79.28)  464.94                80
 07/25/2019   06:26:40   (  -0.03, -75.22) (  -0.16, -74.72)   57.73                80
 07/27/2019   18:29:25   (   0.03, -75.27) (  -0.01, -75.38)   13.80                80
 07/30/2019   06:34:43   (  -0.04, -75.30) (   0.14, -76.02)   82.58                80
 07/31/2019   06:13:08   (  -0.04, -75.32) (  -0.91, -71.46)  440.31                80
 08/01/2019   18:34:49   (   0.05, -75.35) (  -0.24, -76.70)  153.38                80
 08/02/2019   18:18:33   (   0.05, -75.38) (   0.76, -72.12)  369.97                80
 08/04/2019   06:40:06   (  -0.05, -75.41) (   0.37, -77.34)  220.55                80
 08/05/2019   06:18:31   (  -0.05, -75.43) (  -0.62, -72.77)  303.24                80