Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 9 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/08/2020   06:46:13   (  -0.04, -75.17) (   0.62, -78.24)  348.84                80
 09/09/2020   06:24:36   (  -0.04, -75.17) (  -0.40, -73.66)  173.24                80
 09/10/2020   18:46:14   (   0.05, -75.18) (  -0.76, -78.88)  421.41                80
 09/11/2020   18:29:58   (   0.05, -75.18) (   0.26, -74.30)  100.81                80
 09/13/2020   06:51:27   (  -0.06, -75.18) (   0.94, -79.49)  491.57                80
 09/14/2020   06:29:52   (  -0.06, -75.18) (  -0.14, -74.92)   30.89                80
 09/16/2020   18:32:34   (   0.06, -75.20) (  -0.00, -75.56)   40.52                80
 09/17/2020   18:16:17   (   0.06, -75.21) (   1.01, -70.98)  482.52                80
 09/19/2020   06:37:46   (  -0.06, -75.22) (   0.17, -76.17)  108.41                80
 09/20/2020   06:16:11   (  -0.06, -75.23) (  -0.90, -71.60)  414.85                80
 09/21/2020   18:37:49   (   0.06, -75.25) (  -0.27, -76.82)  178.26                80