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   06:46:12   (  -0.05, -75.17) (   0.65, -78.23)  349.24                80
 09/09/2020   06:24:35   (  -0.05, -75.17) (  -0.37, -73.65)  172.78                80
 09/10/2020   18:46:14   (   0.05, -75.18) (  -0.79, -78.88)  422.05                80
 09/11/2020   18:29:57   (   0.06, -75.18) (   0.23, -74.30)  100.16                80
 09/13/2020   06:51:28   (  -0.06, -75.18) (   0.91, -79.49)  492.27                80
 09/14/2020   06:29:51   (  -0.07, -75.18) (  -0.11, -74.91)   30.03                80
 09/16/2020   18:32:33   (   0.07, -75.20) (  -0.03, -75.56)   41.54                80
 09/17/2020   18:16:16   (   0.07, -75.20) (   0.99, -70.97)  481.49                80
 09/19/2020   06:37:47   (  -0.07, -75.21) (   0.14, -76.17)  109.43                80
 09/20/2020   06:16:10   (  -0.07, -75.22) (  -0.88, -71.59)  413.73                80