Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 1 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)
 01/23/2020   18:24:41   (  -0.06, -75.18) (   0.29, -73.58)  181.93                80
 01/25/2020   06:46:12   (   0.06, -75.14) (   0.88, -78.77)  413.85                80
 01/26/2020   06:24:36   (   0.06, -75.13) (  -0.15, -74.20)  106.46                80
 01/27/2020   18:48:56   (  -0.07, -75.13) (  -1.05, -79.43)  490.12                80
 01/28/2020   18:27:20   (  -0.07, -75.13) (  -0.01, -74.85)   30.76                80
 01/31/2020   06:32:35   (   0.07, -75.10) (   0.14, -75.48)   42.30                80
 02/01/2020   06:11:00   (   0.07, -75.10) (  -0.89, -70.90)  478.95                80
 02/02/2020   18:35:19   (  -0.08, -75.11) (  -0.31, -76.13)  116.44                80
 02/03/2020   18:13:43   (  -0.08, -75.11) (   0.73, -71.56)  405.11                80
 02/05/2020   06:37:54   (   0.09, -75.10) (   0.44, -76.75)  188.23                80