Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 11 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/16/2021   18:52:29   (  -0.02, -75.19) (  -0.58, -77.70)  286.47                80
 11/17/2021   18:36:11   (  -0.02, -75.19) (   0.46, -73.11)  237.29                80
 11/19/2021   06:57:36   (   0.02, -75.19) (   0.74, -78.27)  351.56                80
 11/20/2021   06:35:58   (   0.02, -75.19) (  -0.30, -73.68)  172.09                80
 11/21/2021   18:57:33   (  -0.02, -75.19) (  -0.85, -78.88)  420.65                80
 11/22/2021   18:41:15   (  -0.02, -75.20) (   0.19, -74.29)  103.31                80
 11/24/2021   07:02:41   (   0.02, -75.21) (   0.96, -79.46)  484.73                80
 11/25/2021   06:41:02   (   0.02, -75.21) (  -0.08, -74.87)   39.39                80
 11/27/2021   18:46:18   (  -0.02, -75.23) (  -0.07, -75.47)   27.93                80
 11/28/2021   18:24:40   (  -0.01, -75.24) (   0.98, -70.88)  496.85                80