Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 9 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/17/2020   18:16:16   (   0.03, -75.19) (   0.99, -70.97)  481.50                80
 09/19/2020   06:37:45   (  -0.03, -75.18) (   0.19, -76.16)  111.32                80
 09/20/2020   06:16:09   (  -0.03, -75.18) (  -0.84, -71.57)  410.81                80
 09/21/2020   18:37:47   (   0.03, -75.19) (  -0.33, -76.80)  183.72                80
 09/22/2020   18:21:31   (   0.04, -75.19) (   0.69, -72.22)  338.59                80
 09/24/2020   06:43:00   (  -0.04, -75.19) (   0.48, -77.41)  253.58                80
 09/25/2020   06:21:25   (  -0.04, -75.19) (  -0.60, -72.84)  268.95                80
 09/26/2020   18:43:03   (   0.05, -75.21) (  -0.57, -78.06)  324.86                80
 09/27/2020   18:26:46   (   0.05, -75.22) (   0.45, -73.48)  198.27                80
 09/29/2020   06:48:16   (  -0.05, -75.23) (   0.71, -78.67)  392.16                80
 09/30/2020   06:26:39   (  -0.06, -75.24) (  -0.31, -74.09)  131.45                80