Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 9 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/16/2020   18:32:32   (   0.04, -75.17) (  -0.06, -75.54)   43.42                80
 09/17/2020   18:16:16   (   0.04, -75.16) (   0.96, -70.96)  478.05                80
 09/19/2020   06:37:46   (  -0.04, -75.14) (   0.16, -76.16)  115.55                80
 09/20/2020   06:16:09   (  -0.04, -75.14) (  -0.86, -71.58)  406.15                80
 09/21/2020   18:37:47   (   0.04, -75.14) (  -0.36, -76.79)  189.18                80
 09/22/2020   18:21:31   (   0.04, -75.14) (   0.72, -72.23)  332.69                80
 09/24/2020   06:43:01   (  -0.05, -75.13) (   0.45, -77.41)  260.17                80
 09/25/2020   06:21:24   (  -0.05, -75.13) (  -0.58, -72.83)  261.86                80
 09/26/2020   18:43:02   (   0.06, -75.14) (  -0.59, -78.06)  332.70                80
 09/27/2020   18:26:46   (   0.06, -75.14) (   0.44, -73.48)  189.94                80