Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 8 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/27/2021   06:52:05   (  -0.13, -75.20) (   0.42, -77.64)  278.00                80
 08/28/2021   06:30:27   (  -0.13, -75.20) (  -0.64, -73.06)  245.47                80
 08/29/2021   18:52:02   (   0.14, -75.21) (  -0.52, -78.26)  347.35                80
 08/30/2021   18:35:44   (   0.14, -75.22) (   0.48, -73.67)  176.43                80
 09/01/2021   06:57:11   (  -0.15, -75.22) (   0.70, -78.84)  412.82                80
 09/02/2021   06:35:34   (  -0.15, -75.23) (  -0.36, -74.25)  110.94                80
 09/03/2021   18:57:09   (   0.15, -75.24) (  -0.80, -79.46)  481.48                80
 09/04/2021   18:40:52   (   0.16, -75.25) (   0.27, -74.88)   42.84                80
 09/07/2021   06:43:22   (  -0.16, -75.28) (  -0.15, -75.47)   20.91                80