Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 4 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/05/2023   19:11:58   (   0.04, -75.20) (  -0.37, -76.98)  202.83                80
 04/06/2023   18:50:56   (   0.05, -75.20) (   0.64, -72.53)  304.54                80
 04/08/2023   07:15:57   (  -0.04, -75.20) (   0.55, -77.91)  308.10                80
 04/09/2023   06:54:54   (  -0.05, -75.20) (  -0.47, -73.46)  199.30                80
 04/10/2023   19:20:04   (   0.04, -75.19) (  -0.79, -78.87)  418.92                80
 04/11/2023   18:59:01   (   0.04, -75.19) (   0.23, -74.42)   88.61                80
 04/14/2023   07:05:38   (  -0.03, -75.20) (   0.02, -75.33)   15.90                80
 04/15/2023   06:44:36   (  -0.03, -75.20) (  -1.01, -70.89)  492.32                80
 04/16/2023   19:09:45   (   0.02, -75.21) (  -0.23, -76.30)  124.55                80
 04/17/2023   18:48:42   (   0.02, -75.22) (   0.80, -71.85)  384.13                80