Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2022 1 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/20/2022   18:57:45   (   0.06, -75.18) (  -0.73, -78.54)  383.51                80
 01/21/2022   18:42:03   (   0.05, -75.18) (   0.29, -74.10)  123.95                80
 01/23/2022   07:04:25   (  -0.06, -75.19) (   0.89, -79.50)  490.34                80
 01/24/2022   06:43:21   (  -0.06, -75.19) (  -0.07, -75.04)   17.42                80
 01/26/2022   18:47:28   (   0.05, -75.21) (  -0.13, -76.02)   91.98                80
 01/27/2022   18:31:46   (   0.04, -75.22) (   0.88, -71.57)  415.96                80
 01/29/2022   06:54:07   (  -0.04, -75.23) (   0.36, -76.96)  197.70                80
 01/30/2022   06:33:05   (  -0.03, -75.23) (  -0.66, -72.52)  310.19                80
 01/31/2022   18:55:34   (   0.03, -75.25) (  -0.54, -77.94)  306.42                80
 02/01/2022   18:39:50   (   0.03, -75.26) (   0.42, -73.49)  202.14                80