Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 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)
 01/20/2023   18:48:43   (   0.04, -75.19) (   0.70, -72.29)  331.15                80
 01/22/2023   07:11:08   (  -0.04, -75.19) (   0.51, -77.69)  284.58                80
 01/23/2023   06:50:08   (  -0.04, -75.19) (  -0.47, -73.24)  222.20                80
 01/24/2023   19:12:42   (   0.04, -75.21) (  -0.72, -78.68)  395.40                80
 01/25/2023   18:57:02   (   0.04, -75.22) (   0.26, -74.24)  112.14                80
 01/28/2023   06:58:27   (  -0.04, -75.25) (  -0.04, -75.19)    6.41                80
 01/30/2023   19:02:39   (   0.03, -75.30) (  -0.19, -76.18)  101.56                80
 01/31/2023   18:47:00   (   0.03, -75.31) (   0.86, -71.75)  406.94                80
 02/02/2023   07:09:24   (  -0.00, -75.34) (   0.39, -77.14)  205.17                80