Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 1 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/30/2023   09:44:12   (   0.03,-115.99) (   0.18,-116.57)   66.05                80
 01/31/2023   09:28:27   (   0.03,-114.84) (  -0.57,-112.07)  315.17                80
 02/01/2023   21:48:13   (  -0.04,-113.07) (  -1.05,-117.41)  495.54                80
 02/02/2023   21:29:49   (  -0.05,-111.92) (  -0.29,-112.92)  114.14                80
 02/03/2023   21:14:04   (  -0.05,-110.76) (   0.47,-108.42)  267.08                80
 02/06/2023   09:15:18   (   0.06,-107.84) (   0.37,-109.23)  158.36                80
 02/07/2023   08:59:34   (   0.06,-106.69) (  -0.40,-104.74)  222.87                80
 02/09/2023   21:00:55   (  -0.06,-103.77) (  -0.48,-105.58)  206.16                80
 02/10/2023   20:45:10   (  -0.06,-102.62) (   0.29,-101.08)  175.24                80