Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2025 4 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/19/2025   22:14:26   (   0.01,-104.38) (   0.00,-108.73)  483.29                 0
 04/20/2025   21:56:41   (   0.01,-104.38) (   0.08,-103.94)   49.08                80
 04/23/2025   09:59:34   (  -0.00,-104.36) (   0.07,-104.58)   25.12                80
 04/24/2025   09:38:06   (  -0.00,-104.36) (  -0.97,-100.01)  495.17                80
 04/25/2025   21:59:56   (   0.00,-104.37) (  -0.20,-105.25)  100.67                80
 04/26/2025   21:43:48   (   0.00,-104.37) (   0.83,-100.68)  419.84                80
 04/28/2025   10:05:29   (  -0.00,-104.35) (   0.32,-105.89)  174.22                80
 04/29/2025   09:44:00   (  -0.01,-104.35) (  -0.72,-101.32)  345.72                80
 04/30/2025   22:05:50   (   0.00,-104.34) (  -0.50,-106.55)  251.33                80
 05/01/2025   21:49:41   (   0.00,-104.34) (   0.55,-101.98)  269.03                80
 05/03/2025   10:11:22   (  -0.00,-104.33) (   0.65,-107.18)  324.24                80