Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 4 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/29/2023   09:11:36   (   0.00,-104.74) (   0.38,-106.56)  207.13                80
 04/30/2023   08:50:32   (   0.00,-104.74) (  -0.61,-102.10)  300.72                80
 05/01/2023   21:13:02   (  -0.00,-104.73) (  -0.61,-107.51)  317.01                80
 05/02/2023   20:57:18   (  -0.00,-104.73) (   0.39,-103.06)  191.17                80
 05/04/2023   09:19:37   (  -0.00,-104.74) (   0.83,-108.43)  420.15                80
 05/05/2023   08:58:34   (  -0.01,-104.74) (  -0.18,-103.97)   87.49                80
 05/07/2023   21:02:40   (   0.02,-104.72) (  -0.01,-104.93)   23.77                80
 05/08/2023   20:46:56   (   0.02,-104.72) (   1.00,-100.48)  483.97                80
 05/10/2023   09:09:16   (  -0.02,-104.72) (   0.21,-105.85)  128.00                80
 05/11/2023   08:48:11   (  -0.02,-104.72) (  -0.74,-101.38)  379.48                80
 05/12/2023   21:10:41   (   0.02,-104.70) (  -0.43,-106.80)  239.64                80