Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 6 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/06/2023   12:33:13   (  -0.08,-157.62) (  -0.17,-157.18)   50.12                80
 06/09/2023   00:40:05   (   0.09,-158.64) (   0.18,-158.19)   50.98                80
 06/10/2023   13:02:30   (  -0.13,-159.28) (   0.85,-163.62)  494.25                80
 06/11/2023   12:41:29   (  -0.10,-159.69) (  -0.20,-159.18)   57.80                80
 06/13/2023   01:04:02   (   0.14,-160.29) (  -0.82,-164.63)  494.48                80
 06/14/2023   00:48:21   (   0.12,-160.70) (   0.23,-160.19)   57.30                80
 06/15/2023   13:10:46   (  -0.16,-161.33) (   0.79,-165.62)  488.98                80
 06/16/2023   12:49:45   (  -0.14,-161.72) (  -0.26,-161.18)   62.13                80