Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 6 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/04/2023   00:29:09   (   0.06,-156.56) (   0.12,-156.19)   41.95                80
 06/06/2023   12:35:54   (  -0.08,-157.62) (  -0.20,-157.18)   49.90                80
 06/09/2023   00:40:06   (   0.09,-158.64) (   0.21,-158.20)   50.28                80
 06/10/2023   13:02:30   (  -0.13,-159.27) (   0.87,-163.61)  494.95                80
 06/11/2023   12:44:09   (  -0.10,-159.68) (  -0.24,-159.18)   57.05                80
 06/13/2023   01:04:02   (   0.14,-160.28) (  -0.84,-164.63)  495.56                80
 06/14/2023   00:48:20   (   0.12,-160.69) (   0.21,-160.19)   56.16                80
 06/15/2023   13:10:46   (  -0.16,-161.32) (   0.81,-165.62)  490.16                80