Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 5 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/02/2023   11:38:37   (   0.10,-141.97) (   0.41,-143.27)  148.77                80
 05/03/2023   11:17:35   (   0.11,-142.43) (  -0.71,-138.84)  410.30                80
 05/04/2023   23:42:47   (  -0.08,-143.12) (  -0.38,-144.28)  132.94                80
 05/05/2023   23:21:45   (  -0.10,-143.58) (   0.75,-139.85)  425.66                80
 05/07/2023   11:46:48   (   0.07,-144.32) (   0.29,-145.26)  107.62                80
 05/08/2023   11:25:45   (   0.09,-144.77) (  -0.78,-140.82)  450.19                80
 05/09/2023   23:50:57   (  -0.06,-145.44) (  -0.23,-146.28)   95.12                80
 05/10/2023   23:29:55   (  -0.08,-145.89) (   0.85,-141.84)  462.38                80
 05/12/2023   11:54:57   (   0.05,-146.61) (   0.18,-147.25)   72.35                80
 05/13/2023   11:33:55   (   0.08,-147.06) (  -0.90,-142.81)  484.94                80
 05/14/2023   23:59:06   (  -0.05,-147.72) (  -0.15,-148.26)   61.05                80