Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 3 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/18/2023   10:22:17   (   0.14,-127.70) (  -0.36,-125.58)  242.15                80
 03/19/2023   22:44:47   (  -0.14,-127.79) (  -0.87,-130.99)  365.31                80
 03/20/2023   22:29:05   (  -0.15,-127.83) (   0.17,-126.55)  146.44                80
 03/22/2023   10:51:28   (   0.14,-127.86) (   1.04,-131.94)  464.64                80
 03/23/2023   10:30:25   (   0.14,-127.90) (   0.05,-127.49)   46.89                80
 03/25/2023   22:34:34   (  -0.14,-128.02) (  -0.22,-128.46)   49.84                80
 03/26/2023   22:18:52   (  -0.15,-128.06) (   0.77,-124.01)  461.48                80
 03/28/2023   10:38:33   (   0.14,-128.07) (   0.46,-129.39)  150.40                80
 03/29/2023   10:20:10   (   0.15,-128.11) (  -0.54,-124.94)  360.59                80
 03/30/2023   22:42:41   (  -0.15,-128.18) (  -0.66,-130.36)  248.59                80
 03/31/2023   22:26:58   (  -0.15,-128.21) (   0.35,-125.91)  262.39                80