Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 6 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/13/2022   10:31:16   (  -0.06,-128.33) (   0.46,-130.75)  275.19                80
 06/14/2022   10:15:31   (  -0.05,-128.34) (  -0.49,-126.28)  234.64                80
 06/15/2022   22:35:18   (   0.08,-128.35) (  -0.68,-131.70)  381.89                80
 06/16/2022   22:19:34   (   0.07,-128.37) (   0.33,-127.24)  127.93                80
 06/18/2022   10:39:13   (  -0.10,-128.40) (   0.87,-132.63)  482.40                80
 06/19/2022   10:23:28   (  -0.08,-128.41) (  -0.13,-128.17)   27.20                80
 06/21/2022   22:24:50   (   0.10,-128.42) (  -0.08,-129.12)   80.04                80
 06/22/2022   22:09:06   (   0.08,-128.44) (   0.93,-124.67)  429.74                80
 06/24/2022   10:28:45   (  -0.12,-128.47) (   0.27,-130.05)  180.72                80
 06/25/2022   10:13:01   (  -0.10,-128.48) (  -0.74,-125.59)  328.46                80