Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 5 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/12/2022   10:20:14   (   0.09,-127.82) (   0.21,-128.32)   57.03                80
 05/13/2022   10:04:30   (   0.10,-127.79) (  -0.76,-123.86)  447.16                80
 05/14/2022   22:24:18   (  -0.08,-127.75) (  -0.42,-129.28)  175.20                80
 05/15/2022   22:08:33   (  -0.08,-127.71) (   0.56,-124.82)  328.78                80
 05/17/2022   10:28:13   (   0.06,-127.64) (   0.65,-130.21)  292.90                80
 05/18/2022   10:12:28   (   0.07,-127.59) (  -0.33,-125.75)  210.21                80
 05/19/2022   22:32:16   (  -0.05,-127.53) (  -0.89,-131.16)  414.40                80
 05/20/2022   22:16:31   (  -0.06,-127.48) (   0.09,-126.70)   88.95                80
 05/23/2022   10:17:47   (   0.05,-127.36) (   0.08,-127.63)   29.97                80
 05/24/2022   10:02:02   (   0.07,-127.32) (  -0.90,-123.17)  473.22                80