Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 1 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)
 01/12/2022   10:27:07   (  -0.06,-128.33) (   0.55,-130.97)  300.77                80
 01/13/2022   10:11:24   (  -0.05,-128.34) (  -0.46,-126.52)  207.31                80
 01/14/2022   22:31:14   (   0.05,-128.35) (  -0.78,-131.94)  410.29                80
 01/15/2022   22:15:31   (   0.04,-128.36) (   0.23,-127.50)   97.52                80
 01/18/2022   10:16:50   (  -0.04,-128.37) (  -0.00,-128.44)    9.25                80
 01/19/2022   10:01:08   (  -0.03,-128.37) (  -1.01,-124.00)  498.17                80
 01/20/2022   22:20:57   (   0.04,-128.37) (  -0.21,-129.42)  120.49                80
 01/21/2022   22:05:14   (   0.04,-128.37) (   0.80,-124.97)  386.61                80
 01/23/2022   10:24:57   (  -0.04,-128.37) (   0.39,-130.37)  228.19                80
 01/24/2022   10:09:13   (  -0.04,-128.36) (  -0.57,-125.92)  278.56                80