Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 1 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/03/2022   22:33:24   (   0.05,-128.21) (  -0.93,-132.54)  494.31                80
 01/04/2022   22:17:41   (   0.05,-128.23) (   0.08,-128.10)   14.74                80
 01/07/2022   10:19:00   (  -0.05,-128.27) (   0.13,-129.05)   88.20                80
 01/08/2022   10:03:18   (  -0.05,-128.29) (  -0.88,-124.60)  420.82                80
 01/09/2022   22:23:08   (   0.06,-128.32) (  -0.31,-130.03)  195.00                80
 01/10/2022   22:07:25   (   0.05,-128.33) (   0.64,-125.57)  313.97                80
 01/12/2022   10:27:07   (  -0.06,-128.36) (   0.52,-130.98)  298.46                80
 01/13/2022   10:11:23   (  -0.05,-128.37) (  -0.44,-126.52)  210.13                80
 01/14/2022   22:31:14   (   0.05,-128.39) (  -0.74,-131.96)  406.58                80
 01/15/2022   22:15:30   (   0.04,-128.40) (   0.22,-127.50)  101.70                80