Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 7 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)
 07/12/2022   22:38:12   (   0.25,-128.41) (  -0.57,-132.18)  429.62                80
 07/13/2022   22:22:26   (   0.24,-128.40) (   0.39,-127.72)   77.48                80
 07/16/2022   10:23:40   (  -0.26,-128.38) (  -0.22,-128.64)   29.54                80
 07/17/2022   10:07:55   (  -0.24,-128.36) (  -1.18,-124.17)  477.38                80
 07/18/2022   22:27:42   (   0.27,-128.32) (  -0.00,-129.59)  144.35                80
 07/19/2022   22:11:56   (   0.26,-128.31) (   0.96,-125.12)  362.74                80
 07/21/2022   10:31:35   (  -0.29,-128.31) (   0.22,-130.50)  250.86                80
 07/22/2022   10:15:50   (  -0.28,-128.29) (  -0.80,-126.05)  255.60                80
 07/23/2022   22:35:37   (   0.31,-128.24) (  -0.44,-131.46)  367.80                80
 07/24/2022   22:19:52   (   0.31,-128.22) (   0.58,-127.00)  138.53                80