Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 7 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/10/2022   10:34:09   (  -0.23,-128.46) (   0.40,-131.22)  315.55                80
 07/11/2022   10:18:25   (  -0.22,-128.44) (  -0.62,-126.77)  191.54                80
 07/12/2022   22:38:11   (   0.25,-128.41) (  -0.62,-132.17)  429.96                80
 07/13/2022   22:22:27   (   0.24,-128.39) (   0.40,-127.72)   77.04                80
 07/16/2022   10:23:40   (  -0.26,-128.37) (  -0.22,-128.64)   30.16                80
 07/17/2022   10:07:55   (  -0.24,-128.36) (  -1.18,-124.18)  476.73                80
 07/18/2022   22:27:42   (   0.27,-128.32) (  -0.00,-129.59)  145.21                80
 07/19/2022   22:11:57   (   0.26,-128.30) (   0.96,-125.13)  361.79                80
 07/21/2022   10:31:35   (  -0.29,-128.30) (   0.23,-130.51)  251.89                80
 07/22/2022   10:15:51   (  -0.28,-128.28) (  -0.80,-126.05)  254.49                80
 07/23/2022   22:35:38   (   0.31,-128.23) (  -0.39,-131.47)  369.08                80