Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 7 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/06/2022   10:10:29   (  -0.17,-128.47) (  -1.00,-124.89)  409.17                80
 07/07/2022   22:30:15   (   0.20,-128.46) (  -0.23,-130.30)  210.25                80
 07/08/2022   22:14:31   (   0.19,-128.45) (   0.79,-125.84)  297.49                80
 07/10/2022   10:34:09   (  -0.23,-128.45) (   0.42,-131.22)  316.52                80
 07/11/2022   10:18:24   (  -0.22,-128.43) (  -0.60,-126.76)  190.32                80
 07/12/2022   22:38:12   (   0.25,-128.39) (  -0.58,-132.18)  431.51                80
 07/13/2022   22:22:26   (   0.24,-128.38) (   0.38,-127.72)   75.23                80
 07/16/2022   10:23:40   (  -0.26,-128.35) (  -0.20,-128.64)   32.57                80
 07/17/2022   10:07:55   (  -0.24,-128.33) (  -1.16,-124.17)  473.98                80
 07/18/2022   22:27:42   (   0.27,-128.29) (  -0.02,-129.59)  148.26                80
 07/19/2022   22:11:57   (   0.26,-128.27) (   1.00,-125.14)  358.48                80