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)
 07/07/2022   22:30:15   (   0.20,-128.46) (  -0.20,-130.30)  209.93                80
 07/08/2022   22:14:30   (   0.19,-128.45) (   0.75,-125.83)  297.92                80
 07/10/2022   10:34:09   (  -0.23,-128.45) (   0.40,-131.22)  315.96                80
 07/11/2022   10:18:25   (  -0.22,-128.44) (  -0.62,-126.77)  191.00                80
 07/12/2022   22:38:11   (   0.25,-128.40) (  -0.61,-132.18)  430.70                80
 07/13/2022   22:22:27   (   0.24,-128.39) (   0.41,-127.72)   76.15                80
 07/16/2022   10:23:39   (  -0.26,-128.36) (  -0.17,-128.63)   31.50                80
 07/17/2022   10:07:55   (  -0.24,-128.34) (  -1.19,-124.18)  475.25                80
 07/18/2022   22:27:41   (   0.27,-128.30) (  -0.05,-129.58)  146.88                80
 07/19/2022   22:11:57   (   0.26,-128.29) (   0.97,-125.13)  359.99                80