Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 9 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/25/2022   10:15:34   (   0.30,-128.01) (  -0.15,-125.91)  239.33                80
 09/26/2022   22:38:00   (  -0.28,-127.98) (  -1.00,-131.32)  380.24                80
 09/27/2022   22:22:15   (  -0.29,-128.01) (   0.00,-126.86)  131.66                80
 09/29/2022   10:41:52   (   0.26,-128.12) (   1.21,-132.23)  468.87                80
 09/30/2022   10:26:06   (   0.27,-128.14) (   0.20,-127.77)   42.02                80
 10/02/2022   22:27:26   (  -0.26,-128.11) (  -0.39,-128.72)   69.29                80
 10/03/2022   22:11:41   (  -0.27,-128.13) (   0.62,-124.26)  441.23                80
 10/05/2022   10:31:19   (   0.24,-128.23) (   0.54,-129.64)  160.77                80
 10/06/2022   10:15:34   (   0.25,-128.24) (  -0.47,-125.18)  349.43                80
 10/07/2022   22:35:18   (  -0.22,-128.18) (  -0.77,-130.58)  273.39                80
 10/08/2022   22:19:32   (  -0.23,-128.20) (   0.24,-126.12)  237.22                80