Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 6 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/21/2022   22:24:50   (   0.10,-128.44) (  -0.08,-129.12)   78.48                80
 06/22/2022   22:09:06   (   0.08,-128.45) (   0.93,-124.66)  431.35                80
 06/24/2022   10:28:45   (  -0.12,-128.47) (   0.26,-130.05)  180.04                80
 06/25/2022   10:13:00   (  -0.11,-128.48) (  -0.75,-125.59)  329.12                80
 06/26/2022   22:32:48   (   0.14,-128.48) (  -0.41,-131.01)  288.44                80
 06/27/2022   22:17:02   (   0.13,-128.49) (   0.54,-126.54)  220.63                80
 06/29/2022   10:36:43   (  -0.17,-128.51) (   0.58,-131.94)  391.23                80
 06/30/2022   10:20:57   (  -0.15,-128.51) (  -0.37,-127.47)  117.30                80
 07/02/2022   22:24:59   (   0.17,-128.49) (   0.17,-128.43)    7.11                80