Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 7 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/08/2022   22:14:30   (   0.19,-128.45) (   0.78,-125.84)  298.07                80
 07/10/2022   10:34:10   (  -0.23,-128.45) (   0.37,-131.23)  315.72                80
 07/11/2022   10:18:24   (  -0.22,-128.44) (  -0.59,-126.76)  191.28                80
 07/12/2022   22:38:11   (   0.25,-128.40) (  -0.59,-132.18)  430.31                80
 07/13/2022   22:22:26   (   0.24,-128.39) (   0.37,-127.71)   76.62                80
 07/16/2022   10:23:40   (  -0.26,-128.37) (  -0.20,-128.64)   30.76                80
 07/17/2022   10:07:54   (  -0.24,-128.35) (  -1.16,-124.17)  475.93                80
 07/18/2022   22:27:42   (   0.27,-128.31) (  -0.02,-129.59)  146.11                80
 07/19/2022   22:11:57   (   0.26,-128.29) (   1.00,-125.13)  360.80                80
 07/21/2022   10:31:36   (  -0.29,-128.29) (   0.19,-130.51)  253.09                80