Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 10 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/04/2020   10:13:58   (  -0.13,-128.45) (   0.40,-130.79)  266.79                80
 10/05/2020   09:57:42   (  -0.13,-128.45) (  -0.62,-126.20)  255.58                80
 10/06/2020   22:19:20   (   0.13,-128.42) (  -0.57,-131.43)  342.89                80
 10/07/2020   21:57:44   (   0.13,-128.42) (   0.46,-126.85)  178.77                80
 10/09/2020   10:19:13   (  -0.13,-128.44) (   0.68,-132.04)  410.71                80
 10/10/2020   10:02:56   (  -0.14,-128.43) (  -0.34,-127.46)  110.68                80
 10/11/2020   22:24:35   (   0.13,-128.39) (  -0.84,-132.68)  488.73                80
 10/12/2020   22:02:58   (   0.14,-128.38) (   0.18,-128.10)   32.22                80
 10/15/2020   10:05:31   (  -0.14,-128.38) (  -0.07,-128.71)   37.59                80
 10/16/2020   09:49:15   (  -0.14,-128.37) (  -1.09,-124.13)  483.23                80
 10/17/2020   22:10:53   (   0.14,-128.32) (  -0.09,-129.35)  116.80                80