Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 8 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/05/2020   21:54:08   (   0.01,-128.29) (   0.61,-125.52)  314.98                80
 08/07/2020   10:15:38   (  -0.01,-128.32) (   0.55,-130.71)  273.30                80
 08/08/2020   09:54:02   (  -0.00,-128.31) (  -0.46,-126.13)  247.31                80
 08/09/2020   22:15:40   (   0.01,-128.23) (  -0.68,-131.36)  356.67                80
 08/10/2020   21:59:24   (   0.00,-128.21) (   0.33,-126.78)  163.69                80
 08/12/2020   10:18:14   (  -0.01,-128.24) (   0.83,-131.97)  425.38                80
 08/13/2020   10:01:58   (  -0.01,-128.22) (  -0.18,-127.39)   94.42                80
 08/15/2020   22:04:39   (   0.01,-128.10) (   0.06,-128.04)    8.92                80
 08/18/2020   10:04:33   (  -0.01,-128.09) (   0.10,-128.65)   62.96                80