Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 8 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/07/2020   10:15:39   (  -0.01,-128.32) (   0.52,-130.72)  273.68                80
 08/08/2020   09:54:03   (  -0.01,-128.30) (  -0.49,-126.14)  246.81                80
 08/09/2020   22:15:40   (   0.01,-128.23) (  -0.72,-131.35)  356.94                80
 08/10/2020   21:59:24   (   0.01,-128.21) (   0.36,-126.78)  163.38                80
 08/12/2020   10:18:15   (  -0.01,-128.23) (   0.81,-131.98)  426.23                80
 08/13/2020   10:01:58   (  -0.01,-128.21) (  -0.20,-127.39)   93.47                80
 08/15/2020   22:04:39   (   0.02,-128.10) (   0.01,-128.03)    7.89                80
 08/18/2020   10:04:34   (  -0.02,-128.08) (   0.09,-128.65)   64.42                80
 08/19/2020   09:48:17   (  -0.02,-128.05) (  -0.92,-124.07)  454.47                80
 08/20/2020   22:07:15   (   0.02,-127.95) (  -0.28,-129.28)  151.93                80