Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 3 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)
 03/05/2020   21:52:34   (   0.35,-128.43) (   0.99,-125.59)  324.46                80
 03/07/2020   10:14:04   (  -0.34,-128.40) (   0.18,-130.78)  271.16                80
 03/08/2020   09:52:28   (  -0.34,-128.39) (  -0.81,-126.20)  249.25                80
 03/09/2020   22:14:07   (   0.33,-128.39) (  -0.37,-131.43)  347.10                80
 03/10/2020   21:57:52   (   0.34,-128.38) (   0.68,-126.86)  173.36                80
 03/12/2020   10:19:22   (  -0.33,-128.34) (   0.50,-132.05)  422.47                80
 03/13/2020   09:57:46   (  -0.33,-128.33) (  -0.54,-127.48)   97.40                80
 03/14/2020   22:19:25   (   0.32,-128.31) (  -0.67,-132.70)  499.99                80
 03/15/2020   22:03:09   (   0.33,-128.30) (   0.37,-128.13)   19.87                80
 03/18/2020   10:05:44   (  -0.31,-128.24) (  -0.23,-128.74)   57.21                80