Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 1 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/04/2020   10:04:19   (  -0.05,-128.35) (   0.15,-129.11)   87.01                80
 01/05/2020   09:48:04   (  -0.04,-128.37) (  -0.88,-124.54)  436.32                80
 01/06/2020   22:07:04   (   0.05,-128.36) (  -0.24,-129.78)  161.56                80
 01/07/2020   21:50:48   (   0.04,-128.37) (   0.73,-125.19)  361.14                80
 01/09/2020   10:09:39   (  -0.04,-128.40) (   0.42,-130.40)  227.54                80
 01/10/2020   09:53:23   (  -0.04,-128.41) (  -0.61,-125.82)  294.79                80
 01/11/2020   22:12:23   (   0.04,-128.39) (  -0.58,-131.05)  304.25                80
 01/12/2020   21:56:07   (   0.04,-128.39) (   0.45,-126.48)  217.50                80
 01/14/2020   10:14:58   (  -0.04,-128.41) (   0.69,-131.68)  372.55                80
 01/15/2020   09:58:43   (  -0.04,-128.42) (  -0.34,-127.11)  149.15                80