Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 4 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)
 04/04/2020   09:41:03   (  -0.26,-127.74) (  -1.24,-123.36)  498.95                80
 04/05/2020   22:05:22   (   0.24,-127.70) (   0.05,-128.58)  100.40                80
 04/06/2020   21:43:57   (   0.25,-127.66) (   1.04,-124.00)  417.07                68
 04/08/2020   10:07:55   (  -0.23,-127.58) (   0.16,-129.19)  183.62                80
 04/09/2020   09:46:20   (  -0.24,-127.54) (  -0.89,-124.61)  333.07                80
 04/10/2020   22:10:38   (   0.22,-127.49) (  -0.29,-129.84)  267.72                80
 04/11/2020   21:49:02   (   0.23,-127.44) (   0.71,-125.26)  249.13                80
 04/13/2020   10:13:12   (  -0.20,-127.36) (   0.49,-130.44)  351.77                80
 04/14/2020   09:51:37   (  -0.22,-127.31) (  -0.56,-125.87)  164.37                80
 04/15/2020   22:15:54   (   0.19,-127.25) (  -0.67,-131.09)  437.71                80
 04/16/2020   21:54:19   (   0.20,-127.20) (   0.38,-126.52)   78.88                80