Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 4 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/09/2020   09:46:21   (  -0.24,-127.69) (  -0.94,-124.63)  350.14                80
 04/10/2020   22:10:39   (   0.22,-127.74) (  -0.24,-129.85)  239.80                80
 04/11/2020   21:49:04   (   0.23,-127.78) (   0.81,-125.28)  285.54                80
 04/13/2020   10:13:14   (  -0.20,-127.84) (   0.39,-130.47)  300.04                80
 04/14/2020   09:51:39   (  -0.22,-127.87) (  -0.66,-125.90)  224.63                80
 04/15/2020   22:15:57   (   0.19,-127.90) (  -0.52,-131.12)  366.49                80
 04/16/2020   21:54:21   (   0.20,-127.94) (   0.53,-126.55)  158.52                80
 04/18/2020   10:18:32   (  -0.17,-127.99) (   0.67,-131.74)  426.81                80
 04/19/2020   09:56:56   (  -0.19,-128.02) (  -0.38,-127.17)   97.63                80
 04/20/2020   22:21:15   (   0.16,-128.05) (  -0.80,-132.39)  494.37                80
 04/21/2020   21:59:39   (   0.17,-128.08) (   0.26,-127.82)   30.35                80