Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 5 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/26/2020   09:56:01   (  -0.04,-128.21) (  -0.33,-126.83)  157.43                80
 05/27/2020   22:20:20   (   0.02,-128.17) (  -0.83,-132.06)  442.74                80
 05/28/2020   21:58:44   (   0.03,-128.15) (   0.17,-127.48)   77.12                80
 05/31/2020   10:01:18   (  -0.02,-128.12) (  -0.04,-128.09)    4.57                80
 06/02/2020   22:06:41   (   0.01,-128.05) (  -0.12,-128.74)   78.07                80
 06/03/2020   21:45:04   (   0.02,-128.03) (   0.88,-124.15)  441.16                80
 06/05/2020   10:09:13   (  -0.00,-128.01) (   0.31,-129.34)  152.04                80
 06/06/2020   09:47:38   (  -0.02,-127.98) (  -0.75,-124.77)  366.40                80
 06/07/2020   22:11:56   (  -0.00,-127.91) (  -0.47,-129.99)  236.64                80