Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 11 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/21/2020   10:06:51   (  -0.05,-127.63) (   0.05,-128.19)   63.21                80
 11/22/2020   09:45:14   (  -0.07,-127.67) (  -0.98,-123.61)  463.14                80
 11/23/2020   22:09:32   (   0.04,-127.72) (  -0.20,-128.83)  126.09                80
 11/24/2020   21:47:55   (   0.06,-127.76) (   0.84,-124.25)  399.83                80
 11/26/2020   10:12:04   (  -0.03,-127.83) (   0.32,-129.43)  183.17                80
 11/27/2020   09:50:28   (  -0.05,-127.86) (  -0.72,-124.85)  342.91                80
 11/28/2020   22:14:45   (   0.01,-127.91) (  -0.45,-130.07)  246.35                80
 11/29/2020   21:53:09   (   0.03,-127.94) (   0.59,-125.49)  278.97                80
 12/01/2020   10:17:18   (   0.01,-127.99) (   0.58,-130.68)  305.76                80
 12/02/2020   09:55:42   (  -0.01,-128.02) (  -0.46,-126.10)  219.44                80