Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 9 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/08/2020   10:06:38   (  -0.08,-128.04) (   0.16,-129.08)  119.07                80
 09/09/2020   09:50:22   (  -0.08,-128.07) (  -0.86,-124.50)  406.10                80
 09/10/2020   22:12:00   (   0.09,-128.06) (  -0.30,-129.73)  190.42                80
 09/11/2020   21:50:24   (   0.09,-128.09) (   0.72,-125.15)  334.13                80
 09/13/2020   10:11:54   (  -0.10,-128.16) (   0.41,-130.35)  249.20                80
 09/14/2020   09:55:39   (  -0.10,-128.19) (  -0.67,-125.78)  275.15                80
 09/15/2020   22:17:17   (   0.11,-128.17) (  -0.50,-131.00)  322.23                80
 09/16/2020   21:55:40   (   0.11,-128.19) (   0.52,-126.42)  201.79                80
 09/18/2020   10:17:10   (  -0.11,-128.26) (   0.67,-131.61)  382.38                80
 09/19/2020   10:00:54   (  -0.11,-128.27) (  -0.41,-127.04)  141.60                80
 09/20/2020   22:22:33   (   0.11,-128.25) (  -0.76,-132.26)  456.26                80