Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 2 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)
 02/26/2020   10:00:47   (  -0.36,-128.44) (  -0.38,-128.23)   22.88                80
 02/28/2020   22:03:32   (   0.36,-128.46) (   0.28,-128.90)   49.54                80
 02/29/2020   21:47:16   (   0.36,-128.46) (   1.26,-124.31)  472.14                80
 03/02/2020   10:08:46   (  -0.36,-128.44) (  -0.09,-129.51)  123.03                80
 03/03/2020   09:47:10   (  -0.35,-128.43) (  -1.12,-124.93)  397.97                80
 03/04/2020   22:08:50   (   0.35,-128.44) (  -0.06,-130.17)  197.57                80
 03/05/2020   21:52:34   (   0.35,-128.43) (   0.98,-125.59)  323.13                80
 03/07/2020   10:14:05   (  -0.34,-128.39) (   0.20,-130.78)  273.00                80
 03/08/2020   09:52:29   (  -0.34,-128.38) (  -0.83,-126.21)  247.14                80
 03/09/2020   22:14:08   (   0.33,-128.37) (  -0.33,-131.44)  349.47                80