Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 5 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/04/2020   10:15:27   (  -0.10,-128.27) (   0.51,-130.95)  305.81                80
 05/05/2020   09:53:52   (  -0.12,-128.28) (  -0.54,-126.38)  216.57                80
 05/06/2020   22:18:10   (   0.09,-128.28) (  -0.65,-131.60)  378.59                80
 05/07/2020   21:56:34   (   0.11,-128.29) (   0.41,-127.03)  143.87                80
 05/09/2020   10:20:44   (  -0.08,-128.31) (   0.82,-132.21)  444.95                80
 05/10/2020   09:59:08   (  -0.10,-128.32) (  -0.24,-127.64)   76.77                80
 05/12/2020   22:01:51   (   0.08,-128.31) (   0.10,-128.29)    2.35                80
 05/15/2020   10:07:05   (  -0.07,-128.33) (   0.06,-128.90)   65.05                80
 05/16/2020   09:45:29   (  -0.08,-128.33) (  -0.99,-124.33)  456.42                80
 05/17/2020   22:09:48   (   0.05,-128.31) (  -0.20,-129.55)  140.99                80