Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 3 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/02/2020   10:08:47   (  -0.36,-128.44) (  -0.14,-129.52)  122.55                80
 03/03/2020   09:47:10   (  -0.35,-128.43) (  -1.12,-124.93)  398.50                80
 03/04/2020   22:08:49   (   0.35,-128.44) (  -0.06,-130.16)  197.12                80
 03/05/2020   21:52:34   (   0.35,-128.43) (   0.98,-125.59)  323.66                80
 03/07/2020   10:14:04   (  -0.34,-128.39) (   0.20,-130.78)  272.17                80
 03/08/2020   09:52:29   (  -0.34,-128.38) (  -0.84,-126.21)  248.04                80
 03/09/2020   22:14:08   (   0.33,-128.38) (  -0.33,-131.44)  348.68                80
 03/10/2020   21:57:52   (   0.34,-128.36) (   0.65,-126.85)  171.58                80
 03/12/2020   10:19:22   (  -0.33,-128.33) (   0.53,-132.05)  424.57                80
 03/13/2020   09:57:46   (  -0.33,-128.31) (  -0.51,-127.47)   95.12                80