Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 9 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/29/2020   10:08:44   (  -0.13,-128.43) (   0.09,-129.54)  126.85                80
 09/30/2020   09:52:28   (  -0.13,-128.43) (  -0.94,-124.96)  396.30                80
 10/01/2020   22:14:06   (   0.13,-128.41) (  -0.25,-130.19)  202.18                80
 10/02/2020   21:52:29   (   0.13,-128.41) (   0.78,-125.60)  320.53                80
 10/04/2020   10:13:59   (  -0.13,-128.46) (   0.37,-130.80)  266.06                80
 10/05/2020   09:57:42   (  -0.13,-128.46) (  -0.65,-126.21)  256.50                80
 10/06/2020   22:19:21   (   0.13,-128.43) (  -0.53,-131.44)  342.70                80
 10/07/2020   21:57:44   (   0.14,-128.43) (   0.50,-126.86)  179.08                80
 10/09/2020   10:19:13   (  -0.13,-128.45) (   0.65,-132.05)  409.26                80
 10/10/2020   10:02:57   (  -0.14,-128.45) (  -0.38,-127.47)  112.32                80
 10/11/2020   22:24:35   (   0.14,-128.41) (  -0.80,-132.69)  487.73                80