Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 10 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/04/2020   10:13:59   (  -0.13,-128.45) (   0.38,-130.79)  266.75                80
 10/05/2020   09:57:42   (  -0.13,-128.45) (  -0.65,-126.21)  255.65                80
 10/06/2020   22:19:20   (   0.13,-128.42) (  -0.54,-131.43)  342.99                80
 10/07/2020   21:57:44   (   0.13,-128.42) (   0.49,-126.85)  178.66                80
 10/09/2020   10:19:13   (  -0.13,-128.44) (   0.65,-132.04)  410.63                80
 10/10/2020   10:02:57   (  -0.14,-128.43) (  -0.37,-127.46)  110.79                80
 10/11/2020   22:24:35   (   0.13,-128.39) (  -0.81,-132.69)  488.78                80
 10/12/2020   22:02:59   (   0.14,-128.38) (   0.22,-128.10)   32.11                80
 10/15/2020   10:08:10   (  -0.14,-128.38) (  -0.04,-128.70)   37.56                80
 10/16/2020   09:49:14   (  -0.14,-128.37) (  -1.07,-124.12)  483.39                80