Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 10 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)
 10/05/2020   09:57:42   (  -0.13,-128.45) (  -0.65,-126.21)  255.53                80
 10/06/2020   22:19:20   (   0.13,-128.42) (  -0.54,-131.43)  342.70                80
 10/07/2020   21:57:44   (   0.13,-128.42) (   0.49,-126.85)  178.95                80
 10/09/2020   10:19:13   (  -0.13,-128.43) (   0.66,-132.04)  410.73                80
 10/10/2020   10:02:57   (  -0.14,-128.43) (  -0.37,-127.46)  110.68                80
 10/11/2020   22:24:35   (   0.13,-128.40) (  -0.82,-132.68)  488.50                80
 10/12/2020   22:02:59   (   0.14,-128.39) (   0.21,-128.10)   32.37                80
 10/15/2020   10:05:31   (  -0.14,-128.38) (  -0.09,-128.71)   37.65                80
 10/16/2020   09:49:15   (  -0.14,-128.37) (  -1.12,-124.13)  483.29                80
 10/17/2020   22:10:52   (   0.13,-128.33) (  -0.12,-129.34)  116.55                80