Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 8 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 08/02/2019   18:36:43   (   0.02,-128.29) (  -0.34,-126.46)  207.61                80
 08/03/2019   07:00:46   (  -0.06,-128.29) (  -0.79,-131.64)  381.30                80
 08/05/2019   06:48:36   (  -0.05,-128.33) (  -0.13,-128.69)   41.63                80
 08/07/2019   06:33:46   (  -0.04,-128.36) (   0.53,-125.74)  297.71                80
 08/07/2019   18:57:41   (   0.08,-128.37) (   0.61,-130.89)  286.73                80
 08/09/2019   18:42:51   (   0.07,-128.40) (  -0.04,-127.94)   52.22                80
 08/11/2019   18:30:40   (   0.06,-128.42) (  -0.65,-124.98)  390.71                80
 08/12/2019   06:54:44   (  -0.10,-128.42) (  -0.48,-130.16)  198.04                80
 08/14/2019   06:39:54   (  -0.09,-128.44) (   0.18,-127.22)  139.86                80
 08/14/2019   19:03:49   (   0.13,-128.44) (   0.96,-132.36)  445.51                80