Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 6 13.  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)
 06/13/2019   06:27:27   (   0.14,-128.30) (   1.01,-124.32)  453.28                80
 06/13/2019   18:51:21   (  -0.12,-128.33) (   0.14,-129.47)  129.06                80
 06/15/2019   18:36:32   (  -0.13,-128.30) (  -0.53,-126.52)  203.44                80
 06/16/2019   07:00:35   (   0.11,-128.25) (  -0.60,-131.70)  391.65                80
 06/18/2019   06:48:24   (   0.12,-128.21) (   0.01,-128.74)   59.88                80
 06/20/2019   06:33:33   (   0.13,-128.17) (   0.61,-125.78)  271.45                80
 06/20/2019   18:57:29   (  -0.11,-128.20) (   0.47,-130.94)  311.81                80
 06/22/2019   18:45:18   (  -0.12,-128.15) (  -0.13,-127.98)   19.48                80
 06/24/2019   18:30:28   (  -0.13,-128.10) (  -0.81,-125.03)  350.30                80
 06/25/2019   06:54:31   (   0.11,-128.06) (  -0.37,-130.20)  244.41                80