Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 6 18.  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)
 06/18/2020   07:00:20   (  -0.07,-127.73) (  -0.93,-131.62)  443.10                80
 06/19/2020   18:26:47   (   0.08,-127.78) (  -0.85,-123.48)  489.37                80
 06/20/2020   06:48:10   (  -0.07,-127.80) (  -0.29,-128.67)   99.36                80
 06/22/2020   06:33:21   (  -0.07,-127.87) (   0.35,-125.72)  243.67                80
 06/22/2020   18:54:36   (   0.06,-127.88) (   0.73,-130.88)  341.63                80
 06/24/2020   18:45:07   (   0.06,-127.94) (   0.03,-127.94)    3.27                80
 06/26/2020   18:32:57   (   0.06,-127.99) (  -0.61,-124.98)  342.65                80
 06/27/2020   06:54:21   (  -0.05,-128.01) (  -0.51,-130.17)  245.46                80
 06/29/2020   06:39:31   (  -0.05,-128.06) (   0.13,-127.22)   96.05                80
 06/29/2020   19:00:47   (   0.04,-128.06) (   0.96,-132.38)  490.54                80
 07/01/2020   06:27:21   (  -0.05,-128.11) (   0.78,-124.27)  437.12                80
 07/01/2020   18:48:37   (   0.04,-128.11) (   0.31,-129.42)  149.50                80