Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 6 19.  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)
 06/19/2020   18:26:46   (   0.08,-127.78) (  -0.83,-123.48)  489.36                80
 06/20/2020   06:48:11   (  -0.07,-127.80) (  -0.24,-128.68)   99.29                80
 06/22/2020   06:33:21   (  -0.07,-127.87) (   0.40,-125.73)  243.72                80
 06/22/2020   18:54:37   (   0.06,-127.88) (   0.69,-130.88)  341.59                80
 06/24/2020   18:45:07   (   0.06,-127.94) (   0.05,-127.93)    1.71                80
 06/26/2020   18:32:57   (   0.06,-127.99) (  -0.60,-124.98)  342.71                80
 06/27/2020   06:54:21   (  -0.05,-128.01) (  -0.53,-130.17)  245.37                80
 06/29/2020   06:39:31   (  -0.05,-128.06) (   0.12,-127.21)   96.18                80
 06/29/2020   19:00:47   (   0.04,-128.06) (   0.97,-132.37)  490.44                80
 07/01/2020   06:27:21   (  -0.05,-128.11) (   0.77,-124.26)  437.25                80
 07/01/2020   18:48:37   (   0.04,-128.11) (   0.33,-129.42)  149.38                80