Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 4 21.  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)
 04/22/2021   06:33:16   (  -0.07,-127.74) (   0.38,-125.73)  229.55                80
 04/22/2021   18:54:31   (   0.06,-127.79) (   0.73,-130.88)  351.39                80
 04/24/2021   18:42:19   (   0.06,-127.72) (   0.08,-127.93)   23.67                80
 04/26/2021   18:32:46   (   0.06,-127.64) (  -0.52,-124.97)  303.94                80
 04/27/2021   06:54:10   (  -0.05,-127.55) (  -0.58,-130.16)  296.19                80
 04/29/2021   06:39:17   (  -0.06,-127.46) (   0.02,-127.20)   30.22                80
 05/01/2021   06:27:04   (  -0.05,-127.36) (   0.63,-124.24)  355.70                80
 05/01/2021   18:48:19   (   0.05,-127.40) (   0.48,-129.39)  227.06                80
 05/03/2021   18:38:46   (   0.04,-127.30) (  -0.12,-126.43)   98.30                80