Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 5 8.  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)
 05/08/2021   06:33:10   (  -0.01,-127.90) (   0.48,-125.75)  245.14                80
 05/08/2021   18:54:26   (   0.00,-127.95) (   0.62,-130.91)  335.68                80
 05/10/2021   18:44:56   (   0.00,-128.02) (  -0.00,-127.95)    7.92                80
 05/12/2021   18:32:46   (   0.01,-128.09) (  -0.63,-125.00)  350.92                80
 05/13/2021   06:54:11   (  -0.00,-128.07) (  -0.45,-130.19)  240.91                80
 05/15/2021   06:39:21   (  -0.00,-128.13) (   0.18,-127.24)  100.94                80
 05/15/2021   19:00:36   (  -0.00,-128.16) (   0.91,-132.40)  481.94                80
 05/17/2021   06:27:11   (  -0.00,-128.17) (   0.82,-124.28)  442.17                80
 05/17/2021   18:48:26   (  -0.00,-128.21) (   0.27,-129.44)  140.65                80
 05/19/2021   18:38:57   (  -0.01,-128.25) (  -0.37,-126.49)  200.23                80
 05/20/2021   07:00:21   (   0.01,-128.25) (  -0.70,-131.69)  390.43                80