Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 5 14.  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)
 05/15/2021   06:39:21   (   0.01,-128.12) (   0.17,-127.24)  100.30                80
 05/15/2021   19:00:38   (  -0.02,-128.15) (   0.86,-132.41)  482.99                80
 05/17/2021   06:27:12   (   0.01,-128.17) (   0.86,-124.29)  441.21                80
 05/17/2021   18:48:28   (  -0.02,-128.20) (   0.23,-129.45)  141.96                80
 05/19/2021   18:38:58   (  -0.02,-128.24) (  -0.40,-126.50)  198.64                80
 05/20/2021   07:00:22   (   0.03,-128.24) (  -0.68,-131.70)  391.84                80
 05/22/2021   06:48:12   (   0.03,-128.28) (  -0.04,-128.74)   51.78                80
 05/24/2021   06:33:22   (   0.02,-128.31) (   0.53,-125.78)  287.96                80
 05/24/2021   18:54:37   (  -0.03,-128.33) (   0.56,-130.93)  297.19                80
 05/26/2021   18:45:07   (  -0.02,-128.35) (  -0.08,-127.98)   41.70                80