Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 4 15.  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)
 04/15/2021   06:27:14   (  -0.09,-127.98) (   0.72,-124.25)  424.36                80
 04/15/2021   18:48:29   (   0.09,-128.04) (   0.39,-129.40)  155.47                80
 04/17/2021   18:38:57   (   0.08,-127.98) (  -0.25,-126.45)  173.52                80
 04/18/2021   07:00:21   (  -0.07,-127.89) (  -0.86,-131.64)  426.83                80
 04/20/2021   06:48:08   (  -0.07,-127.81) (  -0.27,-128.68)   98.71                80
 04/22/2021   06:33:16   (  -0.07,-127.74) (   0.37,-125.73)  229.09                80
 04/22/2021   18:54:31   (   0.06,-127.78) (   0.74,-130.88)  352.34                80
 04/24/2021   18:42:19   (   0.07,-127.71) (   0.09,-127.93)   24.90                80
 04/26/2021   18:32:46   (   0.07,-127.62) (  -0.50,-124.97)  302.30                80
 04/27/2021   06:54:10   (  -0.06,-127.54) (  -0.59,-130.16)  297.47                80