Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 5 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)
 05/17/2021   06:27:11   (   0.02,-128.17) (   0.82,-124.28)  441.28                80
 05/17/2021   18:48:28   (  -0.03,-128.20) (   0.21,-129.45)  141.83                80
 05/19/2021   18:38:58   (  -0.03,-128.25) (  -0.42,-126.50)  198.89                80
 05/20/2021   07:00:22   (   0.04,-128.25) (  -0.72,-131.69)  391.61                80
 05/22/2021   06:48:12   (   0.03,-128.28) (  -0.08,-128.73)   51.44                80
 05/24/2021   06:33:22   (   0.03,-128.32) (   0.55,-125.78)  288.35                80
 05/24/2021   18:54:38   (  -0.03,-128.33) (   0.54,-130.94)  296.69                80
 05/26/2021   18:45:08   (  -0.03,-128.36) (  -0.10,-127.98)   42.22                80
 05/28/2021   18:32:58   (  -0.03,-128.38) (  -0.74,-125.03)  380.34                80
 05/29/2021   06:54:21   (   0.04,-128.38) (  -0.38,-130.22)  209.49                80