Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 5 16.  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   06:27:12   (   0.02,-128.17) (   0.85,-124.29)  441.25                80
 05/17/2021   18:48:27   (  -0.03,-128.20) (   0.24,-129.45)  141.73                80
 05/19/2021   18:38:57   (  -0.03,-128.25) (  -0.39,-126.49)  199.03                80
 05/20/2021   07:00:22   (   0.04,-128.25) (  -0.69,-131.69)  391.52                80
 05/22/2021   06:48:12   (   0.04,-128.29) (  -0.05,-128.74)   51.24                80
 05/24/2021   06:33:22   (   0.03,-128.32) (   0.58,-125.78)  288.55                80
 05/24/2021   18:54:38   (  -0.03,-128.33) (   0.51,-130.94)  296.40                80
 05/26/2021   18:45:08   (  -0.03,-128.36) (  -0.13,-127.99)   42.60                80
 05/28/2021   18:32:58   (  -0.04,-128.38) (  -0.77,-125.04)  380.74                80
 05/29/2021   06:54:22   (   0.04,-128.38) (  -0.35,-130.22)  209.13                80