Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 3 23.  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)
 03/23/2021   18:45:12   (   0.14,-128.43) (   0.03,-127.91)   59.47                80
 03/25/2021   18:33:00   (   0.14,-128.42) (  -0.57,-124.95)  393.72                80
 03/26/2021   06:54:23   (  -0.14,-128.34) (  -0.54,-130.14)  205.90                80
 03/28/2021   06:39:33   (  -0.14,-128.32) (   0.13,-127.20)  127.94                80
 03/28/2021   19:00:47   (   0.14,-128.39) (   0.99,-132.35)  451.03                80
 03/30/2021   06:27:21   (  -0.14,-128.29) (   0.74,-124.24)  461.24                80
 03/30/2021   18:48:35   (   0.14,-128.36) (   0.37,-129.39)  117.78                80
 04/01/2021   18:39:03   (   0.13,-128.33) (  -0.24,-126.44)  214.66                80
 04/02/2021   07:00:27   (  -0.13,-128.25) (  -0.87,-131.63)  384.65                80
 04/04/2021   06:48:15   (  -0.12,-128.21) (  -0.25,-128.67)   53.27                80